The Photovoltage-gas Sensitive Properties of 7,7,8,8-Tetracyanoquinodimethane(TCNQ)

被引：0
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作者：
Jiang Lei
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来源：
Chemical Research in Chinese Universities | 1990年 / 04期
关键词：
Surface photovoltage; Gas sensitivity; Adsorption;
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摘要：
In this paper, surface photovoltage technique (SPV) was applied to the study of photovoltaic and gas sensitive properties of TCNQ polycrystal. It was found that SPV shows two peaks at 390 nm(P1) and 480 nm (P2) in the ultraviolet-visible range. And they are opposite in phase. The results of gaseous adsorption confirm that P, shows the acceptor characteristics, while PI shows that of donor. During adsorption, donor gas interacts with conjugated II * orbital, acceptor gas with the terminal group C=N .
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页码：341 / 345
页数：5
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