Preparation of Ni/Zn and NiO/ZnO heterojunction nanowires and their optoelectrical characteristics

Wei Chih Tsai, Shui Jinn Wang, Chih Ren Tseng, Rong Ming Ko, Jia Chuan Lin

研究成果: Conference contribution

8 引文 斯高帕斯(Scopus)

摘要

In this study, well-ordered and vertically-aligned metal (nickel (Ni)/zinc (Zn)) and metal oxides (NiO/ZnO) nano heterojunctions (NHJs) were grown inside the nanopores of anodic aluminum oxide template (AAOT) using electrochemical deposition (ECD) and thermal oxidization. The prepared NHJs are with a controllable length and diameter. The electrical properties of NiO/ZnO NHJs show a rectifying behavior of a p-n junction, while the Ni/Zn NHJs show an ohmic behavior. The optoelectronic characteristics demonstrate that the NiO/ZnO NHJs have fairly good sensitivity and response to the ultraviolet (UV) light (366 nm) with decrease in Vth by about 75% and an increase in Jr by about 80% @ 6 mW/cm2. The low dimension of NHJs shows profound quantum confinement effect, which would be potential applications on nano integrated photonics, such as photodetectors, optical sensors and biosensors.

原文English
主出版物標題Optical Sensors 2009
DOIs
出版狀態Published - 2009 十月 22
事件Optical Sensors 2009 - Prague, Czech Republic
持續時間: 2009 四月 202009 四月 22

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
7356
ISSN(列印)0277-786X

Other

OtherOptical Sensors 2009
國家Czech Republic
城市Prague
期間09-04-2009-04-22

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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