Affiliation:
1. Department of Electronic & Computer Engineering State Key Laboratory of Advanced Displays and Optoelectronics Technologies The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong SAR 999077 China
2. State Key Laboratory of Photovoltaic Science and Technology Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and Perception Institute of Optoelectronics Fudan University Shanghai 200433 China
3. Department of Chemical and Biological Engineering The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong SAR 999077 China
Abstract
AbstractPerovskite materials, celebrated for their exceptional optoelectronic properties, have seen extensive application in the field of light‐emitting diodes (LEDs), where research is as abundant as the proverbial “carloads of books.” In this review, the research of perovskite materials is delved into from a dimensional perspective, with a focus on the exemplary performance of low‐dimensional perovskite materials in LEDs. This discussion predominantly revolves around perovskite quantum wires and perovskite nanorods. Perovskite quantum wires are versatile in their growth, compatible with both solution‐based and vapor‐phase growth, and can be deposited over large areas—even on spherical substrates—to achieve commendable electroluminescence (EL). Perovskite nanorods, on the other hand, boast a suite of superior characteristics, such as polarization properties and tunability of the transition dipole moment, endowing them with the great potential to enhance light extraction efficiency. Furthermore, zero‐dimensional (0D) perovskite materials like nanocrystals (NCs) are also the subject of widespread research and application. This review reflects on and synthesizes the unique qualities of the aforementioned materials while exploring their vital roles in the development of high‐efficiency perovskite LEDs (PeLEDs).