PEDOT:PSS Schottky contacts on annealed ZnO films

Polycrystalline ZnO and ITO films on SiO2 substrates are prepared by radio frequency (RF) reactive magnetron sputtering. Schottky contacts are fabricated on ZnO films by spin coating with a high conducting polymer, poly(3, 4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) as the metal el...

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Published inChinese physics B Vol. 20; no. 4; pp. 442 - 445
Main Author 朱亚彬 胡伟 纳杰 何帆 周岳亮 陈聪
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.04.2011
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ISSN1674-1056
2058-3834
DOI10.1088/1674-1056/20/4/047301

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Abstract Polycrystalline ZnO and ITO films on SiO2 substrates are prepared by radio frequency (RF) reactive magnetron sputtering. Schottky contacts are fabricated on ZnO films by spin coating with a high conducting polymer, poly(3, 4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) as the metal electrodes. The current-voltage mea- surements for samples on unannealed ZnO films exhibit rectifying behaviours with a barrier height of 0.72 eV (n --- 1.93). The current for the sample is improved by two orders of magnitude at 1 V after annealing ZnO film at 850 ~C, whose barrier height is 0.75 eV with an ideality factor of 1.12. X-ray diffraction, atomic force microscopy and scanning electron microscopy are used to study the properties of the PEDOT:PSS/ZnO/ITO/SiO2. The results are useful for applications such as metal-semiconductor field-effect transistors and UV photodetectors.
AbstractList Polycrystalline ZnO and ITO films on SiO2 substrates are prepared by radio frequency (RF) reactive magnetron sputtering. Schottky contacts are fabricated on ZnO films by spin coating with a high conducting polymer, poly(3, 4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) as the metal electrodes. The current-voltage mea- surements for samples on unannealed ZnO films exhibit rectifying behaviours with a barrier height of 0.72 eV (n --- 1.93). The current for the sample is improved by two orders of magnitude at 1 V after annealing ZnO film at 850 ~C, whose barrier height is 0.75 eV with an ideality factor of 1.12. X-ray diffraction, atomic force microscopy and scanning electron microscopy are used to study the properties of the PEDOT:PSS/ZnO/ITO/SiO2. The results are useful for applications such as metal-semiconductor field-effect transistors and UV photodetectors.
Author 朱亚彬 胡伟 纳杰 何帆 周岳亮 陈聪
AuthorAffiliation School of Science, Beijing Jiaotong University, Beijing 100044, China Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
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Snippet Polycrystalline ZnO and ITO films on SiO2 substrates are prepared by radio frequency (RF) reactive magnetron sputtering. Schottky contacts are fabricated on...
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StartPage 442
SubjectTerms PEDOT
PSS
ZnO薄膜
扫描电子显微镜
氧化锌薄膜
肖特基接触
金属氧化物半导体场效应晶体管
Title PEDOT:PSS Schottky contacts on annealed ZnO films
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