STRUCTURE AND PHOTOELECTROCHEMICAL PROPERTIES OF SEMICONDUCTING RHENIUM CLUSTER CHALCOGENIDES - RE6X8BR2 (X = S, SE)

被引：48
|
作者：
FISCHER, C [1 ]
ALONSOVANTE, N [1 ]
FIECHTER, S [1 ]
TRIBUTSCH, H [1 ]
RECK, G [1 ]
SCHULZ, W [1 ]
机构：
[1] ANALYT ZENTRUM BERLIN ADLERSHOF,O-1199 BERLIN,GERMANY
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1992年 / 178卷
关键词：
D O I：
10.1016/0925-8388(92)90272-B
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Single crystals of Re6Se8Br2 and Re6S8Br2 were synthesized by chemical vapour transport reactions. The latter was crystallized. X-ray structure analysis reveals that Re6S8Br2 is isostructural to Re6Se8Br2. Both semiconducting cluster materials were photoelectro-chemically characterized and showed p-type behaviour. From the photocurrent action spectra, their estimated band gaps are 0.84 eV and 1.65 eV for the selenide and sulphide, respectively, with a probably indirect optical transition.
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页码：305 / 314
页数：10
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