Improving Performance of Polymer Solar Cells by Regulating PbSe Quantum Dots

ZHANG Liang; SUN Qiang; ZHU Yang-yang; WANG LU; XIE Qiang; WANG Li-juan

doi:10.3788/fgxb20194010.1267

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Improving Performance of Polymer Solar Cells by Regulating PbSe Quantum Dots

Device Fabrication and Physics | 更新时间：2020-08-12

- Improving Performance of Polymer Solar Cells by Regulating PbSe Quantum Dots
- Chinese Journal of Luminescence Vol. 40, Issue 10, Pages: 1267-1273(2019)
- 作者机构：
  
  长春工业大学化学工程学院,吉林长春,130012
- 作者简介：
- 基金信息：
  
  Supported by Scientific Research Foundation of Education Department of Jilin Province(JJKH20191316KJ);National Natural Science Foundation of China(21403016);Key Program for Scicence and Technology Development of Jilin Province(20170204014SF)
- DOI：10.3788/fgxb20194010.1267
  CLC： O649
- Received：23 May 2019，
  
  Revised：05 July 2019，
  
  Published Online：13 June 2019，
  
  Published：05 October 2019
- 稿件说明：
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张梁, 孙强, 朱阳阳等. PbSe量子点调控的聚合物太阳能电池性能[J]. 发光学报, 2019,40(10): 1267-1273

ZHANG Liang, SUN Qiang, ZHU Yang-yang etc. Improving Performance of Polymer Solar Cells by Regulating PbSe Quantum Dots[J]. Chinese Journal of Luminescence, 2019,40(10): 1267-1273
张梁, 孙强, 朱阳阳等. PbSe量子点调控的聚合物太阳能电池性能[J]. 发光学报, 2019,40(10): 1267-1273 DOI： 10.3788/fgxb20194010.1267.

ZHANG Liang, SUN Qiang, ZHU Yang-yang etc. Improving Performance of Polymer Solar Cells by Regulating PbSe Quantum Dots[J]. Chinese Journal of Luminescence, 2019,40(10): 1267-1273 DOI： 10.3788/fgxb20194010.1267.

摘要

为提升聚合物太阳能电池的光电转换效率，在有源层中掺杂PbSe量子点，研究对电池性能的影响。首先采用热化学法制备PbSe量子点，通过改变油酸的添加量及反应时间，调控PbSe量子点的尺寸及结晶性。通过透射电子显微镜和X射线衍射，对量子点进行表征，确定最佳反应条件。然后将不同质量分数的PbSe量子点掺杂至结构为ITO/ZnO/PTB7:PC

BM/MoO

/Ag的聚合物太阳能电池中，通过

J-V

性能测试和紫外吸收光谱测试，分析了PbSe量子点对电池的影响机理。实验结果表明，当PbO与OA的量比为1:2、反应时间为3 min时，可得到尺寸均匀分布在3~7 nm之间、结晶性较好的量子点，掺杂量子点质量分数为3%时，短路电流密度提升了8.37%，光电转换效率提升了37.41%，有效提升了聚合物太阳能电池的性能。

Abstract

In order to improve the photoelectric conversion efficiency of polymer solar cells

PbSe quantum dots were doped in the active layer and the effect of the material on the cells was studied. Firstly

PbSe quantum dots were prepared by thermochemical method. The size and crystallinity of PbSe quantum dots were controlled by changing the amount of oleic acid and reaction time. Quantum dots were characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD)

and the optimum reaction conditions were determined. Then PbSe quantum dots with different mass fractions were doped into polymer solar cells with structure of ITO/ZnO/PTB7:PC

BM/MoO

/Ag. Through

J-V

performance test and ultraviolet absorption spectrum test

the influence mechanism of PbSe quantum dots on solar cells was analyzed. The experimental results show that when the molar ratio of PbO to OA is 1:2 and the reaction time is 3 min

the quantum dots with uniform size distribution between 3 and 7 nm and good crystallinity can be obtained. The short circuit current density and photoelectric conversion efficiency can be increased by 8.37% and 37.41% by doping 3% into polymer solar cells and the performance of polymer solar cells has been improved effectively.

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