Ideal White Organic Electroluminescent Device Realized by Inserting An Ultra Thin Layer

ZHANG Yun-hu; WU You-zhi; MA Ji-jing; NI Wei-de; ZHANG Cai-rong; ZHANG Ding-jun

doi:10.3788/fgxb20133406.0748

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Ideal White Organic Electroluminescent Device Realized by Inserting An Ultra Thin Layer

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- Ideal White Organic Electroluminescent Device Realized by Inserting An Ultra Thin Layer
- Chinese Journal of Luminescence Vol. 34, Issue 6, Pages: 748-752(2013)
- 作者机构：
  
  1. 甘肃省有色金属新材料省部共建国家重点实验室兰州理工大学材料科学与工程学院,甘肃兰州,730050
  2. 兰州理工大学理学院应用物理系,甘肃兰州,730050
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20133406.0748
  CLC： TN383+.1
- Received：28 February 2013，
  
  Revised：02 May 2013，
  
  Published：10 June 2013
- 稿件说明：
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张运虎, 吴有智, 马继晶, 倪蔚德, 张材荣, 张定军. 超薄插入法实现的理想白色有机电致发光器件[J]. 发光学报, 2013,34(6): 748-752

ZHANG Yun-hu, WU You-zhi, MA Ji-jing, NI Wei-de, ZHANG Cai-rong, ZHANG Ding-jun. Ideal White Organic Electroluminescent Device Realized by Inserting An Ultra Thin Layer[J]. Chinese Journal of Luminescence, 2013,34(6): 748-752
张运虎, 吴有智, 马继晶, 倪蔚德, 张材荣, 张定军. 超薄插入法实现的理想白色有机电致发光器件[J]. 发光学报, 2013,34(6): 748-752 DOI： 10.3788/fgxb20133406.0748.

ZHANG Yun-hu, WU You-zhi, MA Ji-jing, NI Wei-de, ZHANG Cai-rong, ZHANG Ding-jun. Ideal White Organic Electroluminescent Device Realized by Inserting An Ultra Thin Layer[J]. Chinese Journal of Luminescence, 2013,34(6): 748-752 DOI： 10.3788/fgxb20133406.0748.

摘要

以典型发光材料联苯乙烯衍生物(4

4'-bis(2

2'-diphenylvinyl)-1

1'-biphenyl

DPVBi)和红荧烯(5

12-tetraphenylnaphthacene

Rubrene)分别为蓝色、橙色发射体

通过在DPVBi中插入一层超薄Rubrene制备了结构简单的非掺杂型白色有机电致发光器件

得到了低压启动、效率和色度俱佳的白色发光器件。器件启亮电压为3.1 V

最高电流效率为6.7 cd/A(流明效率5.5 lm/W或外量子效率2.8%)

器件色坐标达到理想的白平衡点(0.33

0.33)。理想白光的获得归因于通过调整NPB/DPVBi界面到Rubrene的距离

实现了从DPVBi到Rubrene能量传递的最佳比例。

Abstract

By using typical luminescent materials

4'-bis(2

2'-diphenylvinyl)-1

1'-biphenyl (DPVBi) and 5

12-tetraphenylnaphthacene (Rubrene) as a blue and orange emitter

respectively

a highly efficient bright nondoped white electroluminescent device with low driving voltage and ideal chromaticity is fabricated. The turn-on voltage

maximum current efficiency are 3.1 V

6.7 cd/A (luminous efficacy of 5.5 lm/W

external quantum efficiency of 2.8%)

respectively. Commission Internationale de l'Eclairage (CIE) co-ordinates are at ideal equal-energy white point (0.33

0.33). The achievement of excellent white emission is attributed to realizing perfect ratio of energy transfer from DPVBi to Rubrene by tuning distance from NPB/DPVBi interface to Rubrene.

关键词

Keywords

references

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