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Light extraction efficiency enhancement in light-emitting diodes with indium tin oxide nano-craters
, 2012 Zheng, Huaiwen +6 more
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Telling Secrets in the Light: An Efficient Key Extraction Mechanism Via Ambient Light
IEEE Transactions on Wireless Communications, 2021Due to the benefits of small latency, low energy consumption and increased data rate, device-to-device (D2D) communication is recognized as one of the promising techniques in the 5G era. However, the distributed nature of D2D communication makes it non-trivial to generate symmetric keys for the involving parties.
Youjing Lu +4 more
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Enhanced light extraction efficiency of OLEDs with quasiperiodic diffraction grating layer
Optics Express, 2016 We presented enhanced light extraction efficiency of organic light emitting diodes (OLEDs) cells with a nano-sized diffraction grating layer. Various diffraction gratings of different morphologies including linear, cubic, hexagonal and quasiperiodic patterns were fabricated by multiplexing light interference exposure on an azobenzene thin film.
Kwan Hyun Cho, , Yong-Cheol Jeong
exaly +4 more sources
Interplay of sidewall damage and light extraction efficiency of micro-LEDs
Optics Letters, 2022This Letter describes the impact of shape on micro light-emitting diodes (µLEDs), analyzing 400 µm2 area µLEDs with various mesa shapes (circular, square, and stripes). Appropriate external quantum efficiency (EQE) can yield internal quantum efficiency (IQE) which decreases with increasing peripheral length of the mesas.
Jeong-Hwan Park +7 more
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Improvement for the Light Extraction Efficiency of LightEmitting Diodes
ACTA PHOTONICA SINICA, 2010The impact of the refractive index and thickness of substrate on the light extraction efficiency of flip-chip LED is analyzed through simulation analysis.And a new diamond-shaped structure is proposed.The results show that the light extraction efficiency is improved to a good purpose in the diamond-shaped LED,resulting in an increase in the light ...
熊伟平 XIONG Weiping +2 more
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Light Extraction Efficiency Part B. Light Extraction of High Efficient LEDs
2013This chapter deals with methods for fabricating high efficient light-emitting diodes (LEDs) with higher light extraction efficiency (LEE). Some LED prototypes are then reviewed to investigate how their performance was enhanced by utilizing a variety of chip processes.
Ja-Yeon Kim +6 more
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Improving light extraction efficiency of PhC LED
2016 11th International Conference on Advanced Semiconductor Devices & Microsystems (ASDAM), 2016In this work we focus on improving light extraction efficiency of PhC LED. Studied LED structure was based on GaAs/AlGaAs material system. 1D PhC was patterned on the top of the LED structure with 3 different periods (500 nm, 600 nm, 800 nm). Several studies confirm improving light extraction efficiency of studied LED structure using PhC patterning. In
P. Hronec +4 more
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Light extraction efficiency analysis of fluorescent OLEDs device
Optical and Quantum Electronics, 2021Computation simulation study has been performed to demonstrate the fluorescent properties of the organic light-emitting diode (OLED) device structure. The critical angle is defined at emission wavelength 500 nm for the crown glass-air boundary with the radiant intensities of the s- and p-polarized light increased significantly at the critical angle ...
Arvind Sharma, T. D. Das
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