Issue 27, 2018
From the journal:

Nanoscale

Water-resistant PEDOT:PSS hole transport layers by incorporating a photo-crosslinking agent for high-performance perovskite and polymer solar cells†

Su Ryong Ha,a   Sumin Park,b   Jae Taek Oh,a   Do Hui Kim,c   Shinuk Cho, ORCID logo c   Sung Yong Bae,a   Dong-Won Kang, ORCID logo *d   Jong-Man Kim*b  and  Hyosung Choi ORCID logo *a  

* Corresponding authors

a Department of Chemistry and Research Institute for Convergence of Basic Sciences, Hanyang University, Seoul 04763, Republic of Korea
E-mail: hschoi202@hanyang.ac.kr

b Institute of Nano Science and Technology, Hanyang University, Seoul 04763, Republic of Korea
E-mail: jmk@hanyang.ac.kr

c Department of Physics and Energy Harvest Storage Research Center (EHSRC), The University of Ulsan, Ulsan 44610, Republic of Korea

d School of Energy Systems Engineering, Chung-Ang University, Seoul 06974, Republic of Korea
E-mail: kangdwn@cau.ac.kr

Abstract

We demonstrated a water-resistant PEDOT:PSS HTL by incorporating a photo-crosslinking agent into a PEDOT:PSS film. A crosslinking system was successfully formed inside the PEDOT:PSS film by simple and fast photo-polymerization of PCDSA monomers. Combination of the crosslinking system and MeOH surface treatment simultaneously improved the device efficiency and stability of both perovskite and polymer solar cells. The crosslinking system inside PEDOT:PSS changed its intrinsic water-soluble characteristic into a water-resistant property, thus preventing water penetration into the PEDOT:PSS film. In addition, MeOH treatment improved the surface conductivity and reduced the surface roughness of the PEDOT:PSS film by removing surface residues of PDAs and insulating PSS parts.

Graphical abstract: Water-resistant PEDOT:PSS hole transport layers by incorporating a photo-crosslinking agent for high-performance perovskite and polymer solar cells

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Article information

DOI
https://doi.org/10.1039/C8NR02903B
Article type
Paper
Submitted
10 Apr 2018
Accepted
16 Jun 2018
First published
18 Jun 2018

Nanoscale, 2018,10, 13187-13193

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Water-resistant PEDOT:PSS hole transport layers by incorporating a photo-crosslinking agent for high-performance perovskite and polymer solar cells

S. R. Ha, S. Park, J. T. Oh, D. H. Kim, S. Cho, S. Y. Bae, D. Kang, J. Kim and H. Choi, Nanoscale, 2018, 10, 13187 DOI: 10.1039/C8NR02903B

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