PHOTOLUMINESCENCE OF CHLORINE-DOPED CdTe CRYSTALS.

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作者：
Shoji, Tadayoshi
Ohba, Katsuhiko
Ito, Susumu
Hiratate, Yukio
机构：
来源：
Tohoku Kogyo Daigaku Kiyo, 1: Rikogakuhen | 1987年 / 07期
关键词：
CRYSTALS; -; Growing; PHOTOLUMINESCENCE;
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摘要：
Four kinds of CdTe crystals compensated with chlorine are grown by Bridgman method. High electrical resistivity of about 10**9 OMEGA cm is obtained for the doped sample of 220 ppm chlorine. From the photoluminescence (PL) measurements, the broad emission is observed at 1. 554 ev, possibly being related to Cl atoms. The emission intensity of 1. 554 ev is decreased gradually with increasing temperature from 12. 5 K to 30 K. On the other hand, the emission intensity of 1. 562 ev is increased at the same temperature range. It is estimated from temperature characteristics that the 1. 554 ev and 1. 562 ev line are donor-acceptor pair transitions and free to bound transitions, respectively.
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页码：155 / 159
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