PHOTOSTIMULATED ELECTRON EMISSION SPECTRA OF VACUUM-ULTRAVIOLET-IRRADIATED IONIC CRYSTALS

被引：18

作者：

BICHEVIN, V

KAAMBRE, H

机构：

[1] Institute of Physics and Astronomy, Academy of Sciences of the Estonian Ssr

来源：

PHYSICA STATUS SOLIDI | 1969年 / 31卷 / 02期

关键词：

D O I：

10.1002/pssb.19690310208

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

By the investigation of the spectral characteristics of photostimulated electron emission it has been shown that F‐centres are created in NaCl, KCl, KBr, and KI single crystals by ultraviolet irradiation in the 5 to 11 eV region. The F‐centres are formed as a result of the photoproduction of excitons as well as electron–hole pairs, the exciton mechanism being especially effective. Under stimulation with visible light, electron emission appears from UV‐created F‐centres due to a two‐step photothermal process in crystals with sufficiently low electron affinity χ and by the usual photoemission mechanism in crystals with relatively high χ. Copyright © 1969 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：493 / &

共 19 条

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