Optoelectronic characterization of zinc complexes for display device applications
IR@NPL: CSIR-National Physical Laboratory, New Delhi
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| Title |
Optoelectronic characterization of zinc complexes for display device applications
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| Creator |
Nishal, Vandna
Singh, Devender Saini, Raman Kumar Bhagwan, Shri Tanwar, Vijeta -, Sonika Srivastava, Ritu Kadyan, Pratap Singh |
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| Subject |
Electronics and Electrical Engineering
Materials Science Applied Physics/Condensed Matter |
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| Description |
2-(2-Pyridyl)benzimidazolato)-2-methyl-8-hydroxyquinolinatozinc(II)[ZnPBI(Meq)], 2-(2-pyridyl)benzimidazolato)-5-chloro-8-hydroxyquinolinatozinc(II) [ZnPBI(Clq)] and 2-(2-pyridyl)benzimidazolato)-8-hydroxyquinolinatozinc(II) [ZnPBI(q)] were synthesized and characterized for the purpose to be used as electroluminescent materials. All complexes emitted bright colored light on excitation by ultra-violet light source which showed their suitability for the operation in opto-electronic devices. Using a selected complex [ZnPBI(Meq)] as emissive layer, multilayered organic electroluminescent device was fabricated having structure ITO/alpha-NPD/Zinc complex/BCP/Alq(3)/LiF/Al, that produced bright bluish green emission at 532 nm. Maximum luminescence observed was 4038 cd/m(2) at 18 V while the turn on voltage of the device was 7 V. The Commission Internationale d'Eclairage chromaticity of the device had color coordinates at x = 0.35, y = 0.44 and was found to be independent of the operating voltages. The [ZnPBI(Meq)] complex exhibited high thermal stability (> 300 A degrees C) and high glass transition temperature (> 150 A degrees C).
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| Publisher |
Springer Verlag
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| Date |
2015-09
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/1934/1/241.pdf
Nishal, Vandna and Singh, Devender and Saini, Raman Kumar and Bhagwan, Shri and Tanwar, Vijeta and -, Sonika and Srivastava, Ritu and Kadyan, Pratap Singh (2015) Optoelectronic characterization of zinc complexes for display device applications. Journal of Materials Science: Materials in Electronics, 26 (9). 6762 -6768. ISSN 0957-4522 |
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| Relation |
http://npl.csircentral.net/1934/
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