In:
Applied Physics Letters, AIP Publishing, Vol. 102, No. 13 ( 2013-04-01)
Kurzfassung:
We investigated carrier formation dynamics in a small-molecular bulk heterojunction solar cell, 2,5-di-(2-ethylhexyl)-3,6-bis-(5″-n-hexy-[2,2′,5′,2″] terthiophen-5-yl)-pyrrolo[3,4-c]pyrrolo-1,4-dione/[6,6] -phenyl C71-butyric acid methyl ester, with low bandgap (Egap≈1.5 eV). The photoinduced absorption (PIA) spectra of the blend film were decomposed into three PIAs, i.e., those due to donor exciton (D*), acceptor exciton (A*), and mobile carrier (D+). The analysis revealed carrier conversion from D* with a conversion time of ∼1.3 ps.
Materialart:
Online-Ressource
ISSN:
0003-6951
,
1077-3118
Sprache:
Englisch
Verlag:
AIP Publishing
Publikationsdatum:
2013
ZDB Id:
211245-0
ZDB Id:
1469436-0
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