Photoconductivity and luminescence in lanthanum oxysulfide
作者:
W.I. Dobrov,
R.A. Buchanan,
期刊:
Applied Physics Letters
(AIP Available online 1972)
卷期:
Volume 21,
issue 5
页码: 201-203
ISSN:0003-6951
年代: 1972
DOI:10.1063/1.1654343
出版商: AIP
数据来源: AIP
摘要:
Rare‐earth doped crystals of lanthanum oxysulfide were found to exhibit strong photoconductivity which increases rapidly with temperature. Correlation of photoconductivity to luminescence spectra of La2O2S : Eu shows that thermal quenching of the luminous emission from5Dstates leads to the production of photocarriers, the majority of which are most likely holes. Special features of La2O2S : Eu photoconductivity indicate the important role which the charge‐transfer states play in the luminescence mechanisms.
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