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The Hole Transport Characteristics of 1, 4, 5, 8, 9 and ll-Hexaazatriphenylene-Hexacarbonitrile by Blending
The hole transport characteristics of molecule blends of 1, 4, 5, 8, 9 and 11-hexaazatriphenylene-hexacarbonitrile (HAT-CN): N,N'-di(naphthalene-l-yl)-N,N'-diphenyl-benzidine (NPB) and HAT-CN: 4,4'-cyclohexylidenebis[N,N- bis(4-methylphenyl)benzenamine] (TAPC) with various NPB and TAPC mixing concen...
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Published in: | 中国物理快报:英文版 2016 (2), p.106-110 |
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Main Author: | |
Format: | Article |
Language: | English |
Subjects: | |
Online Access: | Get full text |
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Summary: | The hole transport characteristics of molecule blends of 1, 4, 5, 8, 9 and 11-hexaazatriphenylene-hexacarbonitrile (HAT-CN): N,N'-di(naphthalene-l-yl)-N,N'-diphenyl-benzidine (NPB) and HAT-CN: 4,4'-cyclohexylidenebis[N,N- bis(4-methylphenyl)benzenamine] (TAPC) with various NPB and TAPC mixing concentrations (5 90wt%) are studied. When the concentration is in the range of 5-80wt%, it is found that the hole conductions in the two blends are space-charge-limited current (SCLC) with free trap distributions. The current-voltage characteristics of the two blends show SCLC with exponentiM trap distributions at the concentration of 90wt%. The hole mo- bilities of the two blends are very close (10^-4-10^-3 cm2 V^-1 s-X ), the dependence of electric field and temperature can be described by the modified Poole-Frenkel model. The hole mobility and activation energy of the two blends depending on concentration are similar. |
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ISSN: | 0256-307X 1741-3540 |