Recent advances in two-dimensional perovskite materials for light-emitting diodes
Deepika Tyagi,
Vijay Laxmi,
Nilanjan Basu,
Leelakrishna Reddy,
Yibin Tian,
Zhengbiao Ouyang,
Pramoda K. Nayak
Affiliations
Deepika Tyagi
Key Laboratory of Optoelectronics Devices and Systems of Ministry of Education and Guangdong Province, College of Electronic Science and Technology of Shenzhen University, THz Technical Research Center of Shenzhen University, Shenzhen University
Vijay Laxmi
Key Laboratory of Optoelectronics Devices and Systems of Ministry of Education and Guangdong Province, College of Electronic Science and Technology of Shenzhen University, THz Technical Research Center of Shenzhen University, Shenzhen University
Nilanjan Basu
Department of Physics, Indian Institute of Technology Madras
Leelakrishna Reddy
Department of Physics, University of Johannesburg
Yibin Tian
College of Mechatronics and Control Engineering, Shenzhen University
Zhengbiao Ouyang
Key Laboratory of Optoelectronics Devices and Systems of Ministry of Education and Guangdong Province, College of Electronic Science and Technology of Shenzhen University, THz Technical Research Center of Shenzhen University, Shenzhen University
Pramoda K. Nayak
Department of Physics, Indian Institute of Technology Madras
Abstract Light-emitting diodes (LEDs) are an indispensable part of our daily life. After being studied for a few decades, this field still has some room for improvement. In this regard, perovskite materials may take the leading role. In recent years, LEDs have become a most explored topic, owing to their various applications in photodetectors, solar cells, lasers, and so on. Noticeably, they exhibit significant characteristics in developing LEDs. The luminous efficiency of LEDs can be significantly enhanced by the combination of a poor illumination LED with low-dimensional perovskite. In 2014, the first perovskite-based LED was illuminated at room temperature. Furthermore, two-dimensional (2D) perovskites have enriched this field because of their optical and electronic properties and comparatively high stability in ambient conditions. Recent and relevant advancements in LEDs using low-dimensional perovskites including zero-dimensional to three-dimensional materials is reported. The major focus of this article is based on the 2D perovskites and their heterostructures (i.e., a combination of 2D perovskites with transition metal dichalcogenides, graphene, and hexagonal boron nitride). In comparison to 2D perovskites, heterostructures exhibit more potential for application in LEDs. State-of-the-art perovskite-based LEDs, current challenges, and prospects are also discussed. Graphical Abstract
