Journal
SOLAR ENERGY
Volume 85, Issue 11, Pages 2571-2579Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2011.07.014
Keywords
Luminescent solar concentrator; Rare earth complex; Zero self-absorption; Eu3+; Theoretical simulation; Solar energy
Categories
Funding
- National Natural Science Foundation of China [21074123, 91027024, 50973101]
- Chinese Academy of Sciences [kjcx2-yw-m11]
- China Postdoctoral Science Foundation [20100470038]
- CAS
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Luminescent solar concentrator (LSC) employing Eu(TTA)(3)(TPPO)(2) (europium tris(2-thenoyl trifluoro acetonate)-di(triphenylphosphine oxide)) was fabricated in our work firstly, and then its current voltage (I-V performance under AM1.5G radiation with different radiation area were measured and compared with that of LSC employing dye. As there is no overlap between absorption spectrum and fluorescence spectrum of Eu(TTA)(3)(TPPO)(2), it is found that the power conversion efficiency of LSC employing Eu(TTA)3(TPPO)2 decreases ten times slower than that of LSC employing dye reported with the increment of radiation area under AM 1.5G. To accurately characterize the zero self-absorption loss of LSC employing rare earth complex more, external quantum efficiency (EQE) was also measured and simulated theoretically. When experiment data is compared with theoretical simulation, the measured EQE data at 380 nm is found to well coincide with theoretical result by taking host absorption loss into consideration. And the conclusion could be drawn that rare earth complex obviously shows zero self-absorption loss in use of LSC system and is proposed as a potential candidate for increasing the LSC efficiency. (C) 2011 Elsevier Ltd. All rights reserved.
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