DataVXAdvanced Optical MaterialsPaper
journal article·2025-04Open access

Efficient and Long Lifetime Red InP‐Based QLEDs Enabled by Simultaneously Improved Carrier Injection Balance and Depressed Leakage (Advanced Optical Materials 12/2025)

Shuaibing Wang, Wanying Yang, Yu Li, Ouyang Lin, Wentao Niu, Mengyuan Chen, Binbin Hu, Fei Chen, Huaibin Shen, Feng Teng, Chunhe Yang, Aiwei Tang

Advanced Optical Materials· Volume 13· Issue 12
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Source abstract

Abstract

Light-Emitting Diodes Polyvinyl pyrrolidone (PVP) is introduced as an intermediate layer to block excessive electron injection into the InP-based QDs layer while simultaneously reducing leakage current. The optimized device achieves a peak external quantum efficiency (EQE) of 23.5% and a long T95 operational lifetime of over 800 hours at an initial luminance of 1,000 cd m−2 for red InP-based QLEDs emitting at 624 nm. More details can be found in article 2402677 by Fei Chen, Huaibin Shen, Aiwei Tang, and co-workers.
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Research context

OpenAlex topics: Photonic and Optical Devices · Semiconductor Lasers and Optical Devices · Optical Network Technologies

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Affiliations

Key Laboratory of Luminescence and Optical Information Ministry of Education School of Physical Science and Engineering Beijing Jiaotong University Beijing 100044 China

Key Laboratory for Special Functional Materials of Ministry of Education National & Local Joint Engineering Research Centre for High‐efficiency Display and Lighting Technology School of Materials and Engineering Collaborative Innovation Centre of Nano Functional Materials and Applications Henan University Kaifeng 475004 China

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