Comparative study of phenyl-ester polymer-based organic solar cells with different solvents and additives

Hyunjung Jin, Um Kanta Aryal, Yeong Soon Gal, Sung Ho Jin*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Organic solar cells (OSCs) have been attracting strong research interest as a promising clean renewable energy source due to their beneficial characteristics such as lightweight, mechanical flexibility, low cost, and solution processability. Herein, phenyl ester-based donor polymer (Ph-Ester-BTF) and [6]-phenyl C71-butyric acid methyl ester (PC71BM) acceptor was used as photoactive materials for the OSCs. With using Ph-Ester-BTF polymer as donor for OSCs, power conversion efficiency (PCE) was obtained as 2.68% for pristine chlorobenzene (CB) processed OSCs. Different solvents and additives were used for comparative study, wherein pristine CB yielded the better photovoltaic device performance of OSCs. Charge carrier mobility and film surface morphology was studied for further interpretation of the device performance.

Original languageEnglish
JournalMolecular Crystals and Liquid Crystals
Volume705
Issue number1
Pages (from-to)71-78
ISSN1542-1406
DOIs
Publication statusPublished - 2. Jul 2020
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported by a grant fund from the National Research Foundation (NRF) (NRF-2018R1A5A1025594) by the Ministry of Science, ICT of Korea.

Keywords

  • charge transportation
  • organic solar cells
  • photovoltaic performance
  • processing solvents
  • surface morphology

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