Perovskite is a mineral composed of calcium titanium oxide (CaTiO2) discovered by a Russian scientist, Gustav Rose, in 1839 and the research was further carried out by Russian mineralogist Lev Perovski therefore this mineral was named as Perovskite.
After that, a lot of research has been conducted and it has been applied to LEDs and solar cells due to its characteristics as a photoelectric device. It has the advantage of fast carrier mobility and low unit price.
However, as there are only advantages, it has disadvantages. When making photoelectric devices, especially LEDs, it has a deep HOMO due to the characteristics of the perovskite material, which makes it difficult to inject holes. And the life is short due to the problem of stability.
A lot of research is being conducted to solve this problem.
2020 IMID Oral session : Enhancing the Efficiency and Lifetime of Perovskite Light Emitting Diodes with Size-controlled PVP capped Gold Nanoparticles
[Topic : Emerging Display Technologies], Changmin Lee, Dong Hyun Kim, Hyung Ju Chae, Jun Su Yang,.Gyu Chan Lee, Ui Jun Lee, Prof. Seung Yoon Ryu
2020 MRS fall : Highly Efficient and Stable Perovskite Light-Emitting Diodes by Plasmon Effect Using Hydrophobic PVP Capped Gold Nanoparticles
[Topic : Emerging Light-Emitting Materials and Devices— Halide Perovskites, Quantum Dots and Other Nanoscale Emitters] Changmin Lee, Dong Hyun Kim, Hyung Ju Chae, Jun Su Yang,.Gyu Chan Lee, Ui Jun Lee, Prof. Seung Yoon Ryu