Effect of mixed solvents on PCDTBT:PC 70BM based solar cells

From National Research Council Canada

DOI	Resolve DOI: https://doi.org/10.1016/j.orgel.2011.07.011
Author	Search for: Alem, S.¹; Search for: Chu, T.-Y.¹; Search for: Tse, S.C.¹; Search for: Wakim, S.¹; Search for: Lu, J.¹; Search for: Movileanu, R.¹; Search for: Tao, Y.¹; Search for: Bélanger, F.; Search for: Désilets, D.; Search for: Beaupré, S.; Search for: Leclerc, M.; Search for: Rodman, S.; Search for: Waller, D.; Search for: Gaudiana, R.
Affiliation	National Research Council of Canada. NRC Institute for Microstructural Sciences
Format	Text, Article
Subject	1 ,2-dichlorobenzene; Active area; Air mass; Benzothiadiazoles; Bulk heterojunction; Cosolvents; Device performance; Domain size; Fine tuning; Methyl esters; Mixed solvent; Mixing ratios; Polycarbazoles; Power conversion efficiencies; Butyric acid; Chlorine compounds; Conversion efficiency; Fatty acids; Heterojunctions; Morphology; Polycyclic aromatic hydrocarbons; Polymers; Solar cells; Solvents; Organic solvents
Abstract	We investigated the effect of solvents on the morphology, charge transport and device performance of poly[N-9″-hepta-decanyl-2,7-carbazole-alt-5,5- (4′,7′-di-2-thienyl-2′,1′,3′-benzothiadiazole)] (PCDTBT) and [6,6]-phenyl C71-butyric acid methyl ester (PC 70BM) based solar cells. To carry out this investigation, chloroform and 1,2-dichlorobenzene were chosen as good solvents of the two compounds. Films prepared with chloroform exhibit larger domains than those prepared with 1,2-dichlorobenzene and their size increases with the amount of PC 70BM. Fine tuning of the domain size was realized by using a solvent of mixed chloroform and 1,2-dichlorobenzene. At a mixing ratio of 50%:50%, a power conversion efficiency of 6.1% was achieved on PCDTBT:PC 70BM (1:3) devices with an active area of 1 cm 2, under air mass 1.5 global (AM 1.5 G) irradiation at 100 mW/cm 2. © 2011 Published by Elsevier B.V. All rights reserved.
Publication date	2011
In	Organic Electronics: physics, materials, applications 12, no. 11 (2011): 1788–1793.
Language	English
Peer reviewed	Yes
NPARC number	21271108
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Record identifier	f76b2af2-5bfc-4c12-8f5f-957fe6554564
Record created	2014-03-24
Record modified	2020-04-21

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