Publication: Study on bridging moiety effect on asymmetric double D–Π–A dyes
Issued Date
2018-11-01
Resource Type
ISSN
15661199
Other identifier(s)
2-s2.0-85050806298
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Organic Electronics. Vol.62, (2018), 598-609
Suggested Citation
Utt Eiamprasert, Panida Surawatanawong, Supavadee Kiatisevi Study on bridging moiety effect on asymmetric double D–Π–A dyes. Organic Electronics. Vol.62, (2018), 598-609. doi:10.1016/j.orgel.2018.06.036 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/45465
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
Study on bridging moiety effect on asymmetric double D–Π–A dyes
Other Contributor(s)
Abstract
© 2018 Elsevier B.V. A series of four new asymmetric di-anchoring dyes is reported, containing identical π spacer, acceptor, phenothiazine (PTZ) and arylamine (ArnN) moieties in the donor part but different bridging moieties (L): N–C bond, C–C bond, phenylamine and triphenylamine. Spectral, electrochemical, and photovoltaic experiments and density functional theory calculations were performed to understand the bridging moiety influence on the performance of A–π–ArnN–L–PTZ–π–A dyes. Among these four dyes, the dye incorporating the triphenylamine bridging unit shows the best photovoltaic performance: an open-circuit voltage (Voc) of 0.72 V, a short-circuit photocurrent density (Jsc) of 11.57 mA cm−2, and a fill factor (FF) of 0.63, corresponding to an overall conversion efficiency of 5.21% under a simulated AM 1.5 G illumination condition. The results indicated that the presence of the biaryl torsion at the bridging position effectively improved the photovoltaic performance of the dye-sensitized solar cells.