Solvent mixtures for improving device efficiency of polymer photovoltaic devices

Fang-Chung Chen*, Hsin Chen Tseng, Chu Jung Ko

*Corresponding author for this work

Research output: Contribution to journalArticle

144 Scopus citations

Abstract

In this work, we used solvent mixtures, consisting of 1-chloronaphthalene (Cl-naph), one solvent with a high boiling point, and o -dichlorobenzene, to prepare the polymer films for polymer photovoltaic devices. Because of the lower vapor pressure of the solvent mixtures, the polymer films dried slower. With higher Cl-naph concentration in the organic solvent, the polymer chains had longer time to self-organize themselves. As a result, the higher degree of crystalline led to lower device series resistance, thereby increasing the performance of the photovoltaic devices.

Original languageEnglish
Article number103316
JournalApplied Physics Letters
Volume92
Issue number10
DOIs
StatePublished - 24 Mar 2008

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