TiO2 Doped Alq3 as Emitting Layer to Improve The Anti-aging Performance of OLED

LI Wan-li; WU Cong-ling; MIAO Yan-qin; LI Yuan-hao; WANG Hua; GUO Kun-peng

doi:10.3788/fgxb20153602.0219

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TiO₂ Doped Alq₃ as Emitting Layer to Improve The Anti-aging Performance of OLED

更新时间：2020-08-12

- TiO₂ Doped Alq₃ as Emitting Layer to Improve The Anti-aging Performance of OLED
- Chinese Journal of Luminescence Vol. 36, Issue 2, Pages: 219-224(2015)
- 作者机构：
  
  1. 太原理工大学新材料工程技术研究中心,山西太原,030024
  2. 太原理工大学新材料界面科学与工程教育部重点实验室,山西太原,030024
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20153602.0219
  CLC： TN873.3;TN383+.1
- Received：28 September 2014，
  
  Revised：08 December 2014，
  
  Published：03 February 2015
- 稿件说明：
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李菀丽, 武聪伶, 苗艳勤等. 二氧化钛改性8-羟基喹啉铝对有机电致发光器件抗老化性能的提高[J]. 发光学报, 2015,36(2): 219-224

LI Wan-li, WU Cong-ling, MIAO Yan-qin etc. TiO2 Doped Alq3 as Emitting Layer to Improve The Anti-aging Performance of OLED[J]. Chinese Journal of Luminescence, 2015,36(2): 219-224
李菀丽, 武聪伶, 苗艳勤等. 二氧化钛改性8-羟基喹啉铝对有机电致发光器件抗老化性能的提高[J]. 发光学报, 2015,36(2): 219-224 DOI： 10.3788/fgxb20153602.0219.

LI Wan-li, WU Cong-ling, MIAO Yan-qin etc. TiO2 Doped Alq3 as Emitting Layer to Improve The Anti-aging Performance of OLED[J]. Chinese Journal of Luminescence, 2015,36(2): 219-224 DOI： 10.3788/fgxb20153602.0219.

摘要

以二氧化钛改性8-羟基喹啉铝复合材料(TiO

-Alq

)为发光层制备了有机电致发光器件(OLED).在器件未封装条件下

复合材料TiO

-Alq

制备的器件较纯Alq

制备的器件抗老化性能有所提高.通过化学计量比调控

当钛酸四丁酯与硫酸铝的投料比为1:10时制备的复合材料TiO

-Alq

可获得抗老化性能最优的OLED器件.在空气中老化48 h后

该器件亮度仍保持在起始亮度的89.7%

电流效率保持在起始值的76.6%

而纯Alq

制备的OLED器件在同样测试条件下已失活.

Abstract

Composite material titanium dioxide doped tris(8-hydroxyquinoline)-aluminium (TiO

-Alq

) was applied in organic lighting emitting diodes (OLED) as emitting material. Without encapsulation

it is found that TiO

-Alq

as emitting layer in OLED exhibits significantly improved anti-aging performance than that of the pure Alq

-based OLED. It can be attributed to the introduced of TiO

which has good photochemical stability and the absorption ability in UV

etc.

The OLED with optimized anti-aging performance was obtained after tuning the molar ration of reactants tetrabutyl titanate and aluminium sulfate to 1:10. After aging 48 h in the air

the luminance and current efficiency of this optimized OLED still remained in the initial state of 89.7% and 79.6%

respectively. This work paves a new way to improve the anti-aging performance of OLED by modifying the emitting materials.

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Keywords

references

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