Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 17, Issue 21, Pages 14122-14129Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cp01387a
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Funding
- Consejo Nacional de Ciencia y Tecnologia (CONACYT)
- Centro de Investigacion en Materiales Avanzados, S.C. (CIMAV)
- Universidad Autonoma de Sinaloa (UAS)
- CONACYT
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A group of dyes derived from coumarin was studied, which consisted of nine molecules using a very similar manufacturing process of dye sensitized solar cells (DSSCs). Optimized geometries, energy levels of the highest occupied molecular orbital and the lowest unoccupied molecular orbital, and ultraviolet-visible spectra were obtained using theoretical calculations, and they were also compared with experimental conversion efficiencies of the DSSC. The representation of an excited state in terms of natural transition orbitals (NTOs) was studied. Chemical reactivity parameters were calculated and correlated with the experimental data linked to the efficiency of the DSSC. A new proposal was obtained to design new molecular systems and to predict their potential use as a dye in DSSCs.
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