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.

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