Abstract

By changing the concentration ratio (zinc-phthalocyanine-ZnPhTc:Fullerene-C60 from ZnPhTc:C60 = 1:0 through ZnPhTc:C60 = 1:1, to 1 C60: ZnPhTc = 1:0) in the active layer, as well as the architecture of the organic solar cells (OSC), a substanial increase of their short-circuit current is achieved. We suggest that the blurred interlayer boundaries lead to an enhanced motion of the holes and the electrons to the electrodes – ITO and Al respectively. Regardless of the shorter distances between the places of excitons creation, the excitons have enough "life-time" for diffusion to the suitable places where their decomposition to the charge carriers – holes and electrons, takes place. This is one of the well-known approaches to achieve a higher efficiency of the OSCs. We thus suggest that the possible interactions and processes discussed are obviously essential prerequisites for improving the functional parameters of the OSCs.

Details

Title
Improvement of the organic solar cells functional parameters
Author
Dimov, D 1 ; Spassova, I 2 ; Danev, G 2 ; Zhivkov, I 3 ; Assa, J 2 

 'Acad. J. Malinowski Institute of Optical Materials and Technologies, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 109, 1113 Sofia, Bulgaria; To whom any correspondence should be addressed 
 'Acad. J. Malinowski Institute of Optical Materials and Technologies, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 109, 1113 Sofia, Bulgaria 
 'Acad. J. Malinowski Institute of Optical Materials and Technologies, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 109, 1113 Sofia, Bulgaria; Faculty of Chemistry, Center for Materials Research, Brno University of Technology, 118 Purkynova, 612 00 Brno, The Czech Republic 
Publication year
2014
Publication date
May 2014
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2576666876
Copyright
© 2014. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.