Solar energy conversion using dye-sensitised liquid|liquid interfaces |
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| Affiliation: | 1. Laboratory of Renewable Resources Engineering, Purdue University, West Lafayette, IN 47907-2032, United States;2. Bioenergy Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, USDA, 1815 N. University Street, Peoria, IL 61604, United States;3. School of Life Science and Technology, Harbin Institute of Technology, Harbin 150001, China;4. State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, China;1. Genome Biotechnology Laboratory, Kanazawa Institute of Technology, 3-1 Yatsukaho, Hakusan, Ishikawa 924-0838, Japan;2. Research Laboratory for Integrated Technological Systems, Kanazawa Institute of Technology, 3-1 Yatsukaho, Hakusan, Ishikawa 924-0838, Japan;1. Instituto de Quimica Física “Rocasolano”, CSIC, Madrid E-28006, Spain;2. Instituto de Estructura de la Materia, CSIC, Madrid E-28006, Spain;3. Instituto de Cerámica y Vidrio, CSIC, Madrid E-28049, Spain;1. Departamento de Física Aplicada and Instituto de Ciencia de Materiales Nicolás Cabrera, Universidad Autónoma de Madrid, Francisco Tomás y Valiente 7, E-28049 Madrid, Spain;2. Departamento de Física, Universidade Federal do Paraná, Caixa Postal 19044, 81531-990 Curitiba, PR, Brazil;3. Instituto de Ciencia de Materiales de Madrid, ICMM-CSIC, Sor Juana Inés de la Cruz 3, E-28049 Madrid, Spain;4. ALBA Synchrotron, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès, Barcelona, Spain;5. BM25-SpLine ESRF, 71 Avenue des Martyrs, 38043 Grenoble, France;1. Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands;2. CNR-ISMN, Instituto per Io Studio di Materiali Nanostrutturati, Via Gobetti 101, I-40129 Bologna, Italy;3. Dipartimento di Scienze, Università di Roma Tre, I-00146 Rome, Italy;4. Consiglio Nazionale delle Ricerche, CNR-IOM, Laboratorio TASC, Area Science Park, I-34149 Trieste, Italy;1. CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ad Ambientali, 98166, V.le F. Stagno D''Alcontres 31, Messina, Italy;2. Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ad Ambientali, and C.I.R.C.M.S.B., University of Messina, V.le F. Stagno D''Alcontres 31, Vill. S. Agata, 98166, Messina, Italy;3. CNR-ITAE Istituto di Tecnologie Avanzate per l’Energia, Via Salita Santa Lucia Sopra Contesse 5, 98126, Messina, Italy |
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| Abstract: | A novel approach to solar energy conversion is presented on the basis of photoinduced heterogeneous electron transfer at polarised interfaces between two immiscible electrolyte solutions. Preliminary studies at the water|1,2-dichloroethane interface sensitised by water-soluble zinc porphyrin heterodimers exhibited conversion efficiencies around 0.1%, corresponding to a photocurrent to absorbed photon flux ratio close to unity. The conversion efficiency is increased in the presence of redox couples acting as supersensitiser in the aqueous phase. The characteristic power relationship for these interfaces is also presented, and the possibility of solar cells where no solid electrodes are directly involved in the photogeneration and transport of charge carriers is envisaged. |
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