Charge Generation Ability of C60/CuPc Organic Heterojunction Connector Layer

LU Fei-ping; DENG Yan-hong; SHI Ying-long; ZHAO Yu-xiang; LIU Xiao-bin; ZHANG Ming-xia

doi:10.3788/fgxb20194005.0643

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Charge Generation Ability of C₆₀/CuPc Organic Heterojunction Connector Layer

Device Fabrication and Physics | 更新时间：2020-08-12

- Charge Generation Ability of C₆₀/CuPc Organic Heterojunction Connector Layer
- Chinese Journal of Luminescence Vol. 40, Issue 5, Pages: 643-649(2019)
- 作者机构：
  
  1. 天水师范学院物理系,甘肃天水,741000
  2. 衡阳师范学院物理与电子工程学院, 湖南衡阳 421002
- 作者简介：
- 基金信息：
  
  Supported by National Natural Science Foundation of China(61665010,11464040,11764035);Natural Science Foundation of Gansu Province(18JR3RE242,1506RJZE112,1606RJZE012);Research Project of Graduate Teacher of Gansu Province(2015B-103);Scientific Research Fund of Hunan Provincial Education Department(15B033);Hunan Provincial Natural Science Foundation(2018JJ3010);"QinLan"Talent Engineering Fund by Tianshui Normal University
- DOI：10.3788/fgxb20194005.0643
  CLC： TN383
- Received：27 June 2018，
  
  Revised：08 October 2018，
  
  Published Online：11 October 2018，
  
  Published：05 May 2019
- 稿件说明：
移动端阅览
路飞平, 邓艳红, 师应龙等. 有机异质结连接层C60/CuPc电荷产生能力研究[J]. 发光学报, 2019,40(5): 643-649

LU Fei-ping, DENG Yan-hong, SHI Ying-long etc. Charge Generation Ability of C60/CuPc Organic Heterojunction Connector Layer[J]. Chinese Journal of Luminescence, 2019,40(5): 643-649
路飞平, 邓艳红, 师应龙等. 有机异质结连接层C60/CuPc电荷产生能力研究[J]. 发光学报, 2019,40(5): 643-649 DOI： 10.3788/fgxb20194005.0643.

LU Fei-ping, DENG Yan-hong, SHI Ying-long etc. Charge Generation Ability of C60/CuPc Organic Heterojunction Connector Layer[J]. Chinese Journal of Luminescence, 2019,40(5): 643-649 DOI： 10.3788/fgxb20194005.0643.

摘要

有机异质结连接层因其具有良好的透光性能、制备工艺和有机电致发光器件（Organic light-emitting diodes，OLEDs）完全兼容的优点，被广泛应用于叠层OLEDs中。在叠层OLEDs中，连接层可产生电荷，其工作性能是影响叠层OLEDs性能的关键因素之一。为了获得最佳性能的有机异质结连接层，本文制备了结构为glass/ITO/tris（8-hydroxyquinoline） aluminum（Alq

）（60 nm）/C

（

nm）/CuPc（

nm）/N，N'-bis（naphthalen-1-yl）-N，N'-bis （phenyl）-be-nzidine（NPB）（40 nm）/Al （100 nm）的有机器件，直接获得了有机异质结连接层C

/CuPc产生的器件电流。通过结构优化发现，结构为C

（30 nm）/CuPc（10 nm）的连接层具有最强的电荷产生能力，并对最优结构连接层形成的物理机制作了合理的解释. 本文获得的结果可为理解有机异质结连接层工作机理以及制备高性能叠层OLEDs提供理论基础。

Abstract

Organic heterojunction connector(OHC) layers were widely used in tandem organic light emitting diodes(OLEDs) for their good light transmittance and technological compatibility with OLEDs. In a tandem OLED

the OHC layers

serving as the charge generation layer

played an important role in tandem OLEDs to function efficiently. In order to obtain the OHC layers with best performance

the devices with the structure of glass/ITO/tris(8-hydroxyquinoline) aluminum (Alq

)(60 nm)/C

(

nm)/CuPc(

nm)/N

N'-bis(naphthalen-1-yl)-N

N'-bis(phenyl)-be-nzidine (NPB)(40 nm)/Al(100 nm) were fabricated. The current density-voltage characteristic of the fabricated devices revealed that the OHC layer with the structure of C

/CuPc can generate charge carriers effectively

and show the largest charge carrier generation ability with the structure of C

(30 nm)/CuPc(10 nm). The forming physical mechanism of optimized OHC layer was reasonably explained. The results obtained in this paper can present an in-depth understanding of the working mechanism of tandem OLED and help ones fabricate high efficiency OLED.

关键词

Keywords

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