2024-03-29T01:10:18Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00013450
2022-12-14T03:46:05Z
1309:1310
Sensitization of organic photovoltaic cells based on interlayer excitation energy transfer
Ichikawa, Musubu
Suto, Eiichi
Jeon, Hyeon-Gu
Taniguchi, Yoshio
Copyright (c) 2010 Elsevier B.V.
Organic solar cells
Organic photovoltaic cells
Exciton transfer
Excitation transfer
Energy transfer
Forster resonant excitation transfer
We incorporated an additional p-type organic semiconductor layer (APL) between the anode and the phthalocyanine layer, which is an indispensable p-type semiconductor layer (IPL) in forming a p/n junction with a fullerene C-60 layer. We used two thiophene/phenylene co-oligomers as the APL. The incorporation increases the short-circuit current density (J(SC)) and enhances incident photon-current conversion efficiency (IPCE) over the wavelength region where the APL shows strong absorption. Combined dependence of the APL/IPL implies that Forster resonance excitation transfer is the main factor in J(SC) and IPCE enhancements. We demonstrate clearly that the 'positive' hole injection barrier at the interface between the APL and the IPL impacts the smooth transportation of holes to the indium-tin-oxide anode. However, the small positive hole barrier of 0.1 eV has no noticeable influence on the fill factor of the current density versus voltage characteristic under photoirradiation, or on those devices with 'negative' hole barriers.
Article
Organic Electronics. 11(4):700-704 (2010)
ELSEVIER SCIENCE BV
2010-04
eng
journal article
AM
http://hdl.handle.net/10091/10717
https://soar-ir.repo.nii.ac.jp/records/13450
https://doi.org/10.1016/j.orgel.2009.12.023
10.1016/j.orgel.2009.12.023
1566-1199
AA11621763
Organic Electronics
11
4
700
704
https://soar-ir.repo.nii.ac.jp/record/13450/files/Sensitization_organic_photovoltaic_cells.pdf
application/pdf
448.3 kB
2015-09-28