Efficient blue light-emitting diodes based on quantum-confined bromide perovskite nanostructures

Yang Liu; Jieyuan Cui; Kai Du; He Tian; Zhuofei He; Qiaohui Zhou; Zhaoliang Yang; Yunzhou Deng; Dong Chen; Xiaobing Zuo; Yang Ren; Liang Wang; Haiming Zhu; Baodan Zhao; Dawei Di; Jianpu Wang; Richard H. Friend; Yizheng Jin

doi:10.1038/s41566-019-0505-4

Efficient blue light-emitting diodes based on quantum-confined bromide perovskite nanostructures

Yang Liu, Jieyuan Cui, Kai Du, He Tian, Zhuofei He, Qiaohui Zhou, Zhaoliang Yang, Yunzhou Deng, Dong Chen, Xiaobing Zuo, Yang Ren, Liang Wang, Haiming Zhu, Baodan Zhao, Dawei Di, Jianpu Wang, Richard H. Friend, Yizheng Jin^*

^*Corresponding author for this work

School of Material Science and Engineering

Research output: Contribution to journal › Letter › peer-review

546 Citations (Scopus)

Abstract

The emergence of inorganic–organic hybrid perovskites, a unique class of solution-processable crystalline semiconductors, provides new opportunities for large-area, low-cost and colour-saturated light-emitting diodes (LEDs) ideal for display and solid-state lighting applications¹. However, the performance of blue perovskite LEDs (PeLEDs)^2–11 is far inferior to that of their near-infrared, red and green counterparts^12–19, strongly limiting the practicality of the PeLED technology. Here, we demonstrate blue PeLEDs emitting at 483 nm with colour coordinates of (0.094, 0.184) and operating with a peak external quantum efficiency of up to 9.5% at a luminance of 54 cd m^–2. The devices have a T₅₀ lifetime of 250 s for an initial brightness of 100 cd m^–2. The efficient blue electroluminescence originates from a structure of quantum-confined perovskite nanoparticles embedded within quasi-two-dimensional phases with higher bandgaps, prepared by an antisolvent processing scheme. Our work paves the way towards high-performance PeLEDs in the blue region.

Original language	English
Pages (from-to)	760-764
Number of pages	5
Journal	Nature Photonics
Volume	13
Issue number	11
DOIs	https://doi.org/10.1038/s41566-019-0505-4
Publication status	Published - 1 Nov 2019

Access to Document

10.1038/s41566-019-0505-4

Cite this

@article{83aadfcd14d141098d2c05272964914b,

title = "Efficient blue light-emitting diodes based on quantum-confined bromide perovskite nanostructures",

abstract = "The emergence of inorganic–organic hybrid perovskites, a unique class of solution-processable crystalline semiconductors, provides new opportunities for large-area, low-cost and colour-saturated light-emitting diodes (LEDs) ideal for display and solid-state lighting applications1. However, the performance of blue perovskite LEDs (PeLEDs)2–11 is far inferior to that of their near-infrared, red and green counterparts12–19, strongly limiting the practicality of the PeLED technology. Here, we demonstrate blue PeLEDs emitting at 483 nm with colour coordinates of (0.094, 0.184) and operating with a peak external quantum efficiency of up to 9.5% at a luminance of 54 cd m–2. The devices have a T50 lifetime of 250 s for an initial brightness of 100 cd m–2. The efficient blue electroluminescence originates from a structure of quantum-confined perovskite nanoparticles embedded within quasi-two-dimensional phases with higher bandgaps, prepared by an antisolvent processing scheme. Our work paves the way towards high-performance PeLEDs in the blue region.",

author = "Yang Liu and Jieyuan Cui and Kai Du and He Tian and Zhuofei He and Qiaohui Zhou and Zhaoliang Yang and Yunzhou Deng and Dong Chen and Xiaobing Zuo and Yang Ren and Liang Wang and Haiming Zhu and Baodan Zhao and Dawei Di and Jianpu Wang and Friend, {Richard H.} and Yizheng Jin",

note = "Publisher Copyright: {\textcopyright} 2019, The Author(s), under exclusive licence to Springer Nature Limited.",

year = "2019",

month = nov,

day = "1",

doi = "10.1038/s41566-019-0505-4",

language = "English",

volume = "13",

pages = "760--764",

journal = "Nature Photonics",

issn = "1749-4885",

publisher = "Nature Publishing Group",

number = "11",

}

TY - JOUR

T1 - Efficient blue light-emitting diodes based on quantum-confined bromide perovskite nanostructures

AU - Liu, Yang

AU - Cui, Jieyuan

AU - Du, Kai

AU - Tian, He

AU - He, Zhuofei

AU - Zhou, Qiaohui

AU - Yang, Zhaoliang

AU - Deng, Yunzhou

AU - Chen, Dong

AU - Zuo, Xiaobing

AU - Ren, Yang

AU - Wang, Liang

AU - Zhu, Haiming

AU - Zhao, Baodan

AU - Di, Dawei

AU - Wang, Jianpu

AU - Friend, Richard H.

AU - Jin, Yizheng

PY - 2019/11/1

Y1 - 2019/11/1

N2 - The emergence of inorganic–organic hybrid perovskites, a unique class of solution-processable crystalline semiconductors, provides new opportunities for large-area, low-cost and colour-saturated light-emitting diodes (LEDs) ideal for display and solid-state lighting applications1. However, the performance of blue perovskite LEDs (PeLEDs)2–11 is far inferior to that of their near-infrared, red and green counterparts12–19, strongly limiting the practicality of the PeLED technology. Here, we demonstrate blue PeLEDs emitting at 483 nm with colour coordinates of (0.094, 0.184) and operating with a peak external quantum efficiency of up to 9.5% at a luminance of 54 cd m–2. The devices have a T50 lifetime of 250 s for an initial brightness of 100 cd m–2. The efficient blue electroluminescence originates from a structure of quantum-confined perovskite nanoparticles embedded within quasi-two-dimensional phases with higher bandgaps, prepared by an antisolvent processing scheme. Our work paves the way towards high-performance PeLEDs in the blue region.

AB - The emergence of inorganic–organic hybrid perovskites, a unique class of solution-processable crystalline semiconductors, provides new opportunities for large-area, low-cost and colour-saturated light-emitting diodes (LEDs) ideal for display and solid-state lighting applications1. However, the performance of blue perovskite LEDs (PeLEDs)2–11 is far inferior to that of their near-infrared, red and green counterparts12–19, strongly limiting the practicality of the PeLED technology. Here, we demonstrate blue PeLEDs emitting at 483 nm with colour coordinates of (0.094, 0.184) and operating with a peak external quantum efficiency of up to 9.5% at a luminance of 54 cd m–2. The devices have a T50 lifetime of 250 s for an initial brightness of 100 cd m–2. The efficient blue electroluminescence originates from a structure of quantum-confined perovskite nanoparticles embedded within quasi-two-dimensional phases with higher bandgaps, prepared by an antisolvent processing scheme. Our work paves the way towards high-performance PeLEDs in the blue region.

UR - http://www.scopus.com/inward/record.url?scp=85070808304&partnerID=8YFLogxK

U2 - 10.1038/s41566-019-0505-4

DO - 10.1038/s41566-019-0505-4

M3 - Letter

AN - SCOPUS:85070808304

SN - 1749-4885

VL - 13

SP - 760

EP - 764

JO - Nature Photonics

JF - Nature Photonics

IS - 11

ER -

Efficient blue light-emitting diodes based on quantum-confined bromide perovskite nanostructures

Abstract

Access to Document

Other files and links

Fingerprint

Cite this