Metal Halide Perovskites Blue Emitters and Light‐Emitting Diodes: A Review on Morphological and Molecular Dimensions

Author:

Gao Long1ORCID,Gong Yuyan2ORCID,Zhang Xiaoyu1ORCID,Yip Hin‐Lap345ORCID,Shen Liang6ORCID,Zhang Jiaqi1ORCID

Affiliation:

1. College of Materials Science and Engineering, Key Laboratory of Automobile Materials Ministry of Education, Jilin University Changchun 130012 China

2. School of Engineering University of Warwick Coventry Coventry CV 7AL UK

3. Department of Materials Science and Engineering City University of Hong Kong Kowloon, Hong Kong 999077 China

4. School of Energy and Environment City University of Hong Kong Kowloon, Hong Kong 999077 China

5. Hong Kong Institute for Clean Energy City University of Hong Kong Kowloon, Hong Kong 999077 China

6. State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, International Center of Future Science Jilin University Changchun 130012 China

Abstract

AbstractMetal halide perovskites have recently garnered significant attention as a fundamental emitter due to their high carrier mobility, strong light absorption, high monochromaticity, and tunable emission bandgap. However, the brightness, efficiency, and stability issues have limited their potential applications in blue region. To break through these limitations, researchers have investigated different dimensions of perovskites to seek an excellent emitter. To date, the quantum confinement and coordination octahedron monomer arrangement perovskites still lack of systematic cognition. In this review, the molecular and morphological dimensions of blue perovskite emitters are summarized. The differences and relationships between these dimensions in terms of their fabrication and properties are also explored. Furthermore, recent advances in blue light enhancement strategies to address the challenges in various morphological and molecular structures are highlighted. Finally, the main challenges and future directions are discussed for the development of perovskite blue LEDs.

Funder

National Key Research and Development Program of China

National Natural Science Foundation of China

Natural Science Foundation of Jilin Province

Publisher

Wiley

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