Journal
JAPANESE JOURNAL OF APPLIED PHYSICS
Volume 48, Issue 2, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1143/JJAP.48.020208
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Funding
- Basic Research Program of the Korea Science and Engineering Foundation [R012006-000-10140-0]
- National Research Foundation of Korea [과C6A1904] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We demonstrate bulk heterojunction polymer solar cells fabricated by screen-printing, employing a blend of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C-61 butyric acid methyl ester (PCBM). The devices with the structure of indium-tin oxide (ITO)/poly(3,4-ethylenedioxythiophene) (PEDOT):poly(styrene sulfonate) (PSS)/P3HT:PCBM/Al was prepared in ambient condition with four different organic solvents. The screen-printed active layer using chloroform solvent exhibits improved surface morphology comparable to that of the spin-coated layer, resulting in the maximum efficiency of 4.23% under AM1.5 illumination at 1,000W/m(2). We also show the advantage of screen-printing for fabricating the polymer solar cells by connecting three sub-cells in series on the same substrate. (C) 2009 The Japan Society of Applied Physics
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