A highly selective and self-powered gas sensor via organic surface functionalization of p-Si/n-ZnO diodes
Martin W G Hoffmann1, Leonhard Mayrhofer, Olga Casals
1Institute of Semiconductor Technology, Technische Universität Braunschweig, 38106, Braunschweig, Germany; Department of Electronics, University of Barcelona, 08028, Barcelona, Spain; Laboratory for Emerging Nanometrology, Technische Universität Braunschweig, 38106, Braunschweig, Germany.
Abstract:
Selectivity and low power consumption are major challenges in the development of sophisticated gas sensor devices. A sensor system is presented that unifies selective sensor-gas interactions and energy-harvesting properties, using defined organic-inorganic hybrid materials. Simulations of chemical-binding interactions and the consequent electronic surface modulation give more insight into the complex sensing mechanism of selective gas detection.
