DocumentCode
1685755
Title
Ultrafast charge separation in low band-gap polymer blend for photovoltaics
Author
Maiuri, Margherita ; Grancini, Giulia ; Fazzi, Daniele ; Egelhaaf, Hans-J ; Brida, Daniele ; Lanzani, Guglielmo ; Cerullo, Giulio
Author_Institution
Dipt. di Fis., Politec. di Milano, Milan, Italy
fYear
2012
Firstpage
1
Lastpage
2
Abstract
We observe ultrafast charge dissociation in a promising low-band-gap-polymer:fullerene blend for organic photovoltaics. An hot charge transfer state, precursor of free carriers, is formed in ~30 fs upon impulsive photoexcitation with excess energy.
Keywords
charge transfer states; fullerenes; high-speed optical techniques; narrow band gap semiconductors; photoexcitation; photovoltaic effects; polymer blends; excess energy; free carriers; hot charge transfer state; impulsive photoexcitation; low-band-gap-polymer:fullerene blend; organic photovoltaics; ultrafast charge dissociation; Charge transfer; Chemicals; Photovoltaic systems; Polymers; Probes; Tin;
fLanguage
English
Publisher
ieee
Conference_Titel
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location
San Jose, CA
Print_ISBN
978-1-4673-1839-6
Type
conf
Filename
6326875
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