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Cd1-xMnxTe晶体衬底的红外透过性能

Keywords: 晶体生长,碲镉汞外延衬底,吸收边,红外透过率,退火

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Abstract:

研究了生长态和退火后Cd1-xMnxTe晶片的吸收边和红外透过性能.Cd1-xMnxTe晶体采用垂直Bridgman法生长,获得面积为30mm×40mm的(111)面Cd1-xMnxTe单晶片;晶片在Cd气氛下退火.近红外光谱表明,吸收边的截止波长反映晶片的Mn含量范围为0.1887≤x≤0.2039,其中轴向成分波动差值约为0.0152,径向成分波动差值约为0.0013;x=0.2的Cd1-xMnxTe晶体吸收边的吸收系数变化范围为2.5~55cm-1;退火后,晶体的吸收边位置没有变化,表明晶片中Mn含量未受到退火的影响.傅里叶变换红外透射光谱表明,晶片在红外光波数为4000~500cm-1范围的红外透过率为45%~55%;退火后,晶片的红外透过率提高到61%以上,接近理论值65%.

References

[1]  Rogalski A. Infrared detectors: status and trends [J]. Progress in Quantum Electronics, 2003, 27:59-210.
[2]  CHU Jun-Hao. Physics and properties of narrow gap semiconductors [M]. Beijing: Science and Technology Press (褚君浩. 窄禁带半导体物理学. 北京: 科学技术出版社), 2005: 6-100.
[3]  TANG Ding-Yuan, TONG Fei-Ming. Narrow gap semiconductors infrared detectors [M]. Beijing: Science Press (汤定元, 童斐明. 窄禁带半导体红外探测器. 北京: 科学出版社), 1991: 11-78.
[4]  Donald A R, Stuart H, James C, et al. Third generation imaging sensor system concepts [J]. SPIE, 1999, 3701:108-117.
[5]  YANG Jian-Rong, ZHANG Chuan-Jie, FANG Wei-Zheng, et al. Te-rich dipping technique of HgCdTe liquid phase epitaxy [J]. Journal of Infrared and Millimeter Waves (杨建荣, 张传杰, 方维政, 等. 碲镉汞富碲垂直液相外延技术. 红外与毫米波学报), 2009, 28(5): 325-309.
[6]  Triboulet R, Heurtel A. and Rioux J. Twin-free (Cd, Mn)Te substrates [J]. Journal of Crystal Growth, 1990, 101: 131-134.
[7]  LI Guo-Qiang, JIE Wan-Qi, HUA Hui. Deducing the properties of CdZnTe wafers by IR transmission [J]. Journal of Infrared and Millimeter Waves (李国强, 介万奇, 华慧. 根据红外透过率推断CdZnTe晶片的性能. 红外与毫米波学报), 2003, 22(6): 469-472.
[8]  Maxey C D, Gower J E, Capper P, et al. Zn concentration determination in CdZnTe by NIR spectroscopy [J]. Journal of Crystal Growth, 1999, 197: 427-434.
[9]  Micklethwaite W F H. The automatic determination of cadmium-mercury telluride composition [J]. Journal of Applied Physics, 1988, 63: 2382-2390.
[10]  Zhang J J, Jie W Q, Luan L J, et al. Evaluation of Mn Uniformity in CdMnTe crystal grown by the vertical Bridgman method [J]. Journal of Electronic Materials, 2008, 37[8]: 1158-1162.
[11]  Zaets W, Watanabe K, and Ando K. Cd1-xMnxTe magneto-optical waveguide integrated on GaAs substrate [J]. Applied Physics Letters, 1997, 70: 2508-2510.
[12]  Urbach F. The long-wavelength edge of photographic sensitivity and of the electronic absorption of solids [J]. Physics Review, 1953, 92: 1324.
[13]  Andr R, Dang L S. Low-temperature Refractive Indices of Cd1-xMnxTe and Cd1-xMgxTe [J]. Journal of Applied Physics, 1997, 82(10): 5086-5089.
[14]  Zhang J J, Jie W Q, Wang T, et al. Vertical Bridgman Growth and Characterization of CdMnTe Substrates for HgCdTe Epitaxy [J], Journal of Crystal Growth, 2008, 310: 3203-3207.

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