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Molecular Crystals and Liquid Crystals Volume 728, 2021 - Issue 1: KJF International Conference on Organic Materials for Electronics and Photonics (KJF-ICOMEP 2021), Part 2
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Research Article

Conjugated polymer electrolyte with nitrosonium tetrafluoroborate as the interlayer for polymer solar cells

Jun Ho Leea Department of Polymer Engineering, Pukyong National University, Busan, Republic of KoreaView further author information
,
Sabrina Aufar Salmaa Department of Polymer Engineering, Pukyong National University, Busan, Republic of KoreaView further author information
,
Dong Wook Changb Industrial Chemistry, Pukyong National University, Busan, Republic of KoreaView further author information
&
Joo Hyun Kima Department of Polymer Engineering, Pukyong National University, Busan, Republic of KoreaCorrespondence[email protected]
ORCID Iconhttps://orcid.org/0000-0002-1507-1640View further author information
ORCID Icon
Pages 19-25 | Published online: 24 Aug 2021
 
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Abstract

High-performance devices can be achieved by lowering the work function of the cathode electrode. Herein, we synthesized polyelectrolyte that has functionality at the side chain, named PFB. In addition, a p-type dopant, NOBF4 (nitrosonium tetrafluoroborate), was used to enhance the performance of the polyelectrolyte. This polyelectrolyte was adapted as an interlayer to improve the performances of polymer solar cells (PSCs). The PSCs based on PFB and NOBF4-PFB demonstrate higher power conversion efficiency (PCE) of 9.41% and 9.51% than pristine PSC using PTB7-Th as a reference (8.7%).

Additional information

Funding

This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20194010201840) and was supported by the BB21+ Project in 2019.

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