Enhancing the device performance of a blue light‐emitting copolymer using CdSe/ZnS quantum dots |
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| Authors: | Selin P?ravad?l? Mucur Daniel Lenkeit Ioannis Kanelidis Sait Eren San Elisabeth Holder Emine Tekin |
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| Institution: | 1. Gebze Institute of Technology, Department of Physics Gebze, , Kocaeli, Turkey;2. Tubitak ‐ UME, Photonic and Electronic Sensor Laboratory, , Kocaeli, Turkey;3. Functional Polymers Group and Institute of Polymer Technology, University of Wuppertal, , Germany;4. Dutch Polymer Institute (DPI), , The Netherlands |
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| Abstract: | An alternating triarylamine‐functionalized fluorene‐based copolymer synthesized using a Suzuki–Miyaura cross‐coupling procedure is used as blue emitting layer in polymer light‐emitting diodes (PLEDs). Subsequently, the effects of CdSe/ZnS quantum dots (QDs) on the optoelectronic properties of the copolymer are investigated. Therefore, CdSe/ZnS QDs are embedded into the copolymer matrix and hybrid PLEDs are fabricated. The devices comprised of CdSe/ZnS QDs reveal enhanced performances, yielding about 3.4 times more luminous efficiency than that of the device without QDs. Further enhancement is achieved by using electron transport layer; the luminous efficiency rose from 0.065 to 1.740 cd A?1 for the hybrid PLEDs, corresponding to a superb 27‐fold intensification of the efficiency. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2014 , 52, 147–156 |
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| Keywords: | conjugated polymers luminescence morphology nanocomposites thin films |
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