Study on vacuum ultraviolet spectra of amorphous Er2O3 films on Si(001) substrates

被引：0
作者：
朱燕艳 [1 ]
方泽波 [2 ]
徐闰 [3 ]
陈静 [1 ]
曹海静 [1 ]
李慧玉 [1 ]
机构：
[1] Department of Mathematics and Physics, Shanghai University of Electric Power
[2] Department of Physics, Shaoxing University
[3] School of Materials Science and Engineering, Shanghai University
来源：
JournalofRareEarths | 2011年 / 29卷 / 09期
基金：
中国国家自然科学基金;
关键词：
optical properties; rare earth oxides; solar cells;
D O I：
暂无
中图分类号：
TB43 [薄膜技术];
学科分类号：
0805 ;
摘要：
Amorphous Er2O3 films have been fabricated on p-type Si(001) substrates using radio frequency magnetron sputtering technique. Vacuum ultraviolet spectra were employed to investigate the samples. An optical gap of 6.17 eV for Er2O3 films was obtained from the ab-sorption coefficient spectra. A possible reason was put forward to explain the inconsistent results about the band gap of Er2O3 in literatures. Emission spectra exhibited a strong emission band at 494 nm with the incident ultraviolet light of 249 nm. The observed high density of emission bands of Er2O3 films in the visible wavelength indicated that Er2O3 films could be used in Si solar cells for increasing conversion efficiency.
引用
收藏
页码：888 / 890
页数：3
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