新型含吡啶单元给受体共轭聚合物/TiO<sub>2</sub>复合材料的制备及其在紫外光电探测器中的应用

刘海乐; 吐尔逊·阿不都热依木; 刘雄; 如仙古丽·加玛力; 邹东娜; 拿吾尔斯汗·赛尔克江; 唐新生

doi:10.13568/j.cnki.651094.651316.2022.06.14.0003

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新型含吡啶单元给受体共轭聚合物/TiO₂复合材料的制备及其在紫外光电探测器中的应用

化学与化工 | 更新时间：2026-01-23

- 新型含吡啶单元给受体共轭聚合物/TiO₂复合材料的制备及其在紫外光电探测器中的应用
- 新型含吡啶单元给受体共轭聚合物/TiO₂复合材料的制备及其在紫外光电探测器中的应用
- 新疆大学学报（自然科学版中英文） 2023年40卷第3期页码：320-330
- 作者机构：
  
  1. 新疆大学化学学院
  2. 新疆大学化工学院
- 作者简介：
- 基金信息：
  
  国家自然科学基金“PEDOS类导电聚合物/氧化锌纳米复合材料的制备及在紫外探测器中的应用研究”（21865034）,“功能化PProDOT、PProDOS类导电聚合物/壳聚糖分子印迹纳米复合材料的制备及其在电化学检测抗生素中的应用”（52163020）
- DOI：10.13568/j.cnki.651094.651316.2022.06.14.0003
  中图分类号： TB332;TN23
- 纸质出版：2023
- 稿件说明：
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[1]刘海乐,吐尔逊·阿不都热依木,刘雄,等.新型含吡啶单元给受体共轭聚合物/TiO_2复合材料的制备及其在紫外光电探测器中的应用[J].新疆大学学报(自然科学版)(中英文),2023,40(03):320-330+366.
[1]刘海乐,吐尔逊·阿不都热依木,刘雄,等.新型含吡啶单元给受体共轭聚合物/TiO_2复合材料的制备及其在紫外光电探测器中的应用[J].新疆大学学报(自然科学版)(中英文),2023,40(03):320-330+366. DOI： 10.13568/j.cnki.651094.651316.2022.06.14.0003.

DOI：10.13568/j.cnki.651094.651316.2022.06.14.0003.

摘要

以3

4-丙撑二氧噻吩封端，吡啶为中间单元的三联体为单体(3

4-丙撑二氧噻吩为给体单元、吡啶为受体单元)，制备新型含吡啶单元给受体共轭聚合物/TiO2复合材料，并将复合材料应用在紫外光探测上．采用UV-vis、XRD、FT-IR、XPS、SEM等测试方法对材料进行结构表征，通过测试Tafel、I-T等曲线研究器件的紫外光探测器性能．当外界偏压为1～6 V时，研究了给受体型共轭聚合物(PProDOT-Py)结构中吡啶基团与TiO2纳米阵列(NRs)之间的协同作用．结果表明：当偏压为5 V时，PProDOT-Py和TiO2 NRs复合材料具有快速的时间响应(Trise=8 s、Tfall=18 s)、高响应(696.8 mA/W)、高探测能力(1.23×1011cm·Hz1/2·W-1)和高外量子效率(237.1%).

Abstract

A novel conjugated polymer/TiO2 composite containing pyridine unit as donor acceptor was prepared by using 3

4-propylenedioxythiophene as terminal block and pyridine as intermediate unit as monomer(3

4-propylenedioxythiophene as donor unit and pyridine as acceptor unit).The composite was applied to UV detection.UV Vis

XRD

FT-IR

XPS

SEM and other test methods were used to characterize the structure of the material.The UV detector performance of the device was studied by testing Tafel and I-T curves.The synergistic effect between pyridine group in donor acceptor conjugated polymer (PProDOT-Py) structure and TiO2 nano arrays (NRs) was studied in detail.Because the pyridine unit on PProDOT-Py can form a coordination bond with TiO2 NRs

there is a synergistic effect between PProDOT-Py and TiO2 NRs.This structure promotes the formation of donor acceptor structure

thus improving carrier conversion

reducing carrier recombination and effectively separating electron hole pairs.The results show that when the bias voltage is 5 V

PProDOT-Py and TiO2 NRs composites have fast time response (Trise=8 s

Tfall=18 s)

high response (696.8 mA/W) and large detection capability (1.23×1011cm·Hz1/2·W-1)

and high external quantum efficiency (237.1%).

关键词

Keywords

references

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新型含吡啶单元给受体共轭聚合物/TiO2复合材料的制备及其在紫外光电探测器中的应用

新型含吡啶单元给受体共轭聚合物/TiO2复合材料的制备及其在紫外光电探测器中的应用

DOI：10.13568/j.cnki.651094.651316.2022.06.14.0003

摘要

Abstract

关键词

Keywords

references

新型含吡啶单元给受体共轭聚合物/TiO₂复合材料的制备及其在紫外光电探测器中的应用

新型含吡啶单元给受体共轭聚合物/TiO₂复合材料的制备及其在紫外光电探测器中的应用