Photoacoustic studies of Cd1-xBexSe mixed crystals

被引：2
|
作者：
Zakrzewski, J
Pawlak, M
Firszt, F
Legowski, S
Marasek, A
Meczynska, H
Malinski, M
机构：
[1] Nicholas Copernicus Univ, Inst Fizyki, PL-87100 Torun, Poland
[2] Inst Elekt Koszalin, PL-75411 Koszalin, Poland
来源：
INTERNATIONAL JOURNAL OF THERMOPHYSICS | 2005年 / 26卷 / 01期
关键词：
mixed crystals; piezoelectric detection; semiconductors;
D O I：
10.1007/s10765-005-2378-7
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This paper reports the results of photoacoustic measurements of Cd1-xBexSe mixed crystals grown by the high pressure Bridgman method with varying concentrations of Be (0.1 < x < 0.2). For examining continuous wave photoacoustic spectra, a piezoelectric transducer (PZT) and an open cell were Used. An increase of the energy gap with increasing x has been observed. The thermal diffusivity values were estimated using the dependence of the amplitude and phase of the PA signal on the light modulation frequency.
引用
收藏
页码：285 / 293
页数：9
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