OPTICAL-ABSORPTION IN AS-SE GLASSES

被引：19

作者：

PETURSSON, J

MARSHALL, JM

OWEN, AE

机构：

[1] UNIV COLL SWANSEA,DEPT MAT ENGN,SWANSEA SA2 8PP,W GLAM,WALES

[2] UNIV EDINBURGH,DEPT ELECT ENGN,EDINBURGH EH9 3JL,MIDLOTHIAN,SCOTLAND

来源：

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES | 1991年 / 63卷 / 01期

关键词：

D O I：

10.1080/01418639108224428

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The optical absorption above the fundamental edge has been measured as a function of temperature for 15 compositions from Se to AsSe. The samples were thin films made by blowing bubbles from the melt. The optical gap has a minimum near As43Se57. Tauc plots for absorption at different temperatures but the same composition appear to converge to a single point. An unexpected linear relation is observed between composition and the inverse square of the slopes of the Tauc plots. An inverse correlation is observed between optical gap and the glass-transition temperature.

引用

页码：15 / 31

页数：17

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[1] INTERBAND ABSORPTION-SPECTRA OF DISORDERED SEMICONDUCTORS IN THE COHERENT POTENTIAL APPROXIMATION [J].