Infrared photoluminescence of arsenic-doped HgCdTe in a wide temperature range of up to 290 K
Infrared photoluminescence of arsenic-doped HgCdTe in a wide temperature range of up to 290 K
复制标题
砷掺杂 HgCdTe 在高达 290 K 的宽温度范围内的红外光致发光
DOI:
10.1063/1.3622588
复制
发表时间:
2011-08
影响因子:
3.2
通讯作者:
Chu, Junhao
中科院分区:
文献类型:
--
作者:
Zhang, Xiaohua;Shao, Jun;Chen, Lu;Lue, Xiang;Guo, Shaoling;He, Li;Chu, Junhao
Infrared modulated photoluminescence (PL) spectra are recorded in the temperature range of 11.5-290 K for both as-grown and p-type annealed arsenic-doped narrow-gap HgCdTe epilayers prepared by molecular beam epitaxy. Curve fittings indicate that conduction band-to-valence band transition is just detectable at 77 K but will dominate the PL line shape at temperatures above about 200 K. Below 100 K, transitions are mainly impurity-related. Shallow impurity levels are estimated to be about 12, 20, 17, and 26 meV, respectively, for VHg and AsTe as acceptors, and AsHg and TeHg as donors, which are very similar to those established by theory and/or infrared photoreflectance spectroscopy. The p-type annealing removes deep level-related PL features that are only observed in the as-grown HgCdTe epilayer. Comparison with previous PL study suggests that infrared modulated PL technique can serve as an easily accessible pathway for characterizing impurities in narrow-gap HgCdTe when PL spectra are recorded with good s...
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DOI:
10.1103/physrevb.80.155125
发表时间:
2009-10
期刊:
Physical Review B (IF=3.772)
影响因子:
--
作者:
Shaoling Guo;Jianrong Yang;Lu Chen;Yanfeng Wei;Wei Lu;Li He;Xiang Lü;Junhao Chu;Jun Shao
通讯作者:
Jun Shao
影响因子:
4
作者:
Shao, Jun;Chen, Lu;Lu, Wei;Lue, Xiang;Zhu, Liangqing;Guo, Shaoling;He, Li;Chu, Junhao
通讯作者:
Chu, Junhao
影响因子:
4
作者:
F. Yue;J. Shao;Xiang Lü;Wei Huang;J. Chu;Jun Wu;Xingchao Lin;Li He
通讯作者:
F. Yue;J. Shao;Xiang Lü;Wei Huang;J. Chu;Jun Wu;Xingchao Lin;Li He
影响因子:
3.7
作者:
BERDING, MA;VANSCHILFGAARDE, M;SHER, A
通讯作者:
SHER, A
影响因子:
8.6
作者:
Olego;Faurie;Raccah
通讯作者:
Olego;Faurie;Raccah