Balanced carrier transport in organic solar cells employing embedded indium-tin-oxide nanoelectrodes

Min Hsiang Hsu*, Pei-Chen Yu, Jen Hsien Huang, Chia Hua Chang, Chien Wei Wu, Yu Chih Cheng, Chih Wei Chu

*Corresponding author for this work

Research output: Contribution to journalArticle

41 Scopus citations

Abstract

In this paper, we present evidence of balanced electron and hole transport in polymer-fullerene based solar cells by means of embedded indium-tin-oxide nanoelectrodes. Enabled by a controllable electrochemical deposition, the individual nanoelectrodes are uniformly enclosed by a poly(3,4- ethylenedioxythiophene) hole-conducting layer, allowing a relatively short route for holes to reach the anode and hence increasing the effective hole mobility. Consequently, the power conversion efficiency and photogenerated current are maximized with a deposition condition of 50 μC, where the ratio of the electron to hole mobility is nearly unity.

Original languageEnglish
Article number073308
JournalApplied Physics Letters
Volume98
Issue number7
DOIs
StatePublished - 14 Feb 2011

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