J. Semicond. > 2012, Volume 33 > Issue 9 > 094002

SEMICONDUCTOR DEVICES

Influence of thermal treatment temperatures on CdTe nanocrystal films and photoelectric properties of ITO/CdTe/Al

Xu Wenqing, Qu Shengchun, Wang Kefan, Bi Yu, Liu Kong and Wang Zhanguo

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DOI: 10.1088/1674-4926/33/9/094002

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Abstract: The influence of sintering temperatures on solution-processed cadmium telluride (CdTe) nanocrystal films is studied in order to maximize the performance of CdTe/Al Schottky nanocrystal solar cells. The best overall performance of 2.67% efficiency at air mass 1.5 was achieved from devices with CdTe films sintered at 350 ℃ X-ray diffraction, scanning electron microscopy and UV-vis absorption measurements show that the CdTe nanocrystal grains began to grow remarkably well when sintering temperatures increased to 350 ℃. By analyzing the current-voltage characteristics, we find that the short-circuit current densities of devices increase with sintering temperatures ranging from 200 to 400 ℃, but, the over-sintered (450 ℃) treatment induces the shunting of devices.

Key words: solar cells

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    Received: 20 August 2015 Revised: 16 April 2012 Online: Published: 01 September 2012

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      Xu Wenqing, Qu Shengchun, Wang Kefan, Bi Yu, Liu Kong, Wang Zhanguo. Influence of thermal treatment temperatures on CdTe nanocrystal films and photoelectric properties of ITO/CdTe/Al[J]. Journal of Semiconductors, 2012, 33(9): 094002. doi: 10.1088/1674-4926/33/9/094002 ****Xu W Q, Qu S C, Wang K F, Bi Y, Liu K, Wang Z G. Influence of thermal treatment temperatures on CdTe nanocrystal films and photoelectric properties of ITO/CdTe/Al[J]. J. Semicond., 2012, 33(9): 094002. doi: 10.1088/1674-4926/33/9/094002.
      Citation:
      Xu Wenqing, Qu Shengchun, Wang Kefan, Bi Yu, Liu Kong, Wang Zhanguo. Influence of thermal treatment temperatures on CdTe nanocrystal films and photoelectric properties of ITO/CdTe/Al[J]. Journal of Semiconductors, 2012, 33(9): 094002. doi: 10.1088/1674-4926/33/9/094002 ****
      Xu W Q, Qu S C, Wang K F, Bi Y, Liu K, Wang Z G. Influence of thermal treatment temperatures on CdTe nanocrystal films and photoelectric properties of ITO/CdTe/Al[J]. J. Semicond., 2012, 33(9): 094002. doi: 10.1088/1674-4926/33/9/094002.

      Influence of thermal treatment temperatures on CdTe nanocrystal films and photoelectric properties of ITO/CdTe/Al

      DOI: 10.1088/1674-4926/33/9/094002
      Funds:

      The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)

      The National Basic Research Program of China (973 Program)

      • Received Date: 2015-08-20
      • Accepted Date: 2012-03-26
      • Revised Date: 2012-04-16
      • Published Date: 2012-08-21

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