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Photogating Effect-Driven Photodetectors and Their Emerging Applications
Rather than generating a photocurrent through photo-excited carriers by the photoelectric effect, the photogating effect enables us to detect sub-bandgap rays. The photogating effect is caused by trapped photo-induced charges that modulate the potential energy of the semiconductor/dielectric interfa...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10005329/ https://www.ncbi.nlm.nih.gov/pubmed/36903759 http://dx.doi.org/10.3390/nano13050882 |
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author | Shin, Jihyun Yoo, Hocheon |
author_facet | Shin, Jihyun Yoo, Hocheon |
author_sort | Shin, Jihyun |
collection | PubMed |
description | Rather than generating a photocurrent through photo-excited carriers by the photoelectric effect, the photogating effect enables us to detect sub-bandgap rays. The photogating effect is caused by trapped photo-induced charges that modulate the potential energy of the semiconductor/dielectric interface, where these trapped charges contribute an additional electrical gating-field, resulting in a shift in the threshold voltage. This approach clearly separates the drain current in dark versus bright exposures. In this review, we discuss the photogating effect-driven photodetectors with respect to emerging optoelectrical materials, device structures, and mechanisms. Representative examples that reported the photogating effect-based sub-bandgap photodetection are revisited. Furthermore, emerging applications using these photogating effects are highlighted. The potential and challenging aspects of next-generation photodetector devices are presented with an emphasis on the photogating effect. |
format | Online Article Text |
id | pubmed-10005329 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-100053292023-03-11 Photogating Effect-Driven Photodetectors and Their Emerging Applications Shin, Jihyun Yoo, Hocheon Nanomaterials (Basel) Review Rather than generating a photocurrent through photo-excited carriers by the photoelectric effect, the photogating effect enables us to detect sub-bandgap rays. The photogating effect is caused by trapped photo-induced charges that modulate the potential energy of the semiconductor/dielectric interface, where these trapped charges contribute an additional electrical gating-field, resulting in a shift in the threshold voltage. This approach clearly separates the drain current in dark versus bright exposures. In this review, we discuss the photogating effect-driven photodetectors with respect to emerging optoelectrical materials, device structures, and mechanisms. Representative examples that reported the photogating effect-based sub-bandgap photodetection are revisited. Furthermore, emerging applications using these photogating effects are highlighted. The potential and challenging aspects of next-generation photodetector devices are presented with an emphasis on the photogating effect. MDPI 2023-02-26 /pmc/articles/PMC10005329/ /pubmed/36903759 http://dx.doi.org/10.3390/nano13050882 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Review Shin, Jihyun Yoo, Hocheon Photogating Effect-Driven Photodetectors and Their Emerging Applications |
title | Photogating Effect-Driven Photodetectors and Their Emerging Applications |
title_full | Photogating Effect-Driven Photodetectors and Their Emerging Applications |
title_fullStr | Photogating Effect-Driven Photodetectors and Their Emerging Applications |
title_full_unstemmed | Photogating Effect-Driven Photodetectors and Their Emerging Applications |
title_short | Photogating Effect-Driven Photodetectors and Their Emerging Applications |
title_sort | photogating effect-driven photodetectors and their emerging applications |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10005329/ https://www.ncbi.nlm.nih.gov/pubmed/36903759 http://dx.doi.org/10.3390/nano13050882 |
work_keys_str_mv | AT shinjihyun photogatingeffectdrivenphotodetectorsandtheiremergingapplications AT yoohocheon photogatingeffectdrivenphotodetectorsandtheiremergingapplications |