Enhancing the performance of polymer light-emitting diode via methanol treatment |
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| Authors: | Qiaoli Niu Yongli Wang Yong Zhang Xin Wang |
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| Institution: | Institute of Optoelectronic Materials and Technology, South China Normal University, Key Laboratory of Electroluminescent Devices of Department of Education of Guangdong Province, Guangzhou 510631, PR China |
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| Abstract: | Enhanced performance of polymer light-emitting diodes (PLEDs) was realized by performing methanol treatment on the emissive layer. Experimental results show that with methanol treatment the electron current increased owing to the rougher surface topography of the emissive layer. Therefore, the balance between electron and hole current was improved. The maximum luminous efficiency and external quantum efficiency of PLEDs increased from 19.7 cd/A and 6.89% to 22.5 cd/A and 7.87%, respectively. |
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| Keywords: | Polymer light-emitting diode Methanol treatment Electron injection Barrier |
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