Highly efficient porphyrin-sensitized solar cells with enhanced light harvesting ability beyond 800 nm and efficiency exceeding 10%

Chin Li Wang, Jyun Yu Hu, Cheng Hua Wu, Hshin Hui Kuo, Yu Cheng Chang, Zih Jian Lan, Hui Ping Wu, Wei-Guang Diau*, Ching Yao Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

124 Scopus citations

Abstract

A new porphyrin sensitizer, LD31, was designed based on a donor-π-acceptor structure, in which an ethynyl-anthracenyl moiety was inserted between the dioctylaminophenyl group and the porphyrin core in order to extend the π-conjugation of the dye for improved light-harvesting ability. The device made of LD31 exhibited panchromatic spectral features covering the whole visible region and further extending over 800 nm. When combined with an organic dye (AN-4), the performance of the LD31/AN-4 co-sensitized device attained JSC/mA cm-2 = 20.3, VOC/mV = 704, FF = 0.72, and the overall efficiency of power conversion η = 10.3%. This journal is

Original languageEnglish
Pages (from-to)1392-1396
Number of pages5
JournalEnergy and Environmental Science
Volume7
Issue number4
DOIs
StatePublished - 1 Jan 2014

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