Estamos realizando la búsqueda. Por favor, espere...


Spectroscopic study of Cu2+ and Cu+ ions in high-transmission glass. Electronic structure and Cu2+/Cu+ concentrations

Abstract: This work investigates the formation of photoluminescence centres in high-transmission glass (HTG) doped with Cu2O and their capability to transform the solar spectrum by absorption/emission via Stokes-shifted PL into a more efficient spectrum for photovoltaic applications. Among the centres formed in HTG, both green photoluminescent Cu+ and the non-photoluminescent Cu2+ centres are created but their relative concentration depends on the thermal treatment and the presence of other co-dopants. The measurement of the absorption coefficient ?(?) nearby the HTG optical gap for Cu+ bands is accomplished by following the two-thickness method. This procedure allows us to obtain the actual absorption coefficient for the spectrum of each formed centre, from which we obtain the relative concentration of Cu+/Cu2+ as well as their absolute values. The analysis of the spectra provides information on the absorption cross sections, transition energies and bandwidths, the knowledge of which is essential to check the suitability of such centres for photovoltaic applications in solar cells.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Autoría: Gomez S., Urra I., Valiente R., Rodriguez F.,

 Fuente: Journal of Physics Condensed Matter, 2010, 22(29), 295505

Editorial: IOP Publishing

 Año de publicación: 2010

Nº de páginas: 8

Tipo de publicación: Artículo de Revista

 DOI: 10.1088/0953-8984/22/29/295505

ISSN: 0953-8984,1361-648X

Url de la publicación: https://doi.org/10.1088/0953-8984/22/29/295505