Neodymium‐doped fluorochlorozirconate glasses as an upconversion model system for high efficiency solar cells | Zendy

Ahrens Bernd | Zendy; Löper Philipp | Zendy; Goldschmidt Jan Christoph | Zendy; Glunz Stefan | Zendy; Henke Bastian | Zendy; Miclea PaulTiberiu | Zendy; Schweizer Stefan | Zendy

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Neodymium‐doped fluorochlorozirconate glasses as an upconversion model system for high efficiency solar cells

Author(s) -

Ahrens Bernd,

Löper Philipp,

Goldschmidt Jan Christoph,

Glunz Stefan,

Henke Bastian,

Miclea PaulTiberiu,

Schweizer Stefan

Publication year - 2008

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.200880452

Subject(s) - photon upconversion , materials science , doping , neodymium , quantum efficiency , silicon , erbium , optoelectronics , ion , fluorescence , optics , chemistry , laser , physics , organic chemistry

Thermal processing of as‐made fluorozirconate glasses which were additionally doped with neodymium and chlorine ions leads to enhanced upconversion fluorescence intensities. The samples were annealed between 240 °C and 290 °C and the optimum value of upconversion intensity was found for the 270 °C sample. The development of glasses doped with Er, whose luminescence characteristics make it a better choice for application as an upconversion layer on silicon solar cells, is in progress. In addition, we present external quantum efficiency measurements of a silicon solar cell with a NaYF 4 :Er 3+ upconverter. We also show a theoretical analysis where erbium transitions can be enhanced selectively to increase upconversion efficiency. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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