Synthesis and Luminescent Properties of Polyfluorene Containing Thiadiazole as White Light-emitting Polymer

PANG Hui; CAO Jian-hua; SUI Yan; LI Ya-min; HUA Rui-mao

doi:10.3788/fgxb20133412.1567

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Synthesis and Luminescent Properties of Polyfluorene Containing Thiadiazole as White Light-emitting Polymer

更新时间：2020-08-12

- Synthesis and Luminescent Properties of Polyfluorene Containing Thiadiazole as White Light-emitting Polymer
- Chinese Journal of Luminescence Vol. 34, Issue 12, Pages: 1567-1571(2013)
- 作者机构：
  
  1. 石家庄诚志永华显示材料有限公司北京研发中心北京,100084
  2. 河北省平板显示材料工程技术研究中心,河北石家庄,050091
  3. 清华大学化学系北京,100084
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20133412.1567
  CLC： TN383+.1
- Received：10 July 2013，
  
  Revised：03 September 2013，
  
  Published：10 December 2013
- 稿件说明：
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逄辉, 曹建华, 隋岩, 李雅敏, 华瑞茂. 含噻二唑聚芴类白光聚合物的合成与发光性能研究[J]. 发光学报, 2013,34(12): 1567-1571

PANG Hui, CAO Jian-hua, SUI Yan, LI Ya-min, HUA Rui-mao. Synthesis and Luminescent Properties of Polyfluorene Containing Thiadiazole as White Light-emitting Polymer[J]. Chinese Journal of Luminescence, 2013,34(12): 1567-1571
逄辉, 曹建华, 隋岩, 李雅敏, 华瑞茂. 含噻二唑聚芴类白光聚合物的合成与发光性能研究[J]. 发光学报, 2013,34(12): 1567-1571 DOI： 10.3788/fgxb20133412.1567.

PANG Hui, CAO Jian-hua, SUI Yan, LI Ya-min, HUA Rui-mao. Synthesis and Luminescent Properties of Polyfluorene Containing Thiadiazole as White Light-emitting Polymer[J]. Chinese Journal of Luminescence, 2013,34(12): 1567-1571 DOI： 10.3788/fgxb20133412.1567.

摘要

通过Suzuki偶联反应将2，7-二溴-9，9-二辛基芴（Br-DOF）、2，7-二硼酸-9，9-二辛基芴（B-DOF）和4-（8-（2，7-二溴-9-辛基芴）辛氧基）-N-4-（7-（4-（二苯胺基）苯基）苯并噻二唑）苯基-二苯胺（Br-TAF）共聚，合成了白光聚合物PDOF-TAF。以PDOF-TAF为发光层，溶液旋涂制备了非掺杂型单层白光有机电致发光二极管，色坐标为（0.23，0.18）。通过插入电子传输层TPBI和空穴传输层PVK得到的白光器件发射光谱覆盖了410~700 nm区域，色坐标从（0.23，0.18）调整到（0.24，0.32），亮度达到2 020 cd/m

，电流效率达到1.4 cd/A。实验结果表明，PDOF-TAF是一种很好的白光聚合物发光材料，在WOLED中将有很好的应用前景。

Abstract

Polyfluorene containing thiadiazole (PDOF-TAF) was synthesized by palladium-catalyzed Suzuki cross coupling reaction of 2

7-dibromo-9

9-dioctyl-9H-fluorene (Br-DOF)

9-dioctyl-9H-fluorene-2

7-diyldiboronic acid (B-DOF) and 4-(8-(2

7-dibromo-9-octyl-9H-fluoren-9-yl)octyloxy)-N-(4-(7-(4-(diphenylamino) phenyl)benzo[c][1

thiadiazol-4-yl)phenyl)-N-phenylaniline (Br-TAF). The synthesized polymer was applied as white light-emitting polymer and was used as the emitting layer to prepare the non-doped white organic light-emitting diodes (WOLED) by spin-coating. The color coordinates locate at (0.23

0.18). By inserting 1

5-tris(1-phenyl-1H-benzimidazol-2-yl)benzene (TPBI) as electron transport layer and Poly(N-vinylcarbazole) (PVK) as hole transport layer

the emission spectra of the diode cover 410~700 nm visible region

and the color coordinates shift to (0.24

0.32)

locating close to the white point. In addition

the luminescence and current efficiency can reach up to 2 020 cd/m

and 1.4 cd/A

respectively

indicating that the synthesized polymer has highly potential application as the material of white light-emitting layer in WOLED.

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references

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