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Novel indeno[2,1-b]carbazole donor-based organic dyes for dye-sensitized solar cells

Abstract

Four novel metal-free organic dyes (CFB1, CFB2, CFT1, CFT2) based on indeno[2,1-b] carbazole donors were synthesized and their absorption spectra, photovoltaic performances, and electrochemical properties were evaluated. The differences in link mode and number of thiophene units led to variations in absorptivity, electron injection efficiency, and charge recombination. Among the four dyes, CFT1 with π-bridge at indeno[2,1-b] carbazole ring and bridge of thiophene showed the best photovoltaic performance with a JSC of 12.34 mA/cm2, VOC of 0.71 V, and ff of 0.68, corresponding to an overall conversion efficiency η of 5.97 % under standard AM 1.5 G irradiation.

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Publication details

The article was received on 20 Sep 2017, accepted on 12 Feb 2018 and first published on 12 Feb 2018


Article type: Paper
DOI: 10.1039/C7PP00350A
Citation: Photochem. Photobiol. Sci., 2018, Accepted Manuscript
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    Novel indeno[2,1-b]carbazole donor-based organic dyes for dye-sensitized solar cells

    Y. Xie, J. Gao, S. Zhang and L. Wu, Photochem. Photobiol. Sci., 2018, Accepted Manuscript , DOI: 10.1039/C7PP00350A

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