Preparation of halide perovskite-polymer composite films for the two-color white OLED displays
발표자
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초록
내용
Recently, organic–inorganic lead halide perovskites materials have been intensively investigated as important materials for various optoelectronic applications. Especially, they are applicable as light emitters for organic light emitting diodes due to the color tunable characteristics. We demonstrate two color white OLED display by using color-converting films based on the organic–inorganic lead halide perovskites–polymer composites layer. FAPbBr3-PVDF composite layers with different thickness were successfully prepared using in-situ fabrication method for the color converting layer. The FAPbBr3 nanocrystal with well defined-structures could be confirmed from XRD results. Finally, we also demonstrate the OLED devices with the 50 um-thickness FAPbBr3-PVDF composite films used as the color converting layer. It could be confirmed that the white emission has the color coordinates of (0.326, 0.353).