Title of article :
Effect of external applied electric field on the silicon solar cell’s thermodynamic efficiency
Author/Authors :
Zieba Falama, R Department of Renewable Energy - The Higher Institute of the Sahel - University of Maroua - P.O Box 46 - Maroua - Cameroon - Laboratory of Energy Research - Institute of Geological and Mining Research - P.O Box 4110 - Yaounde´ - Cameroon , Mibaile, Justin Department of Physics - Higher Teachers’ Training College - University of Maroua - P.O Box 55 - Maroua - Cameroon , Guemene Dountio, E Laboratory of Energy Research - Institute of Geological and Mining Research - P.O Box 4110 - Yaounde´ - Cameroon , Djongyang, Noe¨l Department of Renewable Energy - The Higher Institute of the Sahel - University of Maroua - P.O Box 46 - Maroua - Cameroon , Doka, Serge Y. Department of Physics - Faculty of Science - University of Ngaounde´re´ - P.O Box 454 - Ngaounde´re´ - Cameroon , Kofane, Timoleon C. Department of Physics - Faculty of Science - University of Yaounde´ I, P.O. Box. 812 - Yaounde´ - Cameroon
Abstract :
This paper presents a possible solution to improve the efficiency of photovoltaic solar cells. An external electric field is applied on a silicon photovoltaic solar cell, inducing band-trap ionization of charge carriers.
Output current is then monitored and the thermodynamic
efficiency is calculated. Results show on the one hand a
significant increase in efficiency for a certain margin of
applied electric field, and on the another hand the instabilities
of efficiency. A simple approach is then suggested
for the implementation of these results. An efficiency of
67% has been reached for an applied electric of 1586 V/
Cm.
Keywords :
Improve efficiency , External applied electric field , Band-trap ionization of charge carriers , Silicon solar cell
Journal title :
Journal of Theoretical and Applied Physics
