Water Soluble Amino Grafted Silicon Nanoparticles and Their Use in Polymer Solar Cells

Quan-xiang Yan; Zhuo-wei Gu; Qi Li; Wei-fei Fu; Xiao-qiang Chen; Wen-qing Liu; Hong-bin Pan; Mang Wang; Hong-zheng Chen

doi:10.1007/s10118-014-1415-z

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Water Soluble Amino Grafted Silicon Nanoparticles and Their Use in Polymer Solar Cells

Updated：2021-06-21

- Water Soluble Amino Grafted Silicon Nanoparticles and Their Use in Polymer Solar Cells
- Chinese Journal of Polymer Science Vol. 32, Issue 4, Pages: 395-401(2014)
- Affiliations：
  
  State Key Lab of Silicon Materials, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
- Author bio：
  
  **Hong-zheng Chen (陈红征), E-mail: hzchen@zju.edu.cn
- Funds：
- DOI：10.1007/s10118-014-1415-z
  CLC：
- Received：02 May 2013，
  
  Revised：2013-06-14，
  
  Accepted：01 July 2013，
  
  Published：2014-04
- Accepted：
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Quan-xiang Yan, Zhuo-wei Gu, Qi Li, et al. Water Soluble Amino Grafted Silicon Nanoparticles and Their Use in Polymer Solar Cells[J]. Chinese Journal of Polymer Science, 2014, 32(4): 395-401.
DOI：

Quan-xiang Yan, Zhuo-wei Gu, Qi Li, et al. Water Soluble Amino Grafted Silicon Nanoparticles and Their Use in Polymer Solar Cells[J]. Chinese Journal of Polymer Science, 2014, 32(4): 395-401. DOI： 10.1007/s10118-014-1415-z.

摘要

Abstract

Stable aqueous amino-grafted silicon nanoparticles (SiNPs-NH

) were prepared

via

one-pot solution method. By grafting amino groups on the particle surface

the dispersion of SiNPs in water became very stable and clear aqueous solutions could be obtained. By incorporating SiNPs-NH

into the hole transport layer of poly(3

4- ethylenedioxythiophene)/polystyrene sulfonic acid (PEDOT:PSS)

the performance of polymer solar cells composed of poly[2-methoxy

5-(2′-ethylhexyloxy)-1

4-phenylene vinylene] (MEH-PPV):[6

-phenyl-C61-butyric acid methyl ester (PCBM) as active layer can be improved. SiNPs-NH

are dispersed uniformly in the PEDOT:PSS solution and help form morphologies with small-sized domains in the PEDOT:PSS film. SiNPs-NH

serve as screens between conducting polymer PEDOT and ionomer PSS to improve the phase separation and charge transport of the hole transport layer. As a result

the sheet resistance of PEDOT:PSS thin films is decreased from (93± 5) × 10

to (13 ± 3) × 10

Ω/□. The power conversion efficiency (PCE) of polymer solar cells was thus improved by 9.8% for devices fabricated with PEDOT:PSS containing 1 wt% of SiNPs-NH

compared with the devices fabricated by original PEDOT:PSS.

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