Organic Light-emitting Diode with Tunable Exciplex Emission Colour Using Gadolinium Complex as a Functional Layer

LI Ming-tao; LI Wen-lian; WEI Han-zhi; XU Maoliang; CHU Bei

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Organic Light-emitting Diode with Tunable Exciplex Emission Colour Using Gadolinium Complex as a Functional Layer

更新时间：2020-08-11

- Organic Light-emitting Diode with Tunable Exciplex Emission Colour Using Gadolinium Complex as a Functional Layer
- Chinese Journal of Luminescence Vol. 26, Issue 5, Pages: 687-689(2005)
- 作者机构：
  
  1. 中国科学院, 研究生院北京,100049
  2. 中国科学院长春光学精密机械与物理研究所, 激发态物理重点实验室,吉林长春,130033
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN383.1
- Received：08 August 2005，
  
  Revised：12 August 2005，
  
  Published：20 September 2005
- 稿件说明：
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李明涛, 李文连, 魏晗志, 徐茂梁, 初蓓. 利用钆配合物调节激基复合物发光颜色的一种有机发光二极管[J]. 发光学报, 2005,26(5): 687-689

LI Ming-tao, LI Wen-lian, WEI Han-zhi, XU Maoliang, CHU Bei. Organic Light-emitting Diode with Tunable Exciplex Emission Colour Using Gadolinium Complex as a Functional Layer[J]. Chinese Journal of Luminescence, 2005,26(5): 687-689
李明涛, 李文连, 魏晗志, 徐茂梁, 初蓓. 利用钆配合物调节激基复合物发光颜色的一种有机发光二极管[J]. 发光学报, 2005,26(5): 687-689 DOI：

LI Ming-tao, LI Wen-lian, WEI Han-zhi, XU Maoliang, CHU Bei. Organic Light-emitting Diode with Tunable Exciplex Emission Colour Using Gadolinium Complex as a Functional Layer[J]. Chinese Journal of Luminescence, 2005,26(5): 687-689 DOI：

摘要

报道一种可用钆配合物[Gd(DBM)

bath]调节电致发光(EL)颜色的有机发光二极管(OLED)。该有机发光二极管是在空穴传输层(

-MTDATA)和电子传输层(TPBI)之间插入一薄层Gd(DBM)

bath。随着Gd(DBM)

bath厚度增加

二极管的发光颜色呈现出绿色(主峰525nm)-黄色-橙色(主峰593nm)变化。该二极管的电致发光主要来自界面激基复合物的发射而不是来自各有机功能层;而发光颜色的变化是由于两种激基复合物发射的相对强度的改变。

Abstract

A Gd-complex

tris-(dibenzoylmethanato)-mono-(bathophenanthroline) gadolinium [Gd(DBM)

bath] was used to tune emission colour in OLEDs.The Gd(DBM)

bath layer was inserted between the hole-transporting layer(

-MTDATA) and electron-transporting layer(TPBI).The ELcolor can be tuned from green at 525 nm to orange at 593 nm by increasing the thickness of Gd-complex layer.When the Gd-complex layer was thin enough

this layer became discontinuous.The discontinuity was increased when the thickness of this layer was further decreased.As a result

the exciplex from

-MTDATA/TPBIwas also formed besides the exciplex from

-MTDATA/Gd-complex.The shifts of spectra were due to the change of proportion for the two exciplexes.These results show that different emission color can be achieved by changing exciplex formation and its intensity in the same device configuration.Asimple technique for tuning the color of OLEDs by controlling the thickness of Gd-complex layer can be demonstrated.Besides

other complexes of trivalent rare earth with(β-diketone) may also play alike roles in such OLEDs.

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