Enhancing The Efficiency of White Organic Light-emitting Diode Using Energy Recyclable Photovoltaic Cells

Meiso YOKOYAMA; WU Chung-ming; SU Shui-hsiang

doi:10.3788/fgxb20123301.0001

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Enhancing The Efficiency of White Organic Light-emitting Diode Using Energy Recyclable Photovoltaic Cells

paper | 更新时间：2020-08-12

- Enhancing The Efficiency of White Organic Light-emitting Diode Using Energy Recyclable Photovoltaic Cells
- Chinese Journal of Luminescence Vol. 33, Issue 1, Pages: 1-6(2012)
- 作者机构：
  
  Department of Electronic Engineering, I-Shou University, Kaohsiung City, 84001, Taiwan, China
- 作者简介：
- 基金信息：
  
  Project supported by NSC (98-2221-E-214-003-MY3 and ISU99-01-06)
- DOI：10.3788/fgxb20123301.0001
  CLC： TN383+.1
- Received：07 October 2011，
  
  Revised：13 November 2011，
  
  Published Online：10 January 2012，
  
  Published：10 January 2012
- 稿件说明：
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Meiso YOKOYAMA, WU Chung-ming, SU Shui-hsiang. Enhancing The Efficiency of White Organic Light-emitting Diode Using Energy Recyclable Photovoltaic Cells[J]. 发光学报, 2012,33(1): 1-6

Meiso YOKOYAMA, WU Chung-ming, SU Shui-hsiang. Enhancing The Efficiency of White Organic Light-emitting Diode Using Energy Recyclable Photovoltaic Cells[J]. 发光学报, 2012,33(1): 1-6
Meiso YOKOYAMA, WU Chung-ming, SU Shui-hsiang. Enhancing The Efficiency of White Organic Light-emitting Diode Using Energy Recyclable Photovoltaic Cells[J]. 发光学报, 2012,33(1): 1-6 DOI： 10.3788/fgxb20123301.0001.

Meiso YOKOYAMA, WU Chung-ming, SU Shui-hsiang. Enhancing The Efficiency of White Organic Light-emitting Diode Using Energy Recyclable Photovoltaic Cells[J]. 发光学报, 2012,33(1): 1-6 DOI： 10.3788/fgxb20123301.0001.

摘要

We demonstrate that power recycling is feasible by using a semi-transparent stripped Al electrode as interconnecting layer to merge a white organic light-emitting devices (WOLED) and an organic photovoltaic(OPV) cell. The device is called a PVOLED. It has a glass/ITO/CuPc/m-MTDATA∶V

/NPB/CBP∶FIrpic∶DCJTB/BPhen/LiF/Al/P3HT∶PCBM/V

/Al structure. The power recycling efficiency of 10.133% is achieved under the WOLED of PVOLED operated at 9 V and at a brightness of 2 110 cd/m

when the conversion efficiency of OPV is 2.3%. We have found that the power recycling efficiency is decreased under high brightness and high applied voltage due to an increase input power of WOLED. High efficiency (18.3 cd/A) and high contrast ratio (9.3) were obtained at the device operated at 2 500 cd/m

under an ambient illumination of 24 000 lx. Reasonable white light emission with Commission Internationale De L'Eclairage (CIE) color coordinates of (0.32

0.44) at 20 mA/cm

and slight color shift occurred in spite of a high current density of 50 mA/cm

. The proposed PVOLED is highly promising for use in outdoors display applications.

Abstract

/NPB/CBP∶FIrpic∶DCJTB/BPhen/LiF/Al/P3HT∶PCBM/V

/Al structure. The power recycling efficiency of 10.133% is achieved under the WOLED of PVOLED operated at 9 V and at a brightness of 2 110 cd/m

under an ambient illumination of 24 000 lx. Reasonable white light emission with Commission Internationale De L'Eclairage (CIE) color coordinates of (0.32

0.44) at 20 mA/cm

and slight color shift occurred in spite of a high current density of 50 mA/cm

. The proposed PVOLED is highly promising for use in outdoors display applications.

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Keywords

references

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