CDTE AND CDZNTE CRYSTAL-GROWTH BY HORIZONTAL BRIDGMAN TECHNIQUE

被引:78
作者
CHEUVART, P
ELHANANI, U
SCHNEIDER, D
TRIBOULET, R
机构
[1] Laboratoire de Physique du Solide de Bellevue, CNRS, F-92195 Meudon Cedex
关键词
D O I
10.1016/0022-0248(90)90980-Y
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
By means of the horizontal modified Bridgman technique, CdTe and CdZnTe crystals have been grown. The conditions of synthesis have been described and a modified gradient freeze technique has been experimented and proposed. By modifying the transverse gradient, nature of the boat, gas overpressure and temperature cycles, different growths have been compared. A computerized power recording was found to be extremely sensitive in spotting any thermal accidents. With an optimization of these different factors, we have obtained large single crystals: they gave (111) substrates up to 28 cm2. A new and fast optical technique with a He-Ne laser has been used for studying all orientation parameters. The substrates have been characterized by double X-ray diffraction, photoluminescence and electrical measurements. © 1989.
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页码:270 / 274
页数:5
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