Investigation of high-performance perovskite nanocrystals for inkjet-printed color conversion layers with superior color purity

被引:25
作者
Lee, Sang Yoon [1 ,2 ]
Lee, Geonho [1 ,3 ]
Kim, Do Yeob [4 ]
Jang, Seong Hyun [1 ,2 ]
Choi, In [5 ]
Park, Jongwook [3 ]
Park, Hyung-Ki [6 ]
Jung, Jae Woong [2 ]
Cho, Kwan Hyun [4 ]
Choi, Jun [1 ]
机构
[1] Korea Inst Ind Technol KITECH, Human Convergence Technol R&D Dept, Ansan 15588, South Korea
[2] Kyung Hee Univ, Dept Adv Mat Engn Informat & Elect, Yongin 17104, South Korea
[3] Kyung Hee Univ, Dept Chem Engn, Yongin 17104, South Korea
[4] Korea Inst Ind Technol KITECH, Mfg Proc Platform R&D Dept, Ansan 15588, South Korea
[5] Hanyang Univ, Dept Chem Engn, Seoul 04763, South Korea
[6] Korea Inst Ind Technol KITECH, Funct Mat & Components R&D Grp, Kangnung 25440, South Korea
基金
新加坡国家研究基金会;
关键词
STABILITY; FILM;
D O I
10.1063/5.0044284
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We synthesized cesium lead-halide perovskite colloidal nanocrystals using the hot injection method for wide-color-gamut low-cost displays. An efficient surface defect passivation technique was applied to further improve the optical performance of the green and red perovskite nanocrystals. The prepared perovskite nanocrystal solutions were formulated into inkjet printable homogeneous inks and uniformly printed on the substrate with appropriate surface control. They formed the wide-color-gamut color conversion layers of quantum dot organic light-emitting diode displays. We confirmed the excellent photophysical properties of the synthesized green/red perovskite nanocrystals and the inkjet printed color conversion layers with a photoluminescence quantum yield of 99.7%/96.2% and a wide color reproduction range of 117%.
引用
收藏
页数:11
相关论文
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