ZnO-Based Ultraviolet Photodetectors

Ultraviolet (UV) photodetection has drawn a great deal of attention in recent years due to a wide range of civil and military applications. Because of its wide band gap, low cost, strong radiation hardness and high chemical stability, ZnO are regarded as one of the most promising candidates for UV p...

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Main Authors: Masakazu Aono, Makoto Sakurai, Kewei Liu
Format: Article
Language:English
Published: MDPI AG 2010-09-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/10/9/8604/
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author Masakazu Aono
Makoto Sakurai
Kewei Liu
author_facet Masakazu Aono
Makoto Sakurai
Kewei Liu
author_sort Masakazu Aono
collection DOAJ
description Ultraviolet (UV) photodetection has drawn a great deal of attention in recent years due to a wide range of civil and military applications. Because of its wide band gap, low cost, strong radiation hardness and high chemical stability, ZnO are regarded as one of the most promising candidates for UV photodetectors. Additionally, doping in ZnO with Mg elements can adjust the bandgap largely and make it feasible to prepare UV photodetectors with different cut-off wavelengths. ZnO-based photoconductors, Schottky photodiodes, metal–semiconductor–metal photodiodes and p–n junction photodetectors have been developed. In this work, it mainly focuses on the ZnO and ZnMgO films photodetectors. We analyze the performance of ZnO-based photodetectors, discussing recent achievements, and comparing the characteristics of the various photodetector structures developed to date.
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spelling doaj.art-bc562d0953a34ca485f6eba82c15910a2022-12-22T02:53:37ZengMDPI AGSensors1424-82202010-09-011098604863410.3390/s100908604ZnO-Based Ultraviolet PhotodetectorsMasakazu AonoMakoto SakuraiKewei LiuUltraviolet (UV) photodetection has drawn a great deal of attention in recent years due to a wide range of civil and military applications. Because of its wide band gap, low cost, strong radiation hardness and high chemical stability, ZnO are regarded as one of the most promising candidates for UV photodetectors. Additionally, doping in ZnO with Mg elements can adjust the bandgap largely and make it feasible to prepare UV photodetectors with different cut-off wavelengths. ZnO-based photoconductors, Schottky photodiodes, metal–semiconductor–metal photodiodes and p–n junction photodetectors have been developed. In this work, it mainly focuses on the ZnO and ZnMgO films photodetectors. We analyze the performance of ZnO-based photodetectors, discussing recent achievements, and comparing the characteristics of the various photodetector structures developed to date.http://www.mdpi.com/1424-8220/10/9/8604/ZnOphotodetectorMSMp-n junctionSchottkyresponse
spellingShingle Masakazu Aono
Makoto Sakurai
Kewei Liu
ZnO-Based Ultraviolet Photodetectors
Sensors
ZnO
photodetector
MSM
p-n junction
Schottky
response
title ZnO-Based Ultraviolet Photodetectors
title_full ZnO-Based Ultraviolet Photodetectors
title_fullStr ZnO-Based Ultraviolet Photodetectors
title_full_unstemmed ZnO-Based Ultraviolet Photodetectors
title_short ZnO-Based Ultraviolet Photodetectors
title_sort zno based ultraviolet photodetectors
topic ZnO
photodetector
MSM
p-n junction
Schottky
response
url http://www.mdpi.com/1424-8220/10/9/8604/
work_keys_str_mv AT masakazuaono znobasedultravioletphotodetectors
AT makotosakurai znobasedultravioletphotodetectors
AT keweiliu znobasedultravioletphotodetectors