Hybridization of CsPbBr1.5I1.5 perovskite quantum dots with 9,9-dihexylfluorene co-oligomer for white electroluminescence

被引：28

作者：

Huang, Chun-Yuan ^{[1
]}

Huang, Shyh-Jer ^{[2
]}

Liu, Ming-Hsuan Martin ^{[1
]}

机构：

[1] Natl Taitung Univ, Dept Appl Sci, Taitung 950, Taiwan

[2] Natl Cheng Kung Univ, Adv Optoelect Technol Ctr, Dept Elect Engn, Inst Microelect, Tainan 701, Taiwan

来源：

ORGANIC ELECTRONICS | 2017年 / 44卷

关键词：

Quaternary cesium lead halides; Perovskite; Quantum dots; Hybrid light-emitting diodes; Electroluminescence; LIGHT-EMITTING-DIODES; NANOCRYSTALS; PHOTOLUMINESCENCE; BRIGHTNESS; EFFICIENCY; STABILITY; DISPLAYS; BR; CL;

D O I：

10.1016/j.orgel.2017.01.042

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Quaternary lead halide CsPbBr1.5I1.5 perovskite quantum dots (PQDs) with cubic shapes and emission wavelength at 566 nm were synthesized by hot injection and carefully characterized to better compensate with blue co-oligomer for white light emission. With a very simple device structure, the electroluminescent hybrid device exhibits a turn-on voltage of 4.7 V, a maximum luminance similar to 1200 cd/ m(2), and steady CIE coordinates of (0.28, 0.33). Compared to the photoluminescence spectrum, the increased electroluminescence from PQDs in the HFSO/PQD composite film of the device strongly suggests that the emission from CsPbBr1.5I1.5 PQDs are partially due to the direct charge injection. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：6 / 10

页数：5

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