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High-performance quasi-2D perovskite light-emitting diodes: from materials to devices 被引量:18

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摘要 Quasi-two-dimensional(quasi-2D)perovskites have attracted extraordinary attention due to their superior semiconducting properties and have emerged as one of the most promising materials for next-generation lightemitting diodes(LEDs).The outstanding optical properties originate from their structural characteristics.In particular,the inherent quantum-well structure endows them with a large exciton binding energy due to the strong dielectricand quantum-confinement effects;the corresponding energy transfer among different n-value species thus results in high photoluminescence quantum yields(PLQYs),particularly at low excitation intensities.The review herein presents an overview of the inherent properties of quasi-2D perovskite materials,the corresponding energy transfer and spectral tunability methodologies for thin films,as well as their application in high-performance LEDs.We then summarize the challenges and potential research directions towards developing high-performance and stable quasi-2D PeLEDs.The review thus provides a systematic and timely summary for the community to deepen the understanding of quasi-2D perovskite materials and resulting LED devices.
出处 《Light(Science & Applications)》 SCIE EI CAS CSCD 2021年第4期516-541,共26页 光(科学与应用)(英文版)
基金 the National Natural Science Foundation of China(Nos.21771114,91956130) the Natural Science Foundation of Tianjin(18YFZCGX00580).M.Yuan acknowledges financial support from Distinguished Young Scholars of Tianjin(No.19JGQJC62000).
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