Results 221 to 230 of about 119,264 (245)
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Mechanisms of Forward Current and Reverse Leakage Current in GaN-Based Blue Light Emitting Diodes
Applied Mechanics and Materials, 2013By measuring the current-voltage (I-V) characteristics in the temperature range of 100 K to 300 K, mechanisms of the forward tunneling current and the reverse leakage current of GaN-based blue light emitting diodes are analyzed. For the forward current, both the temperature-independent current slope and an ideality factor larger than 2 are typical ...
Ren Jian +3 more
exaly +2 more sources
IEEE Photonic Society 24th Annual Meeting, 2011
We have studied the light leakage mechanism of the protruded electrode used for blue phase LCD. According to our study, the light leakage can be reduced by identical refractive indices of the protrusion and BPLC.
Seung Hee Lee +2 more
exaly +2 more sources
We have studied the light leakage mechanism of the protruded electrode used for blue phase LCD. According to our study, the light leakage can be reduced by identical refractive indices of the protrusion and BPLC.
Seung Hee Lee +2 more
exaly +2 more sources
IEEE Photonics Technology Letters, 2017
The nature of charge transport in GaN-based light-emitting diodes (LEDs) under reverse biases still remains elusive as the bias- and temperature-dependent characteristics of the current can hardly be formulated using a single transport mechanism. In this letter, based on numerical fitting, we develop a combined tunneling-hopping transport model to ...
Xiaofeng Gu, Ting Zhi, Dawei Yan
exaly +2 more sources
The nature of charge transport in GaN-based light-emitting diodes (LEDs) under reverse biases still remains elusive as the bias- and temperature-dependent characteristics of the current can hardly be formulated using a single transport mechanism. In this letter, based on numerical fitting, we develop a combined tunneling-hopping transport model to ...
Xiaofeng Gu, Ting Zhi, Dawei Yan
exaly +2 more sources
Japanese Journal of Applied Physics, 2018
Abstract We investigated the reverse leakage current characteristics of InGaN/GaN multiple quantum well (MQW) near-ultraviolet (NUV)/blue/green light-emitting diodes (LEDs). Experimental results showed that the NUV LED has the smallest reverse leakage current whereas the green LED has the largest.
Sheng Liu, Shengjun Zhou
exaly +2 more sources
Abstract We investigated the reverse leakage current characteristics of InGaN/GaN multiple quantum well (MQW) near-ultraviolet (NUV)/blue/green light-emitting diodes (LEDs). Experimental results showed that the NUV LED has the smallest reverse leakage current whereas the green LED has the largest.
Sheng Liu, Shengjun Zhou
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Anti‑leakage of blue light for phosphor‑converted white LEDs with nano cellulose
Current Developments in Lens Design and Optical Engineering XXVTsung-Hsun Yang, Chi-Shou Wu
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UVB protective polyvinyl alcohol/ZnCeO3 nanocomposite Films: Blue luminescent UV leakage detectors
European Polymer JournalK S Nithin, S Sachhidananda, S Roopa
exaly +3 more sources
Complete suppression of surface leakage currents in microperforated blue light-emitting diodes
Applied Physics Letters, 2009We investigated the effects of thermal annealing and sulfide passivation on the electrical characteristics of GaN-based light-emitting diodes (LEDs) whose active regions were integrated with a plasma-etched microhole array resembling a photonic crystal structure. Thermal annealing removed most plasma damage in the near-surface bulk region, whereas (NH4)
Y. Yang, X. A. Cao
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Study on the light leakage mechanism of a blue phase liquid crystal cell with oblique interfaces
Journal of Physics D: Applied Physics, 2012Abstract The mechanism of light leakage in the dark state of a blue phase liquid crystal display cell which has protruded electrodes was investigated. We have performed a hybrid numerical simulation by combining the geometrical optics with the extended Jones matrix method.
Sukin Yoon +7 more
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Area Divided Leakage Mirror for Blue-LD Optical Pick-Up
International Symposium on Optical Memory and Optical Data Storage, 2005Area divided leakage mirror can correct the beam profile while act as a beam splitting element for the front monitor light, and is effective to the reduction in the number of parts.
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Journal of Materials Chemistry C, 2022
Improvement of exciton leakage by insertion of DMAC-DPS results in the successful preparation of high-efficiency blue OLEDs and WOLEDs.
Junhua Xie +6 more
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Improvement of exciton leakage by insertion of DMAC-DPS results in the successful preparation of high-efficiency blue OLEDs and WOLEDs.
Junhua Xie +6 more
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