期刊
JAPANESE JOURNAL OF APPLIED PHYSICS
卷 49, 期 12, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1143/JJAP.49.120201
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资金
- Ministry of Education, Culture, Sports, Science and Technology of Japan [20710071]
The electrical conductivities of organic single crystal heterointerfaces are investigated. Electron transfer at the rubrene/7,7,8,8-tetracyanoquinodimethane (TCNQ) interface from the highest occupied molecular orbital of rubrene to the lowest unoccupied molecular orbital of TCNQ imparts conductivity to the interface. A conducting layer is formed at a rubrene-on-TCNQ heterointerface, but not at a TCNQ-on-rubrene heterointerface fabricated on a rigid SiO2/Si substrate. The formation of an interfacial conducting layer requires a good contact between two single crystals; therefore, the experimental results might be explained by the poor adherence of rather thick TCNQ crystals to the rigid rubrene/SiO2/Si system. (C) 2010 The Japan Society of Applied Physics DOI: 10.1143/JJAP.49.120201
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