2,5-Dithienylpyrrole (DTP) as a donor component in DTP-π-A organic sensitizers: Photophysical and photovoltaic properties

Walid Sharmoukh; Antonio Attanzio; Eva Busatto; Thibaud Etienne; Stefano Carli; Antonio Monari; Xavier Assfeld; Marc Beley; Stefano Caramori; Philippe C. Gros

doi:10.1039/c4ra10342d

2,5-Dithienylpyrrole (DTP) as a donor component in DTP-π-A organic sensitizers: Photophysical and photovoltaic properties

Walid Sharmoukh, Antonio Attanzio, Eva Busatto, Thibaud Etienne, Stefano Carli, Antonio Monari, Xavier Assfeld, Marc Beley, Stefano Caramori, Philippe C. Gros

Faculty of Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

Organic dyes have been prepared to evaluate the ability of 2,5-dithienylpyrrole (DTP) to act as a donor substituent in D-π-A sensitizers for DSSCs. Using a styryl π-bridge the dyes were found to be excellent sunlight harvesters when adsorbed on TiO₂ photoanodes with absorbances >3 in the 300-550 nm region. Calculations as well as transient absorption spectroscopy in both solution and on a TiO₂ surface revealed that they were favourable for efficient injection and regeneration.

Original language	English
Pages (from-to)	4041-4050
Number of pages	10
Journal	RSC Advances
Volume	5
Issue number	6
DOIs	https://doi.org/10.1039/c4ra10342d
Publication status	Published - 1 Jan 2015

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abstract = "Organic dyes have been prepared to evaluate the ability of 2,5-dithienylpyrrole (DTP) to act as a donor substituent in D-π-A sensitizers for DSSCs. Using a styryl π-bridge the dyes were found to be excellent sunlight harvesters when adsorbed on TiO2 photoanodes with absorbances >3 in the 300-550 nm region. Calculations as well as transient absorption spectroscopy in both solution and on a TiO2 surface revealed that they were favourable for efficient injection and regeneration.",

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AU - Sharmoukh, Walid

AU - Attanzio, Antonio

AU - Busatto, Eva

AU - Etienne, Thibaud

AU - Carli, Stefano

AU - Monari, Antonio

AU - Assfeld, Xavier

AU - Beley, Marc

AU - Caramori, Stefano

AU - Gros, Philippe C.

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N2 - Organic dyes have been prepared to evaluate the ability of 2,5-dithienylpyrrole (DTP) to act as a donor substituent in D-π-A sensitizers for DSSCs. Using a styryl π-bridge the dyes were found to be excellent sunlight harvesters when adsorbed on TiO2 photoanodes with absorbances >3 in the 300-550 nm region. Calculations as well as transient absorption spectroscopy in both solution and on a TiO2 surface revealed that they were favourable for efficient injection and regeneration.

AB - Organic dyes have been prepared to evaluate the ability of 2,5-dithienylpyrrole (DTP) to act as a donor substituent in D-π-A sensitizers for DSSCs. Using a styryl π-bridge the dyes were found to be excellent sunlight harvesters when adsorbed on TiO2 photoanodes with absorbances >3 in the 300-550 nm region. Calculations as well as transient absorption spectroscopy in both solution and on a TiO2 surface revealed that they were favourable for efficient injection and regeneration.

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2,5-Dithienylpyrrole (DTP) as a donor component in DTP-π-A organic sensitizers: Photophysical and photovoltaic properties

Abstract

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