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8435047 
Journal Article 
Phenothiazine based organic dyes for dye sensitized solar cells: A theoretical study on the role of π-spacer 
Ouared, I; Rekis, M; Trari, M 
2021 
Yes 
Dyes and Pigments
ISSN: 0143-7208
EISSN: 1873-3743 
Elsevier Ltd 
190 
109330 
English 
In this contribution, six new organic dyes were investigated by the density functional theory (DFT). The electron-donor unit is a phenothiazine fragment substituted by an ethynyl-pyrene unit while the electron acceptor group is the cyanoacrylic acid for all sensitizers; the π-linker was changed and its effect investigated. The dye baring dioxythiophene linker has the highest absorption maxima. The theoretical photovoltaic properties indicated that the over-all yield of the solar cell could be remarkably improved with the designed dyes. The results showed that all the studied organic dyes are potential candidates as photosensitizers for dye sensitized solar cells (DSSCs). © 2021 Elsevier Ltd 
Dye sensitized solar cells; Metal free organic dyes; Phenothiazine donor; Photovoltaic parameters