Effect of external applied electric field on the silicon solar cell’s thermodynamic efficiency

الموضوعات : Journal of Theoretical and Applied Physics

R. Zieba Falama ¹ (Department of Renewable Energy, The Higher Institute of the Sahel, University of Maroua;Laboratory of Energy Research, Institute of Geological and Mining Research)
Justin Mibaile ² (Department of Physics, Higher Teachers’ Training College, University of Maroua)
E. Guemene Dountio ³ (Laboratory of Energy Research, Institute of Geological and Mining Research)
Noël Djongyang ⁴ (Department of Renewable Energy, The Higher Institute of the Sahel, University of Maroua)
Serge Y. Doka ⁵ (Department of Physics, Faculty of Science, University of Ngaoundéré)
Timoleon C. Kofane ⁶ (Department of Physics, Faculty of Science, University of Yaoundé I)

تاريخ الإصدار : 02 الأربعاء , جمادى الثانية, 1438

الکلمات المفتاحية: Improve efficiency, External applied electric fiel, Band, trap ionization of charge carr, Silicon solar cell,

ملخص المقالة :

AbstractThis 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.