A cockspur for the DSS cells: Erythrina crista-galli sensitizers.
Enciso, P., Decoppet, J. D., Gratzel, M., Worner, M., Cabrerizo, F. M. and Cerda, M. F.
Laboratorio de Biomateriales, Facultad de Ciencias, Universidad de la Republica, Igua 4225, 11400 Montevideo, Uruguay.
Ecole Polytechnique Federale de Lausanne, 1015 Lausanne, Switzerland.
Karlsruher Institut fur Technologie, Karlsruhe, Germany.
Instituto de Investigaciones Biotecnologicas - Instituto Tecnologico de Chascomus (IIB-INTECH), Universidad Nacional de San Martin (UNSAM) - Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Intendente Marino km 8.2, CC 164, B7130IWA Chascomus, Buenos Aires, Argentina.
Laboratorio de Biomateriales, Facultad de Ciencias, Universidad de la Republica, Igua 4225, 11400 Montevideo, Uruguay. Electronic address: fcerda@fcien.edu.uy.
Dye sensitized solar cells were assembled employing a mixture of anthocyanins extracted from red ceibo's flowers. At the literature different extraction procedures are reported to extract anthocyanins from natural products and sensitize the cells. In order to compare them, different methods were followed to set the cells under the same conditions. Assembled cells showed very interesting conversion efficiency values, reaching a 0.73% value for extracts purified using C18 column, in open cells under illumination using a solar light simulator, 1 sun, 1.5 AM. Data reported herein prove that anthocyanins obtained from ceibo's flower, after simple further purification, might represent an excellent, cheap and clean alternative for the development of DSS cells.
Spectrochimica Acta. Part A: Molecular and Biomolecular Spectroscopy 176: 91-98 (2017)