Perovskite quantum dots with potassium oleate ligands for light-emitting diode applications

Autor:	Yusaku Morikawa, Ryota Sato, Naoaki Oshita, Taisei Kimura, Kenshin Yoshida, Mao Goto, Satoshi Asakura, Motofumi Kashiwagi, Akito Masuhara
Rok vydání:	2023
Předmět:	General Engineering General Physics and Astronomy
Zdroj:	Applied Physics Express. 16:055001
ISSN:	1882-0786 1882-0778
Popis:	Lead tri-halide perovskite quantum dots (PeQDs) have attracted attention as a light source such as LEDs. However, this causes a decrease in not only their dispersibility but also photoluminescence quantum yield (PLQY), which is one of the factors for external quantum efficiency (EQE) of LEDs when the ligand as an insulating component is removed. Herein, we proposed a strategy to prepare PeQDs, which selectively coordinated potassium oleate on the surface of PeQDs. As a result, PeQDs were successfully prepared, while maintaining the dispersibility and high PLQY after removing the ligands and achieving improved EQE.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b6c6ec914df5265c1aa79b6a979f654b https://doi.org/10.35848/1882-0786/accf5f Zobrazit plný text záznamu