高等学校化学学报

高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (3): 406.

• 论文 • 上一篇    下一篇

电沉积多晶CdTe薄膜结构的电镜研究

郭清松1, 张力2   

  1. 1. 内蒙古大学化学系, 010021;
    2. 内蒙古科学技术委员会测试中心
  • 收稿日期:1989-09-22 出版日期:1991-03-24 发布日期:1991-03-24
  • 通讯作者: 郭清松

EM Study on Polycrystalline CdTe Electrodeposited Thin-Film

Guo Qing-song1, Zhang Li2   

  1. 1. Department of Chemistry Inner Mongolia University, Huhehaote, 010021;
    2. Service Centre of Test, Science Committee of Inner Mongolia, Huhehaote
  • Received:1989-09-22 Online:1991-03-24 Published:1991-03-24

PDF (PC)

摘要： CdTe(能隙Eg=1.45eV)是一种制作太阳电池的理想半导体村料。用阴极电沉积法制备多晶CdTe薄膜具有方法简单、周期短、材料费用低于单晶硅而接近非晶硅等优点,颇引人注目。

关键词: 电沉积, 阴极极化, 晶体, 孪晶

Abstract: Astudy of micro-structural marphologies of CdTe thin-film from different technological processes is carried out with SEMand TEM. The change of crystal during the deposing processes was observed, and a comment for mechanism of crystal growth is given. The preliminary results are; (1) Both anode, change of electrolyte composition and rectification of electrodeposited current can possibly decrease the cathodic polarization of CdTe electrodeposited processes. So the surface of 3#CdTe film has a closer texture than that of 1#and 2#; (2) The crystallite size of 3#deposited from electrolyte Bafter annealing in argon and heating in air can be increased to 0. 4-0. 5μm; (3) It is found that CdTe twin crystal exists in the CdTe polycrystallites from the cathodic deposition after annealing in argon and heating in air. The close texture, big crystal and twins-are very advantageous for the improvement of solar-cell.

Key words: Electrodeposition, Cathodic polarization, Crystal, Twin

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