title: Photovoltaic properties of Au/beta-carotene/n-Si organic solar cells.
abstract: Photovoltaic properties of Au/beta-carotene/n-Si organic solar cells characterized by current-voltage and capacitance-voltage measurements have been investigated. The photocurrent in the reverse direction increases with increasing illumination intensity. The I(sc) increases linearly with light intensity. The I(sc) dependence of light intensity follows a power law I(sc) approximately F(alpha). The exponent alpha was found to be 1.38. This indicates a monomolecular recombination in this device. Au/beta-carotene/n-Si organic solar cells give an open-circuit voltage of 0.316 V and a short-circuit current of 2.33 x 10(-4) A at light intensity of 6 W/m(2). The best conversion efficiency for Au/beta-carotene/n-Si solar cells was found to be 23.3% at a light intensity of 6 W/m(2).
authors.affiliation: Department of Physics, Faculty of Arts and Sciences, Firat University, Elazig, Turkey. fyhan@hotmail.com
authors.forename: F
authors.initials: F
authors.lastname: Yakuphanoglu
authors.forename: M E
authors.initials: ME
authors.lastname: Aydin
authors.forename: T
authors.initials: T
authors.lastname: Kiliçoglu