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Blue‐Emitting ZnSe(Te) Quantum Dots and Light‐Emitting Diodes [PDF]

Advanced Science
Zn‐based quantum dots (QDs) have been regarded as the most promising Cd‐free candidates for blue‐emitting applications. ZnSe QDs exhibit an ultra‐narrow full width at half maximum (FWHM), high photoluminescence quantum yield (PLQY), and excellent ...
Lijin Wang, Aiwei Tang, Jingbi You
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High-performance red light-emitting diodes from quasi-two-dimensional perovskite nanocrystals [PDF]

Nature Communications
Metal halide perovskite light-emitting diodes offer a promising platform for low-cost full-color displays, yet achieving high-performance pure-red emission remains challenging.
Jibin Zhang, Tianjun Liu, Qichun Gu, Shuailing Lin, Jian Mao, Zimu Wei, Meng Wang, Yang Lu, Bo Cai, Zher Ying Ooi, Alessandro James Mirabelli, Linyuan Lian, Miguel Anaya, Ying Liu, Mochen Jia, Xu Chen, Yanbing Han, Xinzhen Ji, Yiwei Zhang, Zhuangzhuang Ma, Xinping Zhang, Xin Zhou, Xinjian Li, Fanglong Yuan, Lintao Hou, Chongxin Shan, Neil C. Greenham, Samuel D. Stranks, Zhifeng Shi   +28 more
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Bidirectional light-emitting diode as a visible light source driven by alternating current

Nature Communications, 2023
Gallium nitride-based light-emitting diodes have revolutionized the lighting market by becoming the most energy-efficient light sources. However, the power grid, in example electricity delivery system, is built based on alternating current, which raises ...
Mikołaj Żak, Grzegorz Muziol, Marcin Siekacz, Artem Bercha, Mateusz Hajdel, Krzesimir Nowakowski-Szkudlarek, Artur Lachowski, Mikołaj Chlipała, Paweł Wolny, Henryk Turski, Czesław Skierbiszewski   +10 more
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Anomalous efficiency elevation of quantum-dot light-emitting diodes induced by operational degradation

Nature Communications, 2023
Quantum-dot light-emitting diodes promise a new generation of high-performance and solution-processed electroluminescent light sources. Understanding the operational degradation mechanisms of quantum-dot light-emitting diodes is crucial for their ...
Siyu He, Xiaoqi Tang, Yunzhou Deng, Ni Yin, Wangxiao Jin, Xiuyuan Lu, Desui Chen, Chenyang Wang, Tulai Sun, Qi Chen, Yizheng Jin   +10 more
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Extracting the inherent ideality factor of a diode from electrical current–voltage characteristics

Electronics Letters, 2023
The ideality factor of a diode gives the information on the current conduction or recombination processes occurring inside the device. The ideality factor obtained from the electrical current–voltage (I–V) characteristics by the conventional method is ...
Jaehyeok Park, Chaeyoon Yu, Sangjin Min, Jong‐In Shim, Dong‐Soo Shin   +4 more
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Enhancing the Light Extraction Efficiency in Micro‐Organic Light‐Emitting Diodes with Metalens

Advanced Photonics Research, 2021
Due to the total internal reflection caused by the mismatch of the refractive indices between organic layers and oxide layers within an organic light‐emitting diode (OLED), most of the light energy is trapped inside the device; if the size of an OLED is ...
Jingen Lin, Qian Sun, Weibin Feng, Songming Guo, Zhihao Liu, Haowen Liang, Juntao Li   +6 more
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Critical role of electrons in the short lifetime of blue OLEDs

Nature Communications, 2023
Designing robust blue organic light-emitting diodes is a long-standing challenge in the display industry. The highly energetic states of blue emitters cause various degradation paths, leading to collective luminance drops in a competitive manner. However,
Jaewook Kim, Joonghyuk Kim, Yongjun Kim, Youngmok Son, Youngsik Shin, Hye Jin Bae, Ji Whan Kim, Sungho Nam, Yongsik Jung, Hyeonsu Kim, Sungwoo Kang, Yoonsoo Jung, Kyunghoon Lee, Hyeonho Choi, Woo Youn Kim   +14 more
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The modeling of LED's disposition

Lietuvos Matematikos Rinkinys, 2004
The goal of this work is to construct the scheme of constructing light  – emitting diodes system. The mathematical model was written for a light-emitting diodes lamp. The finite difference technique was used for the discretization of mathematical model.
Jurgita Dabulytė, Feliksas Ivanauskas , Artūras Žukauskas   +2 more
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The effect of using light emitting diodes and fluorescent lamps as different light sources in growth inhibition tests of green alga, diatom, and cyanobacteria.

PLoS ONE, 2021
Aquatic organisms have been used to investigate the safety of chemicals worldwide. One such assessment is an algal growth inhibition test. Algal growth inhibition tests are commonly performed using a growth chamber with fluorescent lamps as the lighting ...
Akira Okamoto, Miyuki Imamura, Kazune Tani, Takeru Matsumoto   +3 more
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STUDY OF MECHANISMS RESPONSIBLE FOR THE EFFICIENCY DEGRADATION OF THE III-NITRIDES LIGHT EMITTING DIODES [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2015
The results for external quantum efficiency degradation of two types of light emitting diodes based on III-nitrides: blue and ultraviolet ones are presented. Existing mechanisms proposed for the degradation are considered briefly.
N. M. Shmidt, A. S. Usikov, E. I. Shabunina, A. E. Chernyakov, S. Y. Kurin, Y. N. Makarov, H. I. Helava, B. P. Papchenko   +7 more
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