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Nanodevice Engineering
for a Better Chemical Gas Sensing Technology

Publications and Conferences

Journal Papers:

Free Open Access to the documents granted trough the Institutional Repository links.
Preprint versions these documents are fully available in the Institutional Repository as soon as the embargo period established by the editors is over. In any case, copies to the authors can be directly requested following the "Request a copy" links available in each document fiche.

  1. Jordi Samà, Guillem Domènech-Gil, Isabel Gràcia, Xavier Borrisé, Carles Cané, Sven Barth, Frederik Steib, Andreas Waag, Juan Daniel Prades, Albert Romano-Rodríguez; (2019) Electron beam lithography for contacting single nanowires on non-flat suspended substrates. Sensors and Actuators, B: Chemical, Vol. 286, pp. 616-623. Institutional Repository. ISSN: 0925-4005.
  2. Gregor Scholz, Shinta Mariana, Agus Dharmawan, Iqbal Syamsu, Philipp Hörmann, Carsten Reuse, Jana Hartmann, Karsten Hiller, Joan Prades, Hutomo Wasisto, Andreas Waag; (2019) Continuous Live-Cell Culture Imaging and Single-Cell Tracking by Computational Lensfree LED Microscopy. Sensors, Vol. 19, Issue 5, pp. 1234. Open Access. ISSN: 1424-8220.
  3. Olga Casals, Nicolai Markiewicz, Cristian Fabrega, Isabel Gràcia, Carles Cané, Hutomo Suryo Wasisto, Andreas Waag, Joan Daniel Prades; (2019) A Parts Per Billion (ppb) Sensor for NO 2 with Microwatt (μW) Power Requirements Based on Micro Light Plates. ACS Sensors, In press. Institutional Repository. ISSN: 2379-3694.   
  4. Nicolai Markiewicz, Olga Casals, Cristian Fabrega, Isabel Gràcia, Carles Cané, Hutomo Suryo Wasisto, Andreas Waag, Joan Daniel Prades; (2019)  Micro light plates for low-power photoactivated (gas) sensors. Applied Physics Letters, Vol. 114, Issue 5, pp. 053508. Institutional Repository. ISSN: 0003-6951.
  5. Gerhard Müller , J. Prades , Angelika Hackner , Andrea Ponzoni , Elisabetta Comini , Giorgio Sberveglieri; (2018) Sensitivity-Selectivity Trade-Offs in Surface Ionization Gas Detection. Nanomaterials, Vol. 8, Issue 12, 1017 pp. Open Access. ISSN: 2079-4991.
  6. C. Fàbrega, O. Casals, F. Hernández-Ramírez, J.D. Prades; (2018) A review on efficient self-heating in nanowire sensors: Prospects for very-low power devices. Sensors and Actuators, B: Chemical, Vol. 256, pp. 797-811. Institutional Repository. ISSN: 0925-4005.
  7. Davide Cammi, Kseniia Zimmermann, René Gorny, Angelina Vogt, Frank Dissinger, Alaaeldin Gad, Nicolai Markiewicz, Andreas Waag, Joan Daniel Prades, Carsten Ronning, Siegfried R. Waldvogel, Tobias Voss; (2018). Enhancement of the Sub-Band-Gap Photoconductivity in ZnO Nanowires through Surface Functionalization with Carbon Nanodots. Journal of Physical Chemistry C, Vol.  122, Issue 3, pp. 1852-1859. Institutional Repository. ISSN:1932-7447.
  8. Cristian Fàbrega, Luis Fernández, Oriol Monereo, Alba Pons-Balagué, Elena Xuriguera, Olga Casals, Andreas Waag, Joan Daniel Prades; (2017). Highly Specific and Wide Range NO 2 Sensor with Color Readout. ACS Sensors, Vol. 2, Issue 11, pp. 1612-1618. Institutional Repository ISSN: 2379-3694.
  9. Isaac Gállego, Brendan Manning, Joan Daniel Prades, Mònica Mir, Josep Samitier, Ramon Eritja; (2017). DNA-Origami-Driven Lithography for Patterning on Gold Surfaces with Sub-10 nm Resolution. Advanced Materials, Vol. 29, Issue 11, pp. 1603233. Institutional Repository. ISSN: 0935-9648.
  10. Lorenzo Caccamo, Cristian Fàbrega, Marcel Marschewsk, Sönke Fündling, Alaaeldin Gad, Olga Casals, Gerhard Lilienkamp, Oliver Höfft, Joan Daniel Prades, Winfried Daum, Andreas Waag; (2016).Charge Transfer Characteristics of n-type In0.1Ga0.9 N Photoanode across Semiconductor–Liquid Interface. Journal of Physical Chemistry C, Vol. 120/Issue 51, pp. 28917-28923. Institutional Repository. ISSN: 1932-7447.
  11. Alaaeldin Gad, Martin W. G. Hoffmann, Olga Casals, Leonhard Mayrhofer, Cristian F à brega, Lorenzo Caccamo, Francisco Hern á ndez-Ram í rez, Matin S. Mohajerani, Michael Moseler, Hao Shen, Andreas Waag, and Joan Daniel Prades.; (2016). Integrated Strategy toward Self-Powering and Selectivity Tuning of Semiconductor Gas Sensors. ACS Sensors, Vol. 1, Issue 10, pp. 1256-1264. Institutional Repository. ISSN: 2379-3694. WG: 664220.
  12. Samà J.; Barth S.; Domènech-Gil G.; Prades J.D.; López N.; Casals O.; Gràcia I.; Cané C.; Romano-Rodríguez A.; (2016). Site-selectively grown SnO2 NWs networks on micromembranes for efficient ammonia sensing in humid conditions. Sensors and Actuators B:  Chemical, 232, pp. 402-409. Institutional Repository . ISSN: 0925-4005. WG: 659807.
  13. Monereo, O.; Casals, O.; Prades, J.D.; Cirera, A. (2016). Self-heating in pulsed mode for signal quality improvement: Application to carbon nanostructures-based sensors. Sensors and Actuators B:  Chemical, 226, pp. 254 - 265 . Institutional Repository . ISSN: 0925-4005. WG: 659360.
  14. Monereo, O. ; Illera, S.; Varea, A. ; Schmidt, M.; Sauerwald, T. ; Schütze, A. Cirera, A.; Prades, J. D. (2016). Localized self-heating in large arrays of 1D nanostructures. Nanoscale, 8, pp. 5082 - 5088 . Institutional Repository . ISSN: 2040-3364. WG: 659361
  15. Guilera, J.; Fàbrega, C.; Casals, O.; Hernandez-Ramirez, F.; Wang, S.; Mathur, S.; Udrea, F.; De Luca, A.; Ali, S.Z.; Romano-Rodriguez, A. ; Prades, J.D.; Morante, J.R. (2015). Facile integration of ordered nanowires in functional devices.  Sensors and Actuators B: Chemical, 221, pp. 104 - 112 . Institutional Repository . ISSN: 0925-4005. WG: 654217.
  16. Martínez, B.; Monton, M.; Vilajosana, I.; Prades, J.D. (2015). The Power of Models: Modeling Power Consumption for IoT devices. IEEE Sensors Journal, 15(10), pp. 5777 - 5789 . Institutional Repository . ISSN: 1530-437X. WG: 660493.
  17. Monereo, O.; Prades, J.D.; Cirera, A. (2015).  Self-heating effects in large arrangements of randomly oriented carbon nanofibers: Application to gas sensors.   Sensors and Actuators B: Chemical, 211, pp. 489 - 497 . Institutional Repository . ISSN: 0925-4005. WG: 660483.
  18. Shao, F; Fan, JD; Hernandez-Ramirez, F; Fabrega, C; Andreu, T; Cabot, A; Prades, JD; Lopez, N ; Udrea, F; De Luca, A; Ali, SZ; Morante, JR (2016).  NH3 sensing with self-assembled ZnO-nanowire μ  HP sensors in isothermal and temperature-pulsed mode.   Sensors and Actuators B: Chemical, 226, pp. 110 - 117 .Institutional Repository . ISSN: 0925-4005. WG: 660489.
  19. Hoffmann, M.W.G.; Mayrhofer, L.; Casals, O.; Caccamo, L.; Hernandez-Ramirez, F.; Lilienkamp, G.; Daum, W.; Moseler, M.; Waag, A.; Shen, H.; Prades, J. D.; (2014). A Highly Selective and Self-Powered Gas Sensor via Organic Surface Functionalization of p-Si/n-ZnO Diodes. Advanced Materials, 26(47), p. 8017 . Institutional Repository . ISSN: 0935-9648. WG: 644579.
Previous related research:
  • Shao, F.; Hernandez-Ramirez, F.; Prades, J.D.; Fabrega, C.; Andreu, T.; Morante, J.R. (2014).  Copper (II) oxide nanowires for p-type conductometric NH3 sensing.  Applied Surface Science, 311, pp. 177 - 181 .10.1016/j.apsusc.2014.05.035 . ISSN: 0169-4332. WG: 644580.
  • Hoffmann, M.W.G.; Prades, J. D.; Mayrhofer, L.; Hernandez-Ramirez, F.; Järvi, T.T.; Moseler, M.; Waag, A.; Shen, H. (2013). Highly Selective SAM-Nanowire Hybrid NO2 Sensor: Insight into Charge Transfer Dynamics and Alignment of Frontier Molecular Orbitals. Advanced Functional Materials, 24(5), pp. 595 - 602 . Institutional Repository . ISSN: 1616-301X. WG: 634003.

PhD Theses:

  • Hoffmann, Martin W. G. (Jan 2015). A Novel Sensor Concept for Selective and Self-Powered Gas Detection. Universitat de Barcelona. Institutional Repository 
  • Monereo, Oriol (Oct 2016). Gas sensors based on carbon nanofibers: a low power consumption approach. Universitat de Barcelona. Institutional Repository.
  • Samà, Jordi (Dec 2016). New Fabrication Methodologies for the Development of Low Power Gas Sensors Based on Semiconducting Nanowires. Universitat de Barcelona. Institutional Repository.

Proceedings:

  1. K. Schmitt , K. Tarantik , C. Pannek , I. Benito-Altamirano , O. Casals , C. Fàbrega , A. Romano-Rodríguez , J. Wöllenstein , J. D. Prades. (2017). Colorimetric sensor for bad odor detection using automated color correction.Proceedings Smart Sensors, Actuators, and MEMS VIII,  2017, vol. 10246, num. 102461F. Institutional Repository.
  2. Jordi Samà, Sven Barth, Román Jiménez-Díaz, Juan-Daniel Prades, Olga Casals, Isabel Gracia, Carles Cané, Albert Romano-Rodríguez. (2015). Locally Grown SnO2 NWs as Low Power Ammonia Sensor. Procedia Engineering, 120, pp. 215-219. Open Access. ISSN: 1877-7058.
  3. Jordi Samà, Juan Daniel Prades, Olga Casals, Sven Barth, Isabel Gracia, Carles Cané, Guillem Domènech-Gil, Francisco Hernández-Ramírez, Albert Romano-Rodríguez. (2015). Low-cost Fabrication of Zero-power Metal Oxide Nanowire Gas Sensors: Trends and Challenges. Procedia Engineering, 120, pp. 488-491. Open Access. ISSN: 1877-7058.
  4. M.W.G. Hoffmann, O. Casals, A.E. Gad, L. Mayrhofer, C. Fàbrega, L. Caccamo, F. Hernández-Ramírez, G. Lilienkamp, W. Daum, M. Moseler, H. Shen, A. Waag, J.D. Prades.(2015). Novel Approaches Towards Highly Selective Self-Powered Gas Sensors. Procedia Engineering, 120, pp. 623-627. Open Access. ISSN: 1877-7058.
  5. O. Monereo, O. Casals, J.D. Prades, A. Cirera. (2015). A Low-cost Approach to Low-power Gas Sensors Based on Self-Heating Effects in Large Arrays of Nanostructures. Procedia Engineering, 120, pp. 787-790. Open Access. ISSN: 1877-7058.

Conference presentations:

  1. XXXXXXXX Micro Light Plates for Photoactivated Micro-Power Gas Sensors (Presentation of Communication). Ferrara, Italy, 8th GOSPEL Workshop.
  2. XXXXXXXX Efficient Self-Heating in Gallium Nitride Nanopillars for Ultra-Low-Power Mass-Producible Gas Sensors  (Presentation of Communication). Fukuoka, Japan, ISOEN 2019
  3. XXXXXXXX A Microwatt Gas Sensor for NO2 Detection in the Parts per Billion Range  (Presentation of Communication). Fukuoka, Japan, ISOEN 2019
  4. XXXXXXXX  Compact, versatile and cost-effective colorimetric cas sensors (Presentation of Communication). Fukuoka, Japan, ISOEN 2019.
  5. XXXXXXXX ULTRA LOW POWER MASS-PRODUCIBLE GAS SENSOR BASED ON EFFICIENT SELF-HEATED GaN NANORODS (Poster). Berlin, Germany, Eurosensors/Transducers 2019.
  6. XXXXXXXX GAS IONIZATION PHENOMENA AT NANOWIRE ELECTRODES (Presentation of Communication). Berlin, Germany, Eurosensors/Transducers 2019.
  7. XXXXXXXX A LIGHT-ACTIVATED MICROPOWER GAS SENSOR FOR THE DETECTION OF NO2 DOWN TO THE PARTS PER BILLION (PPB) RANGE (Presentation of Communication). Berlin, Germany, Eurosensors/Transducers 2019.
  8. XXXXXXXX  Advancements in Low-Power High-Specificity Gas Sensors in the Micro and Nano Sensors Group (Presentation of Communication) Tianjin, China, 3rd Jinmen Scholar Forum for International Young Talents, 2018.
  9. XXXXXXXX Ideas for low-power chemical sensors (Presentations of Communication) Stäfa, Austria, Sensirion AG (2018).
  10. XXXXXXXX Ideas for low-power chemical sensors (Presentations of Communication) Institut Matériaux Microélectronique Nanosciences de Provence (IM2NP - CNRS) 20180
  11. XXXXXXXX Gallium oxide nanowires for gas sensing applications: growth, device fabrication and gas response (Presentation of Communication) Boston, USA, Materials Research Society Fall Meeting 2018.
  12. J.D. Prades (Nano)technology for the measurement of gases (Presentation of Communication) Braunschweig, Germany, Nanomet Master, TU (2018).
  13. J.D. Prades  The role of (nano)technology on the measurement of gases (Presentation of Communication) Braunschweig, Germany, Nanomet Master, TU (2017).
  14. O. Casals; N. Markiewicz; C. Fabrega; H. S. Wasisto; A. Waag; J. D. Prades A LED Platform for Micropower Gas Sensors (Presentation of Communication). Graz, Austria, Eurosensors XXXII 2018.
  15. J. Gülink; S. Bornemann; H. Spende; M. Auf der Maur; A. Di Carlo; J. D. Prades; H. S. Wasisto; A. Waag InGaN/GaN nanoLED Arrays As a Novel Illumination Source for Biomedical Imaging and Sensing Applications (Presentation of Communication). Graz, Austria, Eurosensors XXXII 2018.
  16. J. D. Prades, C. Fabrega, O. Casals, F. Hernandez-Ramirez Efficient Self-Heating in Nanowire Sensors: Prospects for Very-Low Power Devices (Presentation of Communication). Graz, Austria, Eurosensors XXXII 2018.
  17. T. Granz; M. Temming; J. Xu; Q. Qomaruddin; C. Fàbrega; N. Majid; G. Lilienkamp; W. Daum; E. Peiner; J. D. Prades; A. Waag; H. S. Wasisto UV-Led Photo Activated Room Temperature NO2 Sensors Based on Nanostructured ZnO/AIN Thin Films (Presentation of Communication). Graz, Austria, Eurosensors XXXII 2018.
  18. I. Benito-Altamirano; P. Pfeiffer; O. Cusola; J. D. Prades Machine-Readable Pattern for Colorimetric Sensor Interrogation (Presentation of Communication). Graz, Austria, Eurosensors XXXII 2018.
  19. G. Scholz; S. Mariana; I. Syamsu; A. B. Dharmawan; T. Schulze; K. Mattern; P. Hörmann; J. Hartmann; A. Dietzel; I. Rustenbeck; K. Hiller; J. D. Prades; H. S. Wasisto; A. Waag Continuous Live-Cell Culture Monitoring by Compact Lensless LED Microscopes (Presentation of Communication). Graz, Austria, Eurosensors XXXII 2018.
  20. N. Markiewicz; O. Casals; M. F. Fatahilah; K. Strempel; A. Gad; H. S. Wasisto; A. Waag; J. D. Prades Top-Down Fabrication of Arrays of Vertical GaN Nanorods with Freestanding Top Contacts for Environmental Exposure (Poster). Graz, Austria, Eurosensors XXXII 2018.
  21. W. Wu; L. Weber; F.-N. Stapelfeldt; P. Hinze; T. Weimann; S. Kroker; B. Bodermann; J. D. Prades; H. S. Wasisto; A. Waag Pixel-Wise Multispectral Sensing System Using Nanostructured Filter Matrix for Biomedical Applications (Poster). Graz, Austria, Eurosensors XXXII 2018.
  22. A. B. Dharmawan; G. Scholz; S. Mariana; P. Hörmann; I. Ardiyanto; S. Wibirama; J. Hartmann; J. D. Prades; K. Hiller; A. Waag; H. S. Wasisto Artificial Neural Networks for Automated Cell Quantification in Lensless LED Imaging Systems (Poster). Graz, Austria, Eurosensors XXXII 2018.
  23. S. Mariana; G. Scholz; F. Yu; A. B. Dharmawan; I. Syamsu; J. D. Prades; A. Waag; H. S. Wasisto Pinhole Micro LED Array As Point Source Illumination for Miniaturized Lensless Cell Monitoring Systems (Poster). Graz, Austria, Eurosensors XXXII 2018.
  24. J. D. Prades; Q. Qomaruddin; C. Fàbrega; A. Waag; A. Šutka; O. Casals; H. S. Wasisto. Visible Light Activated Room Temperature Gas Sensors Based on CaFe2O4 Nanopowders (Poster). Graz, Austria, Eurosensors XXXII 2018.
  25. O. Casals, C. Fabrega, J. D. Prades. Ideas for Specific, Low-Power and Cost-Effective Chemical Sensors (Plenary Speaker). (Invited Conference) Graz, Austria, Eurosensors XXXII 2018.
  26. J. D. Prades. Overcoming the Limits of Diffraction by Super-Resolution Lightning on a Chip - The ChipScope Project. (Invited Conference).  Graz, Austria, Workshop 'European Initiatives for the Next Generation of Nanoscopies in Biosciences' Eurosensors XXXII 2018.
  27. J. D. Prades. DermaSnap: color calibration for dermatology imaging. (Presentation of Communication). New York, USA, Transforming Dermatology Workshop - ISIC.
  28. J. Gülink; K. Strempel; F. Yu; M. F. Fatahilah; S. Mariana; S. Bornemann; T. Granz; N. Markiewicz; J. D. Prades; H. S. Wasisto; A. Waag. Versatile 3D GaN processing for integrated high-aspect-ratio vertical nanodevices.  (Presentation of Communication). Copenhagen, Denmark, MNE 2018.
  29. N. Markiewicz; O. Casals; M. Fatahilah; A.-E. Gad; H. S. Wasisto; A. Waag; J. D. Prades. Arrays of Vertical GaN Nanorods with Freestanding Top Contacts for Local Heating. (Presentation of Communication). Copenhagen, Denmark, MNE 2018.
  30. H. S. Wasisto; J. Gülink; S. Bornemann; G. Scholz; S. Mariana; K. Strempel; M. Auf der Maur; A. di Carlo; J. D. Prades; A. Waag. GaN nano-/microLED arrays for compact lensless microscopes. (Invited Conference). Sheffield, Great Britain, 16th International Symposium on the Science and Technology of Lighting.
  31. J. D. Prades. Towards specific, low-power and cost-effective chemical sensors. (Invited Conference). Webinar, Brindisi, Italy, European Researchers' Night - Notte dei Ricercatori 2018.
  32. J. Gülink; S. Bornemann; H. Spende; S. Mariana; M. F. Fatahilah, M. Auf der Maur; A. Di Carlo; J.D. Prades; H.S. Wasisto; A. Waag. InGaN/GaN nanoLED arrays for bioimaging applications . (Presentation of Communication). Napoli, Italy,  Europt(r)ode XIV.
  33. G. Scholz; I. Syamsu; S. Mariana; T. Schulze; K. Mattern; P. Hoermann; J. Hartmann; J. D. Prades; I. Rustenbeck; A. Dietzel; K. Hiller; H. S. Wasisto; A. Waag. Compact LED-based digital inline-holographic microscope for live-cell identification. (Presentation of Communication). Napoli, Italy,  Europt(r)ode XIV.
  34. J.D.Prades. Efficient self - heating in nanowire sensors: What for and How to (Keynote). ( Invited Conference). Bali, Indonesia, 3rd MRS-ID (Materials Research Society - Indonesia) Meeting.
  35. T.Granz, M.Temming, J.Xu, Qomaruddin, C.Fabrega, N.Yulianto, L.Daul, L.Koenders, K.Triyana, E.Peiner, J.D.Prades, A.Waag,H.S.Wasisto. UV-activated gas sensors using ZnO nanorods grown on AlN/Si substrates. (Presentation of Communication). Bali, Indonesia, 3rd MRS-ID (Materials Research Society - Indonesia) Meeting.
  36. Qomaruddin, C.Fabrega, A.Waag, A.Sutka, O.Casals, H.S.Wasisto, J.D.Prades. Visible - light - activated CaFe2O4 nanopowders for room temperature gas sensors. (Presentation of Communication). Bali, Indonesia, 3rd MRS-ID (Materials Research Society - Indonesia) Meeting.
  37. N.Yulianto, S.Bornemann, J.Gulink, Y.Herbani, S.Mariana, R.P.H.Adji, J.D.Prades, A.Waag, H.S.Wasisto. Selective-area femtosecond laser lift-off processing of GaN LED chips. (Presentation of Communication). Bali, Indonesia, 3rd MRS-ID (Materials Research Society - Indonesia) Meeting.
  38. Samà, J.; Domènech-Gil, G.; Prades, J.D.; Casals Guillen, O.; Hernandez-Ramirez, F.; Moreno, M.; Barth, S.; Romano-Rodriguez, A. Focused Electron- and Focused-Ion Beam Fabrication of Ultra-Low Power Gas Nanosensors Based on Single Metal-Oxide Nanowires. (Presentation of Communication). Boston, USA, MRS fall 2017.
  39. H. S. Wasisto; J. Gülink; S. Mariana; S. Bornemann; N. Yulianto; F. Yu; K. Strempel; M. F. Fatahilah; T. Granz; N. Markiewicz; G. Scholz; I. Syamsu; H. Boht; D. Bezshlyakh; W. Wu; J. Hartmann; H. Zhou; S. Fündling; J. D. Prades; A. Waag. Strategies for Low Power Gas Sensor. (Invited Conference). Warsaw, Poland, European Materials Research Society (eMRS) - Fall Meeting 2017.
  40. T. Granz; S. Mariana; G. Hamdana; F. Yu; A. Gad; M. F. Fatahilah; J. Hartmann; N. Majid; O. Casals; G. Lilienkamp; S. Fündling; E. Peiner; W. Daum; J. D. Prades; A. Waag; H. S. Wasisto. Conductometric gas nanosensors based on sub-100 nm vertical 3D GaN nanopillars. (Presentation of Communication). Strasbourg, France, 12th International Conference on Nitride Semiconductors (ICNS12).
  41. H. Boht; G. Scholz; H. Wichmann; T. Granz; M. F. Fatahilah; J. Hartmann; H. Zhou; S. Fündling; J. D. Prades; U. Schröder; H. S. Wasisto; A. Waag. GaN-based nano-optoelectronic platform for in situ diagnostics of electrochemically active biofilms. (Poster). Strasbourg, France, 12th International Conference on Nitride Semiconductors (ICNS12).
  42. K. Schmitt; K. Tarantik; C. Pannek; I. Benito-Altamirano; O. Casals; C. Fàbrega; A. Romano-Rodríguez; J. Wöllenstein; J.D. Prades. Colorimetric sensor for bad odor detection using automated color correction. (Poster). Barcelona, Spain, SPIE Microtechnologies 2017.
  43. G. Domènech-Gil; I. Peiró Riera; E. López-Aymerich; P. Pellegrino; S. Barth; I. Gràcia; C. Cané; J.D. Prades; M. Moreno-Sereno; A. Romano-Rodriguez. Individual Gallium oxide nanowires for humidity sensing at low temperature. (Poster).Paris, France, Eurosensors 2017.
  44. G. Domènech-Gil; S. Barth; I. Gràcia; C. Cané; J.D. Prades; M. Moreno-Sereno; A. Romano-Rodriguez. Indium oxide octahedral structures based sensor. (Poster).Paris, France, Eurosensors 2017.
  45. H. Boht; H. Wichmann; G. Scholz; F. Yu; K. Strempel; S. Mariana; M. Fatahilah; I. Manglano-Clavero; J. D. Prades; U. Schröder; H. Wasisto; A. Waag. Vertical 3D GaN Nanoarchitectures Towards an Integrated Optoelectronic Biosensing Platform in Microbial Fuel Cells.  (Poster). Paris, France, Eurosensors 2017.
  46. L. Fernandez; A. Pons; O. Monereo; I. Benito-Altamirano; E. Xuriguera; O. Casals; C. Fabrega; A. Waag; J. D. Prades. N O2 Measurements with RGB Sensors for Easy in-Field Test. (Poster). Paris, France, Eurosensors 2017.
  47. T. Granz; S. Mariana; G. Hamdana; F. Yu; M. Fatahilah; I. Manglano Clavero; P. Puranto; Z. Li; U. Brand, J. D. Prades, E. Peiner, A. Waag, H. Wasisto. Nanofabrication of Vertically Aligned 3D GaN Nanowire Arrays with Sub-50 nm Feature Sizes Using Nanosphere Lift-Off Lithography. (Presentation of Communication).  Paris, France, Eurosensors 2017.
  48. I. Gállego; B. Manning; J. D. Prades; M. Mir; J. Samitier; R. Eritja.  DNA-Origami-Aided Lithography for Sub-10 Nanometer Pattern Printing (Presentation of Communication).  Paris, France, Eurosensors 2017.
  49. E. López-Aymerich, G.; Domènech-Gil, M.; Moreno-Sereno, J.; D. Prades; P. Pellegrino; S. Barth; A. Romano-Rodriguez. Gas Sensors Based on Individual (Ga,In)2O3 Nanowires (Presentation of Communication). Paris, France, Eurosensors 2017.
  50. Prades, J.D. Strategies for Low Power Gas Sensor Devices. (Invited Conference). Conferencia de Dispositivos Electronicos 2017, Barcelona, Spain.
  51. Fernandez,L.;Pons,A.;Monereo,O.;Benito- Altamirano ,I.; Xuriguera, E.;Casals, O.; Fabrega, C.; Waag, A.; Prades, J.D. Automated Color Calibration for Handheld Spectroscopy-Applications to Chemical Sensing. (Presentation of Communication)  Materials Research Society 2016 Fall Meeting Boston, USA.
  52. Monereo, O.; Markiewicz, N.; Sama, J.; Casals, O.; Fabrega, C.; Wasisto, H.; Hernandez-Ramirez, F.; Cirera, A.; Romano-Rodriguez, A.; Waag, A.; Prades, J.D. Low-Power Heating and Lighting for Conductimetric Gas Sensors. (Invited Conference) Materials Research Society 2016 Fall Meeting Boston, USA.
  53. Fabrega, C.; Rodrigues, A.; Casals, O.; Markiewicz, N.; Gad, A.; Wasisto, H.; Waag, A.; Prades, J.D. (2016).  SnO2 Functionalized Gas Sensors for Selective Detection of NO2.(Presentation of Communication) Materials Research Society 2016 Fall Meeting Boston, USA.
  54. Monereo, O.; Fàbrega, C.; Casals, O.; Samà, J.; Hernández-Ramírez, F.; Cirera, A.; Romano-Rodriguez, A.; Prades, J.D. (2016) Low-Power Heating for Conductimetric Gas Nano Sensors: Self-Heating Effects. (Invited Conference). EuNetAir Final Workshop. Prague. Czech Republic.
  55. Samà, J.;Domènec-Gil, D.;Gracia, I.; Santander, J.; Cané, C.; Seifner, M.; Prades, J.D.; Barth, S.; Romano-Rodriguez, A. (2016). Site-Selectively grown p-type Ge NWs as a gas sensor. (Presentation of Communication). Eurosensors XXX 2016. Budapest. Hungary.
  56. Prades, J.D. (2016). Self-Heating in Nanowire Sensors: Prospects for Very-Low Power Devices. (Invited Conference). 2nd International Conference on Functional Integrated nano Systems (nanoFIS 2016).  Graz. Austria.
  57. Monereo, O.; Markiewicz, N.; Samà, J.; Casals, O.; Fàbrega, C.;Hernandez-Ramírez, F.; Cirera, A.; Romano-Rodríguez, A.; Waag, A.;Prades, J.D. (2016). Strategies for Low Power Gas Sensor. (Invited conference) . European Materials Research Society (eMRS) - Spring Meeting 2016 . Lille . FRANCE
  58. Prades, J.D. (2016). GaN-based devices for new gas sensor technologies. (Invited conference) . SPIE Photonics West - OPTO 2016 . San Francisco . UNITED STATES
  59. Samà, J.; Barth, S.; Prades, J.D.; Seifner, M.; Casals, O.; Gracia, I.; Santander, J.; Calaza, C.; Fonseca, L.; Cané, C.; Romano-Rodríguez, A. (2015). Ge nanowire-based gas sensor fabricated by localized growth on microhotplates. (Presentation of communication) . 10th Spanish Conference on Electronic Devices . Aranjuez . SPAIN
  60. Samà, J.; Prades, J.D.; Casals, O.; Barth, S.; Santander, J.; Cané, C.; Gracia, I.; Romano-Rodríguez, A. (2015). Zero-power based gas detection systems based on single nanowires: benefits and challenges. (Invited conference) . 4th Scientific Meeting on New Sensing Technologies for Air-Pollution Control and Environmental Sustainability . Linköping . SWEDEN
  61. Samà, J.; Barth, S.; Prades, J.D.; Casals, O.; Hernández-Ramírez, F.; Gracia, I.; Cané, C.; Romano-Rodriguez, A. (2015). Locally grown SnO2 NWs as low power ammonia sensor. (Presentation of communication) . Eurosensors XXIX . Freiburg . GERMANY
  62. Fàbrega, C.; Guilera, J.; Casals, O.; Hernández-Ramirez, F.; Mathur, S.; Udrea, F.; De Luca, A.; Ali, Z.; Romano-Rodriguez, A.; Prades, J.D.; Morante, J.R. Samà, J.; Barth, S.; Prades, J.D.; Casals, O.; Hernández-Ramírez, F.; Gracia, I.; Cané, C.; Romano-Rodriguez, A. (2015). Facile Integration of Ordered Nanowires in Functional Devices. (Presentation of communication) . Eurosensors XXIX . Freiburg . GERMANY
  63. Romano-Rodriguez, A.; Samà, J.; Prades, J.D.; Casals, O.; Barth, S.; Gracia, I.; Cané, C.; Domènech-Gil, G.; Hernández-Ramírez, F. (2015). Low-cost fabrication of zero-power metal oxide nanowire gas sensors: trends and challenges. (Presentation of communication) . Eurosensors XXIX . Freiburg . GERMANY
  64. Hoffmann, M.W.G..; Casals, O.; Gad, A.; Fàbrega, C.; Hernández-Ramirez, F.; Waag, A.; Prades, J.D. (2015). Novel approaches towards highly selective self-powered gas sensors. (Poster) . Eurosensors XXIX . Freiburg . GERMANY
  65. Monereo, O.; Casals, O.; Prades, J.D.; Cirera, A. (2015). A low-cost approach to low-power gas sensors based on self-heating effects in arrays of nanostructures. (Poster) . Eurosensors XXIX . Freiburg . GERMANY
  66. Samà, J.; Seifner, M.; Gracia, I.; Santander, J.; Calaza, C.; Prades, J.D.; Casals, O.; Fonseca, L.; Cané, C.; Barth, S.; Romano-Rodriguez, A. (2015). Ge nanowires: novel gas sensing material locally grown on microhotplates. (Presentation of communication) . Eurosensors XXIX 2015 . Freiburg . GERMANY
  67. Samà, J.; Jiménez-Díaz, R.; Prades, J.D.; Casals, O.; Barth, S.; Hernández-Ramírez, F.; Romano-Rodríguez, A. (2015). Ultra-low power gas nanosensors fabricated from single metal-oxide nanowires. (Poster) . Gas sensors based on semiconducting metal oxides: basic understanding & application fields . Tübingen . GERMANY
  68. Monereo, O.; Prades, J.D.; Cirera, A. (2015). Low-cost, low-power, heater-free solid state gas sensors based on pulsed self-heated nanostructures. (Invited conference) . IEEE Nano 2015 (15th International Conference on Nanotechnology) . Roma . ITALY
  69. Prades, J.D. (2015). Low power gas sensors strategies. (Invited conference) . IX International Workshop on Semiconductor Gas Sensors (SGS'15) . Zakopane . POLAND
  70. Fabrega, C.; Prades, J.D. (2015). Nanomaterial integration for low power gas sensors. (Invited conference) . IX International Workshop on Semiconductor Gas Sensors (SGS'15) . Zakopane . POLAND
  71. Sama, J.; Barth, S.; Prades, J.D.; Casals, O.; Gracia, I.; Cané, C.; Hernández-Ramírez, F.; Romano-Rodriguez, A. (2015). Towards Functional Gas Sensing Devices through Localized-Grown SnO2 Nanowires on CMOS-Compatible Microhotplates. (Presentation of communication). Materials Research Society Fall Meeting 2015. Boston. UNITED STATES
  72. Romano-Rodriguez, A.; Samà, J.; Prades, J.D.; Hernández-Ramírez, F.; Casals, O.; Gracia, I.; Cane, C.; Barth, S. (2015). Nearly zero-power consuming gas sensor devices based on individual metal oxida nanowires. (Presentation of communication). SPIE Microtechnologies. Barcelona. SPAIN
  73. Romano-Rodriguez, A.; Samà, J.; Prades, J.D.; Seifner, M.; Casals, O.; Gracia, I.; Cane, C.; Barth, S. (2015). Novel Ge nanowire-based gas sensor fabricated by localized growth on microhotplates. (Poster) SPIE Microtechnologies. Barcelona. SPAIN
  74. Monereo, O.; Prades, J.D.; Cirera, A. (2015). Self-heated conductometric gas sensor devices: application to large arrays of randomly deposited carbon nanofibers. (Poster) . SURFOCAP'15 INTERNATIONAL WORKSHOP. Agadir. MORROCCO
  75. Prades, J.D. (2015). Towards zero-power highly specific gas sensors. (Invited conference) . SURFOCAP'15 INTERNATIONAL WORKSHOP. Agadir. MORROCCO
  76. Barth, S.; Sama, J.; Seifner, M.; Prades, J.; Gracia, I.; Cane, C.; Romano-Rodriguez, A. (2014). Localized Growth And In-Situ Integration Of Semiconducting Nanowire Bundles By Micro-CVD. (Poster) . 5th EuCheMS Chemistry Congress. Istanbul. TURKEY
  77. Sama, J.; Barth, S.; Prades, J.D.; Seifner, M.; Casals, O.; Gracia, I.; Cane, C.; Santander, J.; Calaza, C.; Fonseca, L.; Romano-Rodriguez, A. (2014). Germanium nanowires: novel gas sensor material. (Presentation of communication) . European Materials Research Society (EMRS) – Spring Meeting 2014. Lille. FRANCE
  78. Sama, J.; Barth, S.; Prades, J.D.; Casals, O.; Gracia, I.; Cane, C.; Romano-Rodriguez, A. (2014). Localized growth of SnO2 nanowires for environmental monitoring. (Poster). European Materials Research Society (EMRS) – Spring Meeting 2014. Lille. FRANCE
  79. Romano-Rodriguez, A.; Sama, J.; Prades, J.D.; Casals, O.; Hernandez-Ramirez, F.; Barth, S. (2014). Ultralow power gas sensor based on SnO2 selfheated nanowire. (Poster). European Materials Research Society (EMRS) – Spring Meeting 2014. Lille. FRANCE
  80. Samà, J.; Barth, S.; Prades, J.D.; Seifner, M.; Casals, O.; Gracia, I.; Santander, J.; Calaza, C.; Fonseca, L.; Cané, C.; Romano-Rodríguez, A. (2014). Novel Gas Sensors Based on Germanium Nanowires. (Presentation of communication) . Materials Research Society Fall Meeting 2014 . Boston . UNITED STATES.
  81. Gaad, A.; Hoffmann, M.W.G.; Mayrhofer, L.; Casals, O.; Caccamo, L.; Hernandez-Ramirez, F.; Lilienkamp, G.; Daum, W.; Moseler, M.; Waag, A.; Shen, H.; and Prades, J.D. (2014). Self-Powered Solar Diode Gas Sensors.(Presentation of communication) . Materials Research Society Fall Meeting 2014 . Boston . UNITED STATES.
  82. Gaad, A.; Hoffmann, M.W.G.; Mayrhofer, L.; Casals, O.; Caccamo, L.; Hernandez-Ramirez, F.; Lilienkamp, G.; Daum, W.; Moseler, M.; Waag, A.; Shen, H.; and Prades, J.D. (2014). Highly selective hybrid gas senors: novel approaches and future developments.(Presentation of communication) . Materials Research Society Fall Meeting 2014 . Boston . UNITED STATES.

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