Organometal halide perovskite as hole injection enhancer in organic light-emitting diode

Yaomiao Feng; Jiaju Xu; Haiquan Shan; Lei Dong; Xize Sun; Qikun Hu; Yulong Wang; V. A.L. Roy; Zong Xiang Xu

doi:10.1016/j.orgel.2017.09.027

Organometal halide perovskite as hole injection enhancer in organic light-emitting diode

Yaomiao Feng
, Jiaju Xu
, Haiquan Shan
, Lei Dong
, Xize Sun
, Qikun Hu
, Yulong Wang
, V. A.L. Roy
, Zong Xiang Xu

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

10 Citations (Scopus)

Abstract

We introduce an organometal halide perovskite (CH₃NH₃PbI₃), as a hole injection layer (HIL) to accelerate hole injection and transport in tris-(8-hydroxyquinoline) aluminum-based organic light-emitting diodes (OLEDs). The excellent charge mobility of CH₃NH₃PbI₃ along with the better interface contacts induced by the CH₃NH₃PbI₃ HIL improved the charge balance and thus enhanced device performance compared with that of OLEDs without a HIL and with a poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) HIL. Maximum luminance of 19110 cd m⁻² and power efficiency of 3.210 lm W⁻¹ were obtained. Also, besides more balanced charge recombination, the non-aqueous fabrication of the perovskite HIL and the chemical stability of indium tin oxide in contact with CH₃NH₃PbI₃ led to increased device stability and durability, giving a half-life time as long as 31.7 h.

Original language	English
Pages (from-to)	257-263
Number of pages	7
Journal	Organic Electronics
Volume	51
DOIs	https://doi.org/10.1016/j.orgel.2017.09.027
Publication status	Published - Dec 2017
Externally published	Yes

Keywords

Hole injection layer
Organic light-emitting diode
Organometal halide perovskites

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10.1016/j.orgel.2017.09.027

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@article{cb425ff0ea26470498607b9cbe985080,

title = "Organometal halide perovskite as hole injection enhancer in organic light-emitting diode",

abstract = "We introduce an organometal halide perovskite (CH3NH3PbI3), as a hole injection layer (HIL) to accelerate hole injection and transport in tris-(8-hydroxyquinoline) aluminum-based organic light-emitting diodes (OLEDs). The excellent charge mobility of CH3NH3PbI3 along with the better interface contacts induced by the CH3NH3PbI3 HIL improved the charge balance and thus enhanced device performance compared with that of OLEDs without a HIL and with a poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) HIL. Maximum luminance of 19110 cd m−2 and power efficiency of 3.210 lm W−1 were obtained. Also, besides more balanced charge recombination, the non-aqueous fabrication of the perovskite HIL and the chemical stability of indium tin oxide in contact with CH3NH3PbI3 led to increased device stability and durability, giving a half-life time as long as 31.7 h.",

keywords = "Hole injection layer, Organic light-emitting diode, Organometal halide perovskites",

author = "Yaomiao Feng and Jiaju Xu and Haiquan Shan and Lei Dong and Xize Sun and Qikun Hu and Yulong Wang and Roy, \{V. A.L.\} and Xu, \{Zong Xiang\}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

month = dec,

doi = "10.1016/j.orgel.2017.09.027",

language = "English",

volume = "51",

pages = "257--263",

}

TY - JOUR

T1 - Organometal halide perovskite as hole injection enhancer in organic light-emitting diode

AU - Feng, Yaomiao

AU - Xu, Jiaju

AU - Shan, Haiquan

AU - Dong, Lei

AU - Sun, Xize

AU - Hu, Qikun

AU - Wang, Yulong

AU - Roy, V. A.L.

AU - Xu, Zong Xiang

PY - 2017/12

Y1 - 2017/12

N2 - We introduce an organometal halide perovskite (CH3NH3PbI3), as a hole injection layer (HIL) to accelerate hole injection and transport in tris-(8-hydroxyquinoline) aluminum-based organic light-emitting diodes (OLEDs). The excellent charge mobility of CH3NH3PbI3 along with the better interface contacts induced by the CH3NH3PbI3 HIL improved the charge balance and thus enhanced device performance compared with that of OLEDs without a HIL and with a poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) HIL. Maximum luminance of 19110 cd m−2 and power efficiency of 3.210 lm W−1 were obtained. Also, besides more balanced charge recombination, the non-aqueous fabrication of the perovskite HIL and the chemical stability of indium tin oxide in contact with CH3NH3PbI3 led to increased device stability and durability, giving a half-life time as long as 31.7 h.

AB - We introduce an organometal halide perovskite (CH3NH3PbI3), as a hole injection layer (HIL) to accelerate hole injection and transport in tris-(8-hydroxyquinoline) aluminum-based organic light-emitting diodes (OLEDs). The excellent charge mobility of CH3NH3PbI3 along with the better interface contacts induced by the CH3NH3PbI3 HIL improved the charge balance and thus enhanced device performance compared with that of OLEDs without a HIL and with a poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) HIL. Maximum luminance of 19110 cd m−2 and power efficiency of 3.210 lm W−1 were obtained. Also, besides more balanced charge recombination, the non-aqueous fabrication of the perovskite HIL and the chemical stability of indium tin oxide in contact with CH3NH3PbI3 led to increased device stability and durability, giving a half-life time as long as 31.7 h.

KW - Hole injection layer

KW - Organic light-emitting diode

KW - Organometal halide perovskites

UR - https://www.scopus.com/pages/publications/85029535147

U2 - 10.1016/j.orgel.2017.09.027

DO - 10.1016/j.orgel.2017.09.027

M3 - Article

AN - SCOPUS:85029535147

SN - 1566-1199

VL - 51

SP - 257

EP - 263

JO - Organic Electronics

JF - Organic Electronics

ER -

Organometal halide perovskite as hole injection enhancer in organic light-emitting diode

Abstract

Keywords

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