| 稀磁半导体Zn_（1－x）Co_xSe的光谱特性 |
| |
| 引用本文： | 陈辰嘉,王学忠,覃智峰,胡巍. 稀磁半导体Zn_（1－x）Co_xSe的光谱特性[J]. 光谱学与光谱分析, 1994, 0(2) |
| |
| 作者姓名： | 陈辰嘉 王学忠 覃智峰 胡巍 |
| |
| 作者单位： | 北京大学物理系 |
| |
| 摘 要： | 本文首次报道一类新型半导体材料：含Ｃｏ＋＋离子的稀磁半导体Ｚｎ１－ｘＣｏｘＳｅ晶体的光谱特性研究实验结果。对组分Ｘ＝０．００１，０．００９７，０．０３０，０．０３７系列样品，在７３Ｋ—３００Ｋ范围内分别在可见和近红外区测量了吸收光谱和光致发光谱。实验观测到一系列与Ｘ值无关的吸收峰和光致发光峰，两者—一对应，它们分别对应于具有几对称的晶体场中Ｃｏ＋＋离子不同能级间的跃迁，对这些峰进行了初步指认。从光致发光谱实验结果给出能隙随Ｘ值的变化。
|
| 关 键 词： | 稀磁半导体，吸收光谱，光致发光谱 |
OPTICAL PROPERTIES IN DILUTED MAGNETIC SEMICONDUCTOR Zn_(1-x)Co_xSe |
| |
| CHEN Chen jia, WANG Xuezhong, QIN Zhifeng, HU wei. OPTICAL PROPERTIES IN DILUTED MAGNETIC SEMICONDUCTOR Zn_(1-x)Co_xSe[J]. Spectroscopy and Spectral Analysis, 1994, 0(2) |
| |
| Authors: | CHEN Chen jia WANG Xuezhong QIN Zhifeng HU wei |
| |
| Affiliation: | CHEN Chen jia, WANG Xuezhong, QIN Zhifeng, HU wei Department of Physics,Peking University,100871 Beijing W. Giriat Centro de Fisica institute Venezolano de Investigaciones Cientificas,Apartado 21827,Caracas 1020A,Venezuela |
| |
| Abstract: | We report the measurement results of optical properties in a new class of semiconductor crystal Zn1-xCoxSe for the first time. Absorption and PL spectra have been investigated with composition x= 0. 001, 00097, 0. 030, 0. 037 at temperature 73K to 300K in visible and near infrared region respectively. A series of absorption and PL spectra have been observed. Both of the spectra is in good agreement and the peak is independenton the composition of sample and corresponding to transitions between the different energy level of Co+ +ions for states of d7 configuration in a crystal field of Td symmetry. Band gap energy as a function of composition x for Zn1-xCoxSe has been obtained by PL spectra measurements. |
| |
| Keywords: | Diluted magnetic semiconductor Absorption spectra PL spectra |
| 本文献已被 CNKI 等数据库收录！ |
|
