Up-Conversion in Er3+-Doped Ge25Ga5Sb5S65 Chalcogenide Glass for Enhancement of Silicon Solar Cell Efficiency

Author

Wagner, T. ; Strizik, L. ; Kostal, P. ; Frumar, M. ; Frumarova, B. ; Vlcek, Mil ; Benes, L. ; Liu, C. ; Heo, J.

Author_Institution

Dept. of Gen. & Inorg. Chem., Univ. of Pardubice, Pardubice, Czech Republic

fYear

2012

fDate

21-23 May 2012

Firstpage

1

Lastpage

3

Abstract

Er³⁺-doped Ge₂₅Ga₅Sb₅S₆₅ chalcogenide glass was studied as a potential material for up-conversion application to enhancement of silicon solar cell efficiency. Thermal properties were studied via DSC measurement, optical properties via variable angle spectroscopic ellipsometry and photoluminescence measurement. The host chalcogenide glass shows good thermal, chemical and physical properties. The band gap energy is ~2.23 eV which allows to emit green and red luminescent light from ⁴S_3/2 → ⁴I_15/2 and ⁴F_9/2 → ⁴I_15/2 4f-4f transitions of Er³⁺ ions under 800 nm pumping with Ti-sapphire tunable laser.

Keywords

chalcogenide glasses; ellipsometry; erbium; gallium compounds; germanium compounds; optical pumping; photoluminescence; sapphire; silicon; solar cells; titanium; Al₂O₃:Ti; DSC measurement; Ge₂₅Ga₅Sb₅S₆₅:Er³⁺; chalcogenide glass; electron volt energy 2.23 eV; luminescent light; optical properties; photoluminescence measurement; solar cell efficiency enhancement; thermal properties; tunable laser; variable angle spectroscopic ellipsometry; wavelength 800 nm; Glass; Laser excitation; Optical variables measurement; Silicon; Solids; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics and Optoelectronics (SOPO), 2012 Symposium on

Conference_Location

Shanghai

ISSN

2156-8464

Print_ISBN

978-1-4577-0909-8

Type

conf

DOI

10.1109/SOPO.2012.6271137

Filename

6271137