A study of ZnO/PEDOT:PSS based UV sensors with RF sputter

ZnO is an abundant material with a broad band gap energy (3.37 eV), large exciton binding energy (60 mV at room temperature), excellent optical and electrical properties, excellent chemical and thermal stability, and high radiation intensity. ZnO has attracted significant attention due to its excell...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 58; no. SD; p. SDDE09
Main Authors Shin, Seong Gwan, Hur, Jaehyun, Choi, Hyung Wook
Format Journal Article
LanguageEnglish
Published Tokyo IOP Publishing 01.06.2019
Japanese Journal of Applied Physics
Subjects
Electrical properties
Energy gap
Excitons
Irradiation
Magnetron sputtering
Optical properties
Organic chemistry
Photovoltaic cells
Radio frequency
Spin coating
Substrates
Thermal stability
Thin films
Ultraviolet radiation
Zinc oxide
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Summary:ZnO is an abundant material with a broad band gap energy (3.37 eV), large exciton binding energy (60 mV at room temperature), excellent optical and electrical properties, excellent chemical and thermal stability, and high radiation intensity. ZnO has attracted significant attention due to its excellent optical and electrical properties among conductive thin film materials. Previous studies have shown that films deposited using radio-frequency (RF) magnetron sputtering exhibit good crystallinity and microstructural uniformity even at low substrate temperatures. In this study, a simple ultraviolet (UV) sensor based on ZnO/polymer is demonstrated. ZnO was deposited on a soda lime substrate by spray coating, spin coating and RF sputtering. Subsequently, PEDOT:PSS was coated to compare the sensitivity and reactivity under UV irradiation. Samples prepared via RF sputtering showed excellent properties under UV irradiation.
Bibliography:JJAP-s100395
ISSN:0021-4922
1347-4065
DOI:10.7567/1347-4065/ab0ff3