Open AccessA NEW METHOD OF SURFACE PASSIVATION FOR MERCURY CADMIUM TELLURIDE
Author(s) -
Haimei Gong,
Yanjin Li,
Fang Jia-Xiong
Publication year - 1997
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.46.1400
Subject(s) - passivation , mercury cadmium telluride , cadmium telluride photovoltaics , materials science , anodic oxidation , mercury (programming language) , photoconductivity , cadmium , optoelectronics , anode , analytical chemistry (journal) , electrode , optics , metallurgy , nanotechnology , chemistry , computer science , environmental chemistry , physics , layer (electronics) , infrared , programming language
We have developed a new method of passivating the surfaces of mercury cadmium telluride (MCT) by growing anodic oxidation films in a pulse mode. A novel equipment of pulse anodic oxidation was designed and developed successfully. The interface obtained by this method was superior to that grown by the traditional constant current. The influence of pulse oxidation on MCT surface was investigated by means of SEM, AES and photoconductivity decay. The optimum pulse oxidation condition to reduce the surface recombination velocities has been investigated. The mechanism of the growth of pulse oxidation film is analyzed and discussed.