Phenothiazine and carbazole substituted pyrene based electroluminescent organic semiconductors for OLED devices
Salunke, Jagadish K., Wong, F. L., Feron, Krishna, Manzhos, Sergei, Lo, Ming Fai, Shinde, Durgaprasad, Patil, Abhijeet, Lee, C. S., Roy, V. A. L., Sonar, Prashant, & Wadgaonkar, Prakash P. (2016) Phenothiazine and carbazole substituted pyrene based electroluminescent organic semiconductors for OLED devices. Journal of Materials Chemistry C, 4(5), pp. 1009-1018.
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Due to their easy availability, low cost and opportunities for exploiting reactions of bromo substituents, 1,3,6,8-tetrabromopyrene has attracted major attention in the organic electronics community for designing and constructing novel classes of pyrene based organic semiconducting functional materials. In the present work, 1,3,6,8-tetrabromo pyrene was transformed into the corresponding tetrasubstituted carbazole and phenothiazine derivatives using the classical Suzuki coupling reaction. These newly synthesized materials with a carbazole substituent (PY-CA) and a phenothiazine substituent (PY-PH) were characterised thoroughly and were successfully used as an active light-emitting layer in organic light emitting diodes which resulted in blue and green emission with promising device performance. PY-CA exhibited the maximum brightness at around 2500 cd m−2 and the power efficiency of 1.5 lm W−1 while that of PY-PH exhibited 2116 cd m−2 and 0.45 lm W−1 respectively.
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|Item Type:||Journal Article|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2016 The Royal Society of Chemistry|
|Deposited On:||11 Oct 2016 22:33|
|Last Modified:||25 Oct 2016 04:40|
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