Enhancement of the light output of light-emitting diode with double photonic crystals |
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| Authors: | Zhenfeng Xu Liangcai Cao Qiaofeng Tan Qingsheng He Guofan Jin |
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| Institution: | Tsinghua-Foxcon Nanotechnology Research Center, State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, 100084 Beijing, China |
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| Abstract: | A light-emitting diode (LED) with double photonic crystals (PhCs) is designed to enhance the light output. Based on the configuration of the PhC assisted LED with a single PhC (SPC-LED), a second PhC is added on the bottom surface of the active layer to improve the light output. The optical properties of this double PhCs assisted LED are simulated using the three-dimensional (3D) finite-difference time-domain (FDTD) method. The calculation results show that its light output can be 3.2 times higher than that of LED without PhC, and 1.39 times higher than that of SPC-LED. |
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