Perovskite white light emitting diodes: A review

Abstract

Recently, there has been a great deal of interest in the potential of perovskite materials for white light emitting diodes (WLEDs). This is due to the remarkable optical properties of these materials, which make them ideal for the application of WLEDs. In this review article, we discuss the recent progress made in the development of WLEDs based on perovskite materials and their potential for use in future applications. The first generation of WLEDs based on perovskite materials was developed in the early 2000s. These LEDs were based on a single layer of organic-inorganic perovskite material, which was used to generate a single emission peak in the visible spectrum. This single peak emission was then combined with a phosphor coating in order to generate white light. Since then, several improvements have been made to the design and structure of WLEDs, resulting in higher efficiency and increased light output. In the past few years, there have been several advances in the design of WLEDs based on perovskite materials. For example, the use of multi-layer perovskites and the addition of quantum dots have enabled the generation of broader emission spectra, resulting in improved color rendition and higher luminous efficacy. In addition, the use of nanostructured perovskites has enabled the generation of LEDs with higher efficiencies and improved thermal stability. Overall, perovskite materials have shown great potential for use in WLEDs. These materials are relatively easy to manufacture, and their optical properties can be tailored to generate a wide range of colors and emission spectra. Additionally, their low cost and high efficiency make them attractive for use in a wide range of applications. In conclusion, perovskite materials are a promising material for the development of WLED technology. The recent advances in the design and fabrication of these LEDs have enabled them to achieve high efficiencies and improved color rendition. As such, they are an attractive option for applications such as automotive lighting and lighting for homes and businesses.