ZnGeP2晶体近红外吸收特性的研究

doi:10.3724/SP.J.1077.2010.01029

无机材料学报 ›› 2010, Vol. 25 ›› Issue (10): 1029-1033.DOI: 10.3724/SP.J.1077.2010.01029 CSTR: 32189.14.SP.J.1077.2010.01029

ZnGeP₂晶体近红外吸收特性的研究

夏士兴, 杨春晖, 朱崇强, 马天慧, 王猛, 雷作涛, 徐斌

(哈尔滨工业大学化工学院, 哈尔滨150001)

收稿日期:2010-01-26 修回日期:2010-05-19 出版日期:2010-10-20 网络出版日期:2010-09-26
基金资助:
国家自然科学基金(E50872023); 黑龙江省科技攻关项目(GC05A205)

Study on the Near-infrared Absorption Properties of ZnGeP₂Single Crystals

XIA Shi-Xing, YANG Chun-Hui, ZHU Chong-Qiang, MA Tian-Hui, WANG Meng, LEI Zuo-Tao, XU Bin

(School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, China)

Received:2010-01-26 Revised:2010-05-19 Published:2010-10-20 Online:2010-09-26
Supported by:
National Nature Science Foundation of China(E50872023); Key Project of Science and Technology of Helongjiang Province(GC05A205)

摘要/Abstract

摘要： 采用布里奇曼法生长了磷化锗锌晶体, 晶体毛坯尺寸达直径20mm×90mm, 选取晶体尾部、晶体中部、籽晶端三个部位厚度为4.0mm的抛光晶片作为测试样品. 从实验和理论上研究与分析了晶体的近红外吸收特性. 实验结果显示: 晶体透过率由尾部至近籽晶端逐渐增大, 表明晶体近红外吸收由尾部至近籽晶端逐渐减小, 这是由于晶体内缺陷密度发生了改变, 且晶体内本征点缺陷分布比例不均衡, 进而导致晶体的近红外吸收产生差异. 理论上计算了磷化锗锌晶体施主缺陷和受主缺陷的吸收光谱. 计算结果表明: 受主缺陷对磷化锗锌晶体吸收光谱产生的影响大于施主缺陷.

关键词: 磷化锗锌, 近红外吸收, 缺陷密度, 施主缺陷, 受主缺陷

Abstract: Zinc germanium phosphide crystals about 20mm×90mm were grown by using Bridgman techniques. The three measured crystal sheets with thickness 4.0mm were obtained from the tail, middle and top of single crystal ingot. The infrared absorption properties were studied according to the experimental and theoretical data. The results show that the transmitted intensity gradually increased from top to bottom of ZGP crystals, which is caused by the inhomogeneous distribution of different kinds of intrinsic point defect. The absorption spectra of donor defects and acceptor defect in ZGP crystals are calculated theoretically. It is found that the influence of acceptor defect on absorption spectra is stronger than that of donor defect.

Key words: zinc germanium phosphide, near infrared absorption, defects density, donor defects, acceptor defects

中图分类号:

O782

夏士兴, 杨春晖, 朱崇强, 马天慧, 王猛, 雷作涛, 徐斌. ZnGeP₂晶体近红外吸收特性的研究[J]. 无机材料学报, 2010, 25(10): 1029-1033.

XIA Shi-Xing, YANG Chun-Hui, ZHU Chong-Qiang, MA Tian-Hui, WANG Meng, LEI Zuo-Tao, XU Bin. Study on the Near-infrared Absorption Properties of ZnGeP₂Single Crystals[J]. Journal of Inorganic Materials, 2010, 25(10): 1029-1033.

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ZnGeP₂晶体近红外吸收特性的研究

Study on the Near-infrared Absorption Properties of ZnGeP₂Single Crystals

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