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A photovoltaic self-powered gas sensor based on a single-walled carbon nanotube/Si heterojunction
1i -Lab Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences Ruoshui Road, Suzhou 215123, China. tzhang2009@sinano.ac.cn.
Nanoscale
|August 30, 2017
Abstract:
We present a novel photovoltaic self-powered gas sensor based on a p-type single-walled carbon nanotube (SWNT) and n-type silicon (n-Si) heterojunction. The energy from visible light suffices to drive the device owing to a built-in electric field (BEF) induced by the differences between the Fermi levels of SWNTs and n-Si.

