NEXT GENERATION TECHNOLOGIES FOR SOLAR ENERGY CONVERSION V
|
2014年
/
9178卷
关键词:
solar spectral conversion;
down shifting;
quantum dot;
luminescent solar concentrator;
QUANTUM-DOT CONCENTRATOR;
ENERGY-CONVERSION;
SELF-ABSORPTION;
THIN-FILMS;
EFFICIENCY;
PHOTOSTABILITY;
OPTIMIZATION;
FABRICATION;
EMISSION;
COMPLEX;
D O I:
10.1117/12.2061295
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
High efficiency photovoltaic devices combine full solar spectrum absorption and effective generation and collection of charge carriers, while commercial success depends on cost effectiveness in manufacturing. Spectrum modification using down shifting has been demonstrated in luminescent solar concentrators (LSCs) since the 1970s, as a cheap alternative for standard c-Si technology. LSCs consist of a highly transparent plastic plate, in which luminescent species are dispersed, which absorb incident light and emit light at a red-shifted wavelength, with high quantum efficiency. Material issues have hampered efficiency improvements, in particular re-absorption of light emitted by luminescent species and stability of these species. In this contribution, approaches are reviewed on minimizing re-absorption, which should allow surpassing the 10% luminescent solar concentrator efficiency barrier.