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罗炳威,刘大博,邓元,罗飞,田野,周海涛,陈冬生.CdS量子点/CdTe纳米棒光电极制备及其光电性能研究[J].稀有金属材料与工程(英文),2018,47(10):3173~3178.[Luo Bingwei,Lui Dabo,Deng Yuan,Luo Fei,Tian Ye,Zhou Haitao and Chen Dongsheng.The photoelectrode of CdS QDs/CdTe NRAs preparation and the photoelectric property[J].Rare Metal Materials and Engineering,2018,47(10):3173~3178.]
The photoelectrode of CdS QDs/CdTe NRAs preparation and the photoelectric property
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Received:December 26, 2016  Revised:May 02, 2017
DOI:
Key words: CdTe  CdS  nanodots  nanorod  photoelectric property
Foundation item:国家自然科学(51602299、51302255)、国家自然科学基金重点项目 (61534001)、国家基础研究重点发展计划(2012CB933200)
Author NameAffiliation
Luo Bingwei,Lui Dabo,Deng Yuan,Luo Fei,Tian Ye,Zhou Haitao and Chen Dongsheng  
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Abstract:
      In this paper, the photoelectrode of CdS QDs/CdTe NRAs are prepared by using chemical deposition for CdS and RF sputtering for CdTe. The achieved samples are investigated by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), uv-vis absorption spectroscopy (UV vis) and optical electrode electrochemical workstation, respectively. The SEM results confirm that the photoelectrode is consisted of CdS quantum dots and CdTe nanorods. The XRD results showed that CdTe nanorods grow along the preferred orientation of (111) direction. The novel pyroelectric phenomenon is found in the photoelectrode. The best results are achieved in the photoelectrode with 25 cycle CdS QDs, and the open circuit voltage and the short-circuit current is 0.49 V and 71.09 μA, respectively. The photoelectric ratio between the on and off is six. We also found the current reverse phenomenon caused by the pyroelectric property, and it has the important significance for improving photoelectric device performance.