标题: | Color-conversion efficiency enhancement of quantum dots via selective area nano-rods light-emitting diodes |
作者: | Liu, Che-Yu Chen, Tzu-Pei Kao, Tsung Sheng Huang, Jhih-Kai Kuo, Hao-Chung Chen, Yang-Fang Chang, Chun-Yen 电子工程学系及电子研究所 光电工程学系 光电工程研究所 Department of Electronics Engineering and Institute of Electronics Department of Photonics Institute of EO Enginerring |
公开日期: | 22-八月-2016 |
摘要: | A large enhancement of color-conversion efficiency of colloidal quantum dots in light-emitting diodes (LEDs) with novel structures of nanorods embedded in microholes has been demonstrated. Via the integration of nano-imprint and photolithography technologies, nanorods structures can be fabricated at specific locations, generating functional nanostructured LEDs for high-efficiency performance. With the novel structured LED, the color-conversion efficiency of the existing quantum dots can be enhanced by up to 32.4%. The underlying mechanisms can be attributed to the enhanced light extraction and nonradiative energy transfer, characterized by conducting a series of electroluminescence and time-resolved photoluminescence measurements. This hybrid nanostructured device therefore exhibits a great potential for the application of multi-color lighting sources. (C) 2016 Optical Society of America |
URI: | http://dx.doi.org/10.1364/OE.24.019978 http://hdl.handle.net/11536/132692 |
ISSN: | 1094-4087 |
DOI: | 10.1364/OE.24.019978 |
期刊: | OPTICS EXPRESS |
Volume: | 24 |
Issue: | 17 |
起始页: | 19978 |
结束页: | 19987 |
显示于类别: | Articles |
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