| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 6534534 | Solar Energy Materials and Solar Cells | 2016 | 6 Pages |
Abstract
This work investigates the photoluminescence properties of high transmission glass (HTG) doped with CeO2 and MnO as well as their capability to transform the solar spectrum by absorption/emission via energy transfer from Ce3+ to Mn2+ into a more efficient red-enhanced spectrum for traditional Si-based solar cells. We show that Mn3+ and Mn2+ centers are formed in HTG, their relative concentration depending on the heat treatment and the presence of other dopants like Ce3+. Co-doping with CeO2 aims to stabilize Mn2+ by avoiding Mn3+ formation. We investigate the possibility of energy transfer from UV-absorbing Ce3+ to Mn2+ as a way of enhancing the HTG capability for blue-UV to red light transformation. The solarization effect through the Mn2+/Mn3+ ratio is also investigated for different CeO2 concentrations by means of optical transmittance and emission/excitation spectroscopy. Following these results, we perform an analysis of the optically enriched HTG for photovoltaic applications.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Susana Gómez-Salces, Jose A. Barreda-Argüeso, Rafael Valiente, Fernando RodrÃguez,