High-Efficiency Bottom-Emitting Organic Light-Emitting Diodes with Double Aluminum as Electrodes

Hong Mei Zhang; Dan Bei Wang; Yuan Wu Wu; Da Fang; Wei Huang

doi:10.1088/0256-307X/32/10/108501

High-Efficiency Bottom-Emitting Organic Light-Emitting Diodes with Double Aluminum as Electrodes

Hong Mei Zhang, Dan Bei Wang, Yuan Wu Wu, Da Fang, Wei Huang

Nanjing University of Posts and Telecommunications

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

Abstract

Bottom-emitting organic light-emitting diodes (BOLEDs), using Al/MoO₃ as the semitransparent anode and LiF/Al as the reflective cathode and Alq₃ as the emitter, are fabricated. At the same time, the performance improvement of the BOLEDs having a capping layer inserted between the semitransparent anode and the glass substrate is studied. The optimized microcavity BOLED shows a current efficiency (5.49 cd/A) enhancement of 10% compared with a conventional BOLED based on ITO (5.0 cd/A). Slight color variation is observed in 120° forward viewing angle with 50nm BCP as the capping layer. Strong dependence of efficiency on Al anode thickness and the thickness and refractor index of the capping layer is explained. The results indicate that the BOLEDs with the double-aluminum electrode have potential practical applications.

Original language	English
Article number	108501
Journal	Chinese Physics Letters
Volume	32
Issue number	10
DOIs	https://doi.org/10.1088/0256-307X/32/10/108501
State	Published - 2015
Externally published	Yes

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title = "High-Efficiency Bottom-Emitting Organic Light-Emitting Diodes with Double Aluminum as Electrodes",

abstract = "Bottom-emitting organic light-emitting diodes (BOLEDs), using Al/MoO3 as the semitransparent anode and LiF/Al as the reflective cathode and Alq3 as the emitter, are fabricated. At the same time, the performance improvement of the BOLEDs having a capping layer inserted between the semitransparent anode and the glass substrate is studied. The optimized microcavity BOLED shows a current efficiency (5.49 cd/A) enhancement of 10% compared with a conventional BOLED based on ITO (5.0 cd/A). Slight color variation is observed in 120° forward viewing angle with 50nm BCP as the capping layer. Strong dependence of efficiency on Al anode thickness and the thickness and refractor index of the capping layer is explained. The results indicate that the BOLEDs with the double-aluminum electrode have potential practical applications.",

author = "Zhang, {Hong Mei} and Wang, {Dan Bei} and Wu, {Yuan Wu} and Da Fang and Wei Huang",

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year = "2015",

doi = "10.1088/0256-307X/32/10/108501",

language = "英语",

volume = "32",

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T1 - High-Efficiency Bottom-Emitting Organic Light-Emitting Diodes with Double Aluminum as Electrodes

AU - Zhang, Hong Mei

AU - Wang, Dan Bei

AU - Wu, Yuan Wu

AU - Fang, Da

AU - Huang, Wei

PY - 2015

Y1 - 2015

N2 - Bottom-emitting organic light-emitting diodes (BOLEDs), using Al/MoO3 as the semitransparent anode and LiF/Al as the reflective cathode and Alq3 as the emitter, are fabricated. At the same time, the performance improvement of the BOLEDs having a capping layer inserted between the semitransparent anode and the glass substrate is studied. The optimized microcavity BOLED shows a current efficiency (5.49 cd/A) enhancement of 10% compared with a conventional BOLED based on ITO (5.0 cd/A). Slight color variation is observed in 120° forward viewing angle with 50nm BCP as the capping layer. Strong dependence of efficiency on Al anode thickness and the thickness and refractor index of the capping layer is explained. The results indicate that the BOLEDs with the double-aluminum electrode have potential practical applications.

AB - Bottom-emitting organic light-emitting diodes (BOLEDs), using Al/MoO3 as the semitransparent anode and LiF/Al as the reflective cathode and Alq3 as the emitter, are fabricated. At the same time, the performance improvement of the BOLEDs having a capping layer inserted between the semitransparent anode and the glass substrate is studied. The optimized microcavity BOLED shows a current efficiency (5.49 cd/A) enhancement of 10% compared with a conventional BOLED based on ITO (5.0 cd/A). Slight color variation is observed in 120° forward viewing angle with 50nm BCP as the capping layer. Strong dependence of efficiency on Al anode thickness and the thickness and refractor index of the capping layer is explained. The results indicate that the BOLEDs with the double-aluminum electrode have potential practical applications.

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JO - Chinese Physics Letters

JF - Chinese Physics Letters

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High-Efficiency Bottom-Emitting Organic Light-Emitting Diodes with Double Aluminum as Electrodes

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