Solar-irradiation photodetectors based on ZnO nanoparticles with gold and indium electrodes

Yow Jon Lin, Yao Ming Chen, Hsing Cheng Chang, Ya Hui Chen

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The optoelectronic properties of the In/ZnO nanoparticles/In and Au/ZnO nanoparticles/Au devices under illumination by sunlight are determined. ZnO nanoparticles were prepared by the sol–gel method. It is shown that the value of photosensitivity for Au/ZnO nanoparticles/Au devices is larger than the value of photosensitivity for In/ZnO nanoparticles/In devices. This is because of the formation of the depletion region at the Au/ZnO interfaces. In order to understand the relationship between the visible-emission absorption and photosensitivity, sub-gap state generation is used to describe the mechanism for the sensitivity of ZnO nanoparticles to solar irradiation. A direct link between the sensitivity to solar irradiation, oxygen vacancies and the photo-response time is established.

Original languageEnglish
Pages (from-to)61-67
Number of pages7
JournalOptik
Volume142
DOIs
Publication statusPublished - 2017 Aug

Fingerprint

Indium
Photodetectors
Gold
indium
photometers
Irradiation
gold
Nanoparticles
nanoparticles
Electrodes
irradiation
Photosensitivity
electrodes
photosensitivity
sensitivity
Oxygen vacancies
sunlight
Optoelectronic devices
depletion
Lighting

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

Lin, Yow Jon ; Chen, Yao Ming ; Chang, Hsing Cheng ; Chen, Ya Hui. / Solar-irradiation photodetectors based on ZnO nanoparticles with gold and indium electrodes. In: Optik. 2017 ; Vol. 142. pp. 61-67.
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Solar-irradiation photodetectors based on ZnO nanoparticles with gold and indium electrodes. / Lin, Yow Jon; Chen, Yao Ming; Chang, Hsing Cheng; Chen, Ya Hui.

In: Optik, Vol. 142, 08.2017, p. 61-67.

Research output: Contribution to journalArticle

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