Journal
OPTICS EXPRESS
Volume 19, Issue 10, Pages A361-A368Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.19.00A361
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Funding
- National Natural Science Foundation of China [10934001, 60878019, 10821062]
- National Basic Research Program [2007CB307000, 2009CB930504]
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The spectral response of Poly(3-hexylthiophene) (P3HT): 1-(3-methoxycarbonyl)-propyl-1-phenyl-(6,6)C-61 (PCBM) heterojunction film is between 350 nm and 650 nm, meaning that a lot of the sunlight is lost at ultraviolet and infrared regions. We fabricated solar cells by the attachment of a fluorescence layer which absorbs UV light, and emit visible light which will be re-used by P3HT, and thus the absorption spectrum is expanded. Since N,N'-bis(3-methylphenyl)-N,N'-bis(phenyl)-benzidine (TPD) has high reflectance in the visible range, the usage of UV light will not manifest; when LiF is added as an antireflection layer, PCE was enhanced from 2.50% to 2.68%. (C) 2011 Optical Society of America
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