光谱学与光谱分析 |
|
|
|
|
|
Growth and Red Luminescence Suppression of γ-CuⅠ Single Crystal |
CAI Zu-xu, GU Mu*, LIU Xiao-lin, LIU Bo, HUANG Shi-ming, NI Chen |
Shanghai Key Laboratory of Special Artificial Microstructure Materials & Technology, Department of Physics, Tongji University, Shanghai 200092, China |
|
|
Abstract Transparent γ-CuⅠ crystal with size about 9 mm×9 mm×1 mm was grown by using optimized solvent evaporation method with γ-CuⅠ powders as raw material and acetonitrile as solvent. The results of Rutherford backscattering spectrometry (RBS) showed that the proportions of copper and iodine in as-grown γ-CuⅠ crystal were 53.1 and 46.9mol%, respectively. By iodine doping into growth solution, the proportions of copper and iodine were adjusted to 50.4 and 49.6 mol%, respectively. Photoluminescence (PL) showed that the as-grown γ-CuⅠ crystal had an emission at 410 nm and an emission band around 720 nm. After iodine doping, the emission band around 720 nm was suppressed while other two weak emissions at 424 and 474 nm appeared. X-ray excited luminescence (XEL) showed that the as-grown γ-CuⅠ crystal had an emission at 435 nm and an emission band around 720 nm. After iodine doping, the emission band around 720 nm was suppressed. Comparing the emission spectra before and after iodine doping, it is clear that red luminescence in γ-CuⅠ crystal could be suppressed by iodine doping. The effect originated from the reduction of iodine vacancy in the crystal, but not from the iodine adsorbtion on the surface.
|
Received: 2012-06-18
Accepted: 2012-10-11
|
|
Corresponding Authors:
GU Mu
E-mail: mgu@tongji.edu.cn
|
|
[1] Lewonczuk S, Ringeissen J. Physical Review B, 1994, 49: 2344. [2] Tanka I, Kim D, Nakayama M, et al. Journal of Luminescence, 2000, 87, 257. [3] Boyce J B, Hayes T M, Mikkelsen J C. Jr. Physical Review B, 1981, 23: 2876. [4] Derenzo S E, Weber M J, Klintenberg M K. Nuclear Instrument and Method in Physics Research A, 2002, 486: 214. [5] Gu M, Gao P, Liu X L, et al. Materials Research Bulletin, 2010, 45: 636. [6] CUI Yu-jie,PAN Jian-guo,YANG Shu-ying,et al(崔玉杰,潘建国,杨书颖,等). Journal of Synthetic Crystals(人工晶体学报), 2010, 39(5): 1109. [7] Chen D G, Wang Y J, Zhang L, et al. Crystal Growth & Design, 2010, 10: 2057. [8] Gao P, Gu M, Liu X L, et al. Applied Physics Letter, 2009, 95: 221904. [9] Zhang Y, Sun W, Santos A M, et al. Catalysis Letters, 2005, 101: 35. [10] Yang Y, Gao Q. Langmuir, 2005, 21: 6866. [11] Oggioni R, Spinolo G. Physical Review, 1963, 131(1): 1114. |
[1] |
HUANG Wei-bo, CHEN Jia-yun, HUANG Fang, HUANG Li-shan, OUYANG Jian-ming*. Effects of Different Molecular Weight of Gracilaria Lemaneiformis Polysaccharide on Calcium Oxalate Crystal[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(04): 1163-1170. |
[2] |
YOU Zhen-yu1, TU Chao-yang1*, ZHU Zhao-jie1, LI Jian-fu1, WEI Min1, Alain Brenier2 . Study on the Growth and Spectral Characteristics of LiNbO3:Cr:ZnO Crystal [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(01): 1-5. |
[3] |
ZHANG Qing-li, XIAO Jing-zhong, SUN Dun-lu, WANG Ai-hua, YIN Shao-tang . Crystal Growth and Spectral Parameter Computation of Yb:YAG [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(10): 1157-1160. |
[4] |
ZANG Jing-cun1,LIU Yu-long2,XU Dong-yong1,GONG Feng1,SHAN Bing-rui1 . Spectroscopic Characterization of Tm3+ Ions in Zinc Tungstate Crystals [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(02): 129-131. |
|
|
|
|