Perovskite quantum dots for light-emitting devices

Perovskite quantum dots (QDs) have been hotly pursued in recent decades owing to their quantum confinement effect and defect-tolerant nature. Their unique optical properties, such as high photoluminescence quantum yield (PLQY) approaching unity, narrow emission bandwidth, tunable wavelength spanning...

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Bibliographic Details
Published inNanoscale Vol. 11; no. 41; pp. 19119 - 19139
Main Authors Li, Yun-Fei, Feng, Jing, Sun, Hong-Bo
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 07.11.2019
Subjects
Biocompatibility
Composition
Configuration management
Light emitting diodes
Optical properties
Optimization
Perovskites
Photoluminescence
Quantum confinement
Quantum dots
Toxicity
Visible spectrum
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Summary:Perovskite quantum dots (QDs) have been hotly pursued in recent decades owing to their quantum confinement effect and defect-tolerant nature. Their unique optical properties, such as high photoluminescence quantum yield (PLQY) approaching unity, narrow emission bandwidth, tunable wavelength spanning the entire visible spectrum, and compatibility with flexible/stretchable electronics, render perovskite QDs promising for next-generation solid lighting sources and information displays. Herein, the advances in perovskite QDs and their applications in LEDs are reviewed. Strategies to fabricate efficient perovskite QDs and device configuration, including material composition design, synthetic methods, surface engineering, and device optimization, are investigated and highlighted. Moreover, the main challenges in perovskite QDs of instability and toxicity (lead-based) are identified, while the solutions undertaken with respect to composition engineering, device encapsulation, and lead-replacement QDs are demonstrated. Meanwhile, perspectives for the further development of perovskite QDs and corresponding LEDs are presented. Perovskite QDs are promising platforms for light-emitting applications. Advances in perovskite QDs, including optoelectronic properties and device performance are discussed.
Bibliography:Jing Feng received her B.S. and Ph.D. degrees from Jilin University in 1997 and 2003, respectively. She worked as a postdoctoral researcher in RIKEN, Japan, from 2003 to 2006. In 2006, she joined Jilin University, and now she is a professor at the College of Electronic Science and Engineering and State Key Lab of Integrated Optoelectronics. Her research interests have been focused on organic optoelectronic devices.
Hong-Bo Sun received his B.S. and Ph.D. degrees from Jilin University in 1992 and 1996, respectively. He worked as a postdoctoral researcher at the University of Tokushima, Japan, from 1996 to 2000, and then as an assistant professor at Osaka University, Japan. In 2005, he was promoted to a full professor (Changjiang Scholar) at Jilin University, China. In 2017, he joined Tsinghua University, and now he is a professor at the State Key Lab of Precision Measurement Technology and Instruments and Department of Precision Instrument, Tsinghua University, China. His research interests have been focused on ultrafast optoelectronics. In 2017, he was selected as an IEEE fellow, OSA fellow, SPIE fellow, and COS fellow.
Yun-Fei Li received her B.S. and Ph.D. degrees from Jilin University in 2012 and 2018, respectively. She is a lecturer at the School of Electronics and Information Engineering, Hebei University of Technology. Her current research includes organic light-emitting devices and perovskite light-emitting devices.
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ISSN:2040-3364
2040-3372
2040-3372
DOI:10.1039/c9nr06191f