DSSCs based on aniline derivatives functionalized with a tert-butyldimethylsilyl group and the effect of the p-spacer

Duerto, I. ; Colom, E. ; Andrés-Castán, J.M. ; Franco, S. (Universidad de Zaragoza) ; Garín, J. (Universidad de Zaragoza) ; Orduna, J. (Universidad de Zaragoza) ; Villacampa, B. (Universidad de Zaragoza) ; Blesa, M.J. (Universidad de Zaragoza)

Resumen: We have developed four new dyes for DSSCs with a tert-butyldimethylsilylether in order to test their physical and photovoltaic properties. These dyes consist of a novel donor based on a functionalized N, N-dialkylaniline, a heteroaromatic p-conjugated spacer, such as thiophene or benzothiadiazole ring, and cyanoacetic acid as acceptor group. DFT theoretical studies predict, on the one hand, higher molar extinction coefficient for dyes with thiophene spacers than for those with benzothiadiazole groups while, on the other hand, the use of benzothiadiazole ring would give rise to the reduction of the back electron transfer (BET). The experimental studies have confirmed the predicted higher absorption of thiophene dyes and the better photovoltaic performance of the DSSCs prepared with these dyes. Finally, the stability of the response would support further studies of dyes with anilines functionalized with a tertbutyldimethylsilyl group to perform long-term devices.

Idioma: Inglés

DOI: 10.1016/j.dyepig.2017.07.063

Año: 2018

Publicado en: Dyes and Pigments 148 (2018), 61-71
ISSN: 0143-7208

Factor impacto JCR: 4.018 (2018)

Categ. JCR: CHEMISTRY, APPLIED rank: 13 / 71 = 0.183 (2018) - Q1 - T1
Categ. JCR: MATERIALS SCIENCE, TEXTILES rank: 1 / 24 = 0.042 (2018) - Q1 - T1
Categ. JCR: ENGINEERING, CHEMICAL rank: 24 / 138 = 0.174 (2018) - Q1 - T1

Factor impacto SCIMAGO: 0.834 - Process Chemistry and Technology (Q1) - Chemical Engineering (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA/E07
Financiación: info:eu-repo/grantAgreement/ES/DGA/E39
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CTQ2014-52331-R

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Química Orgánica (Dpto. Química Orgánica)
Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)