Determination of the optimum material parameters for intermediate band solar cells using diffusion model
Article first published online: 9 OCT 2012
Copyright © 2012 John Wiley & Sons, Ltd.
Progress in Photovoltaics: Research and Applications
Volume 22, Issue 5, pages 593–602, May 2014
How to Cite
Navruz, T. S. and Saritas, M. (2014), Determination of the optimum material parameters for intermediate band solar cells using diffusion model. Prog. Photovolt: Res. Appl., 22: 593–602. doi: 10.1002/pip.2283
- Issue published online: 13 APR 2014
- Article first published online: 9 OCT 2012
- Manuscript Accepted: 3 AUG 2012
- Manuscript Revised: 14 MAY 2012
- Manuscript Received: 27 MAR 2012
- intermediate band solar cell;
- diffusion model;
In this study, the optimum material parameters capable of providing high efficiencies close to the detailed balance limit are determined for intermediate band solar cells. A diffusion model, including the overlap effect between absorption coefficients, is used during the calculations for the first time. It is obtained that to achieve high efficiencies close to the detailed balance limit; the effective density of state value, NCV, should be higher than 1017 cm−3 and the carrier mobility should be larger than 200 cm2/Vs, where the light concentration should not be higher than nearly 1000 sun. Besides, it is found out that the optimum intermediate band level and the base width depend on the mobility and effective density of state values. So they need to be optimized according to the material parameters. The effect of overlap between absorption coefficients on the performance of intermediate band solar cells is also investigated. Copyright © 2012 John Wiley & Sons, Ltd.