A photovoltaic self-powered gas sensor based on a single-walled carbon nanotube/Si heterojunction

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 le...

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Bibliographic Details
Published in:Nanoscale 2017-01, Vol.9 (47), p.18579-18583
Main Authors: Liu, L, Li, G H, Wang, Y, Wang, Y Y, Li, T, Zhang, T, Qin, S J
Format: Article
Language:English
Subjects:
Electric fields
Gas sensors
Heterojunctions
Nanotubes
Silicon
Single wall carbon nanotubes
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Summary: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.
ISSN:2040-3364
2040-3372
DOI:10.1039/c7nr02590d