Acta Optica Sinica, Volume. 38, Issue 1, 0122001(2018)
Enhancement of Light Extraction Efficiency of LED by Bionic Moth-Eye Structure with Frustum of a Cone
Figures & Tables(10)
Fig. 1. (a) Arrangement of frustum of a cone microstructure and (b) schematic of LED with the array structure
Fig. 2. Light extraction efficiency as a function of the bottom fill factor of the microstructure
Fig. 3. Light extraction efficiency as a function of the bottom radius of the microstructure
Fig. 4. Light extraction efficiency as a function of the height of the microstructure
Fig. 5. Light extraction efficiency as a function of the side slope angle of the microstructure
Fig. 6. SEM image of the large area SiO2 nanosphere array with the diameter of 500 nm
Fig. 8. AFM scanning structure. (a) Three dimensional diagram of AFM test; (b) section profile
Fig. 9. EL test curves of the test sample and the reference sample. (a) Volt ampere characteristic curve; (b) light intensity-current curve
Table 1. Design parameters and test parameters
View tableTable 1. Design parameters and test parameters
Item Fill factor Bottom radius /nm Height /nm Angle /(°) Design value 0.55 220 245 70 Real value 0.58±0.05 220±6 245±6 70±3
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Shunrui Liu, Li Wang, Yanjun Sun, Jun Wang, Yue Wang, Tianqi Wu, Yanbing Leng, Lianhe Dong. Enhancement of Light Extraction Efficiency of LED by Bionic Moth-Eye Structure with Frustum of a Cone[J]. Acta Optica Sinica, 2018, 38(1): 0122001
Paper Information
Category: Optical Design and Fabrication
Received: Jul. 14, 2017
Accepted: --
Published Online: Aug. 31, 2018
The Author Email: Sun Yanjun (custsun@126.com)
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