Dependence of charge carrier mobility of 4,4 ',4 ''-tris (N-3-methylphenyl-N-phenylamino)triphenylamine on doping concentration of tetrafluoro-tetracyano-quinodimethane
IR@NPL: CSIR-National Physical Laboratory, New Delhi
View Archive Info| Field | Value | |
| Title |
Dependence of charge carrier mobility of 4,4 ',4 ''-tris (N-3-methylphenyl-N-phenylamino)triphenylamine on doping concentration of tetrafluoro-tetracyano-quinodimethane
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| Creator |
Chauhan, Gayatri
Srivastava, Ritu Kumar, Arunandan Rana, Omwati Srivastava, P. C. Kamalasanan, M. N. |
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| Subject |
Materials Science
Applied Physics/Condensed Matter |
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| Description |
Electrical transport of pure and tetrafluoro-tetracyano-quinodimethane doped 4,4 ',4 ''-tris(N-3-methylphenyl-N-phenylamino)triphenylamine (m-MTDATA) films have been studied at various temperatures and doping concentrations. Pure films show space charge limited conduction with field and temperature dependent mobility. The J-V characteristics of doped m-MTDATA were ohmic at low voltages due to thermally released carriers from dopant states. At higher voltages the current density increases nonlinearly due to field dependent mobility and carrier concentration thereby filling of tail states of HOMO of the host. The conductivity of doped films were analysed using the Unified Gaussian Disorder Model (UGDM). The carrier concentration obtained from the fitting show a non-linear dependence on doping concentration which may be due to a combined effect of thermally activated carrier generation and increased carrier mobility.
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| Publisher |
Elsevier
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| Date |
2012-03
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/3652/1/Dependence%20of%20charge%20carrier%20mobility.pdf
Chauhan, Gayatri and Srivastava, Ritu and Kumar, Arunandan and Rana, Omwati and Srivastava, P. C. and Kamalasanan, M. N. (2012) Dependence of charge carrier mobility of 4,4 ',4 ''-tris (N-3-methylphenyl-N-phenylamino)triphenylamine on doping concentration of tetrafluoro-tetracyano-quinodimethane. Organic Electronics, 13 (3). pp. 394-398. ISSN 1566-1199 |
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| Relation |
http://npl.csircentral.net/3652/
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