Metal Doping/Alloying of Cesium Lead Halide Perovskite Nanocrystals and their Applications in Light‐Emitting Diodes with Enhanced Efficiency and Stability

Metal halide perovskite nanocrystals (NCs) have demonstrated great advances for light‐emitting diodes (LEDs) applications, owing to their excellent optical, electrical properties and cost‐effective solution‐processing potentials. Tremendous progress has been made in perovskite NCs‐based LEDs during...

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Bibliographic Details
Published inIsrael journal of chemistry Vol. 59; no. 8; pp. 695 - 707
Main Authors Kumawat, Naresh Kumar, Yuan, Zhongcheng, Bai, Sai, Gao, Feng
Format Journal Article
LanguageEnglish
Published Haifa Wiley Subscription Services, Inc 01.08.2019
Subjects
Alloying
Cesium
Cesium base alloys
Doping
Efficiency
Electrical properties
Lead compounds
Light emission
Light emitting diodes
metal doping
Metal halides
Nanocrystals
Optical properties
Optoelectronics
Organic light emitting diodes
Perovskite nanocrystals
Perovskites
Quantum efficiency
Stability
metal doping
light-emitting diodes
alloying
Perovskite nanocrystals
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Summary:Metal halide perovskite nanocrystals (NCs) have demonstrated great advances for light‐emitting diodes (LEDs) applications, owing to their excellent optical, electrical properties and cost‐effective solution‐processing potentials. Tremendous progress has been made in perovskite NCs‐based LEDs during the past several years, with the external quantum efficiency (EQE) boosted to over 20 %. Recently, metal doping/alloying strategy has been explored to finely tune the optoelectronic properties and enhance material stability of perovskite NCs, leading to further improved device efficiency and stability of the obtained perovskite NCs‐based LEDs. In this review, we summarize recent progress on the metal doping/alloying of perovskite NCs and their applications in LEDs. We focus on the effects of different metal doping strategies on the structural and optoelectronic properties of the perovskite NCs. In addition, several works on high‐performance LEDs based on metal doped/alloyed perovskite NCs with different light emission colours are highlighted. Finally, we present an outlook on employing metal doping/alloying strategies to further improve the device efficiency and stability of LEDs based on perovskite NCs. Metal Doping/Alloying of Cesium Lead Halide Perovskite Nanocrystals and their Applications in Light‐emitting Diodes with Enhanced Efficiency and Stability
ISSN:0021-2148
1869-5868
DOI:10.1002/ijch.201900031