Phosphate glass with great concentration of uranyl and rare earth ions and its films for solar cell concentrators
- Gomel State Univ. (Belarus). Dept. of Physics
In past years much interest has been developed in lanthanides and uranyl doped glasses. The energy transfer phenomenon in these glasses produce interest for preparation of highly efficient laser materials and optical transformators. The authors present some experimental results about mechanisms of donor-acceptor interaction and energy transfer in highly activated by uranyl and three-valent rare earths ions cesium-phosphate glasses and luminescent converters and concentrators, using these glasses and his films. The investigation showed that donor-acceptor interaction proceed by exchange mechanism. Efficiency of energy transfer is about 0.9 for optimal composition of glasses. The quantum yield of luminescence of some lanthanides, in particular Nd{sup 3+}, more than 0.8. The reactive ions sputtering and following thermal treatment allows to receive optical quality thin films of discussed materials. Efficiency of transfer and quantum yield of luminescence in films reach more than 0.8 and 0.7 accordingly. Preliminary experiments of using the glasses as transforming filters in lasers shoved their prospectives for overall laser`s efficiency increasing. Collectors made on the base of UO{sub 2}{sup 2+}-Nd{sup 3+} glasses allows to increase on about 40% effectiveness of solar light energy in electric energy transformations by some cells.
- OSTI ID:
- 197628
- Report Number(s):
- CONF-950793-; ISBN 0-8194-1890-0; TRN: IM9612%%402
- Resource Relation:
- Conference: 40. annual meeting of the Society of Photo-Optical Instrumentation Engineers, San Diego, CA (United States), 9-14 Jul 1995; Other Information: PBD: 1995; Related Information: Is Part Of Optical materials technology for energy efficiency and solar energy conversion XIV; Lampert, C.M. [ed.] [Lawrence Berkeley Lab., CA (United States). Energy and Environment Div.]; Deb, S.K. [ed.] [National Renewable Energy Lab., Golden, CO (United States)]; Grandqvist, C.G. [ed.] [Uppsala Univ. (Sweden). Dept. of Technology]; PB: 379 p.; Proceedings/SPIE, Volume 2531
- Country of Publication:
- United States
- Language:
- English
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