Computational characterization of the molecular structure and properties of Dye 7 for organic photovoltaics

Jesús Baldenebro-López1, José Castorena-González, Norma Flores-Holguin

  • 1Facultad de Ingeniería Mochis, Universidad Autónoma de Sinaloa. Prol. Ángel Flores y Fuente de Poseidón, S.N, C.P. 81223, Los Mochis, Sinaloa, México.

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UV–Vis Spectroscopy of Conjugated Systems01:32

UV–Vis Spectroscopy of Conjugated Systems

Organic compounds with conjugated double bonds show strong absorption features in the UV–visible region of the electromagnetic spectrum attributed to π → π* electronic excitations. Generally, a UV–vis absorption spectrum is recorded as a plot of absorbance vs wavelength. The wavelength of maximum absorbance, which manifests as a peak in the absorption spectrum, is denoted as λmax.
One of the factors influencing λmax is the extent of conjugation in the...