SEMICONDUCTOR MATERIALS

Photoelectric conversion characteristics of ZnO/SiC/Si heterojunctions

Wu Xiaopeng, Chen Xiaoqing, Sun Lijie, Mao Shun and Fu Zhuxi

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Abstract: A series of n-ZnO/n-SiC/p-Si and n-ZnO/p-Si heterojunctions were prepared by DC sputtering. Their structural properties, IV curves, photovoltaic effects and photo-response spectra were studied. The photoelectric conversion characteristics of n-ZnO/n-SiC/p-Si and n-ZnO/p-Si heterojunctions were investigated. It is found that the photoelectric conversion efficiency of the n-ZnO/n-SiC/p-Si heterojunction is about four times higher than that of the n-ZnO/p-Si heterojunction. The photovoltaic response spectrum indicated that the photoresponse curve of n-ZnO/n-SiC/p-Si increased more strongly than that of n-ZnO/p-Si with the wavelength increasing. It shows that the photoresponse of n-ZnO/p-Si can be enhanced when inserting a 3C-SiC layer between ZnO and Si. There is one inflexion in the photocurrent response curve of the n-ZnO/p-Si heterojunction and two inflexions in that of the n-ZnO/n-SiC/p-Si heterojunction. It is clear that the 3C-SiC plays an important role in the photoelectric conversion of the n-ZnO/n-SiC/p-Si heterojunction.

Key words: ZnO/SiC/Si heterojunction

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    Received: 18 August 2015 Revised: 09 June 2010 Online: Published: 01 October 2010

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      Wu Xiaopeng, Chen Xiaoqing, Sun Lijie, Mao Shun, Fu Zhuxi. Photoelectric conversion characteristics of ZnO/SiC/Si heterojunctions[J]. Journal of Semiconductors, 2010, 31(10): 103002. doi: 10.1088/1674-4926/31/10/103002 Wu X P, Chen X Q, Sun L J, Mao S, Fu Z X. Photoelectric conversion characteristics of ZnO/SiC/Si heterojunctions[J]. J. Semicond., 2010, 31(10): 103002. doi:  10.1088/1674-4926/31/10/103002.Export: BibTex EndNote
      Citation:
      Wu Xiaopeng, Chen Xiaoqing, Sun Lijie, Mao Shun, Fu Zhuxi. Photoelectric conversion characteristics of ZnO/SiC/Si heterojunctions[J]. Journal of Semiconductors, 2010, 31(10): 103002. doi: 10.1088/1674-4926/31/10/103002

      Wu X P, Chen X Q, Sun L J, Mao S, Fu Z X. Photoelectric conversion characteristics of ZnO/SiC/Si heterojunctions[J]. J. Semicond., 2010, 31(10): 103002. doi:  10.1088/1674-4926/31/10/103002.
      Export: BibTex EndNote

      Photoelectric conversion characteristics of ZnO/SiC/Si heterojunctions

      doi: 10.1088/1674-4926/31/10/103002
      • Received Date: 2015-08-18
      • Accepted Date: 2010-05-10
      • Revised Date: 2010-06-09
      • Published Date: 2010-10-05

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