Low sublimation temperature cesium pivalate complex as an efficient electron injection material for organic light-emitting diode devices

Ronggang Shangguan; Guangyuan Mu; Xianfeng Qiao; Lei Wang; Kok Wai CHEAH; Xunjin ZHU; Chin H. Chen

doi:10.1016/j.orgel.2011.08.005

Low sublimation temperature cesium pivalate complex as an efficient electron injection material for organic light-emitting diode devices

Ronggang Shangguan, Guangyuan Mu, Xianfeng Qiao, Lei Wang^*, Kok Wai CHEAH, Xunjin ZHU, Chin H. Chen

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › peer-review

18 Citations (Scopus)

Abstract

Cesium pivalate ((CH₃)₃CCOOCs) has been synthesized and applied as an electron injection material for organic light-emitting diodes, which showed low sublimation temperature of 180 °C. Typical bilayer structure of ITO/NPB (60 nm)/Alq₃ (50 nm)/EIL/Al was used to evaluate the electron injection efficacy of (CH₃)₃CCOOCs, the results showed (CH₃)₃CCOOCs/Al exhibits better electron injection than LiF/Al cathode and the power efficiency was improved by about 19% at current density of 50 mA/cm². More interestingly, in the typical three layer OLED structure ITO/2-TNATA (60 nm)/NPB (10 nm)/Alq₃:2% C545T (40 nm)/MADN (15 nm)/(CH₃)₃CCOOCs (2 nm)/Al, the maximum current efficiency is up to 20 cd/A with Commission Internationale d'Eclairage (CIE_x,_y) color coordinates of (x = 0.30, y = 0.65) at current density of 140 mA/cm², which indicates that the non-aromatic alkali metal complex can also have good match with the chemically stable compound and exhibit good electron injection properties.

Original language	English
Pages (from-to)	1957-1962
Number of pages	6
Journal	Organic Electronics
Volume	12
Issue number	11
DOIs	https://doi.org/10.1016/j.orgel.2011.08.005
Publication status	Published - Nov 2011

Scopus Subject Areas

Electronic, Optical and Magnetic Materials
Biomaterials
Chemistry(all)
Condensed Matter Physics
Materials Chemistry
Electrical and Electronic Engineering

User-Defined Keywords

Cesium pivalate
Electron injection material
Organic light-emitting devices

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10.1016/j.orgel.2011.08.005

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@article{50aaa1b27c5e4ba8b9048196629ef763,

title = "Low sublimation temperature cesium pivalate complex as an efficient electron injection material for organic light-emitting diode devices",

abstract = "Cesium pivalate ((CH3)3CCOOCs) has been synthesized and applied as an electron injection material for organic light-emitting diodes, which showed low sublimation temperature of 180 °C. Typical bilayer structure of ITO/NPB (60 nm)/Alq3 (50 nm)/EIL/Al was used to evaluate the electron injection efficacy of (CH3)3CCOOCs, the results showed (CH3)3CCOOCs/Al exhibits better electron injection than LiF/Al cathode and the power efficiency was improved by about 19% at current density of 50 mA/cm2. More interestingly, in the typical three layer OLED structure ITO/2-TNATA (60 nm)/NPB (10 nm)/Alq3:2% C545T (40 nm)/MADN (15 nm)/(CH3)3CCOOCs (2 nm)/Al, the maximum current efficiency is up to 20 cd/A with Commission Internationale d'Eclairage (CIEx,y) color coordinates of (x = 0.30, y = 0.65) at current density of 140 mA/cm2, which indicates that the non-aromatic alkali metal complex can also have good match with the chemically stable compound and exhibit good electron injection properties.",

keywords = "Cesium pivalate, Electron injection material, Organic light-emitting devices",

author = "Ronggang Shangguan and Guangyuan Mu and Xianfeng Qiao and Lei Wang and CHEAH, {Kok Wai} and Xunjin ZHU and Chen, {Chin H.}",

note = "Funding Information: This work was supported by the central allocation grant from Dong hu New & High Technology Development Zone of Wuhan City , the Research Grants Council of Hong Kong SAR (GHP/057/05) and Faculty Research Grant (FRG/05-06/II-43) of HKBU . ",

year = "2011",

month = nov,

doi = "10.1016/j.orgel.2011.08.005",

language = "English",

volume = "12",

pages = "1957--1962",

journal = "Organic Electronics",

issn = "1566-1199",

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T1 - Low sublimation temperature cesium pivalate complex as an efficient electron injection material for organic light-emitting diode devices

AU - Shangguan, Ronggang

AU - Mu, Guangyuan

AU - Qiao, Xianfeng

AU - Wang, Lei

AU - CHEAH, Kok Wai

AU - ZHU, Xunjin

AU - Chen, Chin H.

N1 - Funding Information: This work was supported by the central allocation grant from Dong hu New & High Technology Development Zone of Wuhan City , the Research Grants Council of Hong Kong SAR (GHP/057/05) and Faculty Research Grant (FRG/05-06/II-43) of HKBU .

PY - 2011/11

Y1 - 2011/11

N2 - Cesium pivalate ((CH3)3CCOOCs) has been synthesized and applied as an electron injection material for organic light-emitting diodes, which showed low sublimation temperature of 180 °C. Typical bilayer structure of ITO/NPB (60 nm)/Alq3 (50 nm)/EIL/Al was used to evaluate the electron injection efficacy of (CH3)3CCOOCs, the results showed (CH3)3CCOOCs/Al exhibits better electron injection than LiF/Al cathode and the power efficiency was improved by about 19% at current density of 50 mA/cm2. More interestingly, in the typical three layer OLED structure ITO/2-TNATA (60 nm)/NPB (10 nm)/Alq3:2% C545T (40 nm)/MADN (15 nm)/(CH3)3CCOOCs (2 nm)/Al, the maximum current efficiency is up to 20 cd/A with Commission Internationale d'Eclairage (CIEx,y) color coordinates of (x = 0.30, y = 0.65) at current density of 140 mA/cm2, which indicates that the non-aromatic alkali metal complex can also have good match with the chemically stable compound and exhibit good electron injection properties.

AB - Cesium pivalate ((CH3)3CCOOCs) has been synthesized and applied as an electron injection material for organic light-emitting diodes, which showed low sublimation temperature of 180 °C. Typical bilayer structure of ITO/NPB (60 nm)/Alq3 (50 nm)/EIL/Al was used to evaluate the electron injection efficacy of (CH3)3CCOOCs, the results showed (CH3)3CCOOCs/Al exhibits better electron injection than LiF/Al cathode and the power efficiency was improved by about 19% at current density of 50 mA/cm2. More interestingly, in the typical three layer OLED structure ITO/2-TNATA (60 nm)/NPB (10 nm)/Alq3:2% C545T (40 nm)/MADN (15 nm)/(CH3)3CCOOCs (2 nm)/Al, the maximum current efficiency is up to 20 cd/A with Commission Internationale d'Eclairage (CIEx,y) color coordinates of (x = 0.30, y = 0.65) at current density of 140 mA/cm2, which indicates that the non-aromatic alkali metal complex can also have good match with the chemically stable compound and exhibit good electron injection properties.

KW - Cesium pivalate

KW - Electron injection material

KW - Organic light-emitting devices

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JO - Organic Electronics

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ER -

Low sublimation temperature cesium pivalate complex as an efficient electron injection material for organic light-emitting diode devices

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