Polymer-based solar cells having an active area of 1.6 cm{sup 2} fabricated via spray coating

Journal Article · Tue Dec 01 00:00:00 EST 2015 · APL Materials

DOI:https://doi.org/10.1063/1.4937553· OSTI ID:22499227

Scarratt, N. W.; Griffin, J.; Zhang, Y.; Wang, T. ^[1]; Yi, H.; Iraqi, A. ^[2]

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1. Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH (United Kingdom)
2. Department of Chemistry, University of Sheffield, Sheffield S3 7HF (United Kingdom)

We demonstrate the fabrication of polymer solar cells in which both a PEDOT:PSS hole transport and a PCDTBT:PC{sub 71}BM photoactive layer are deposited by spray-casting. Two device geometries are explored, with devices having a pixel area of 165 mm{sup 2} attaining a power conversion efficiency of 3.7%. Surface metrology indicates that the PEDOT:PSS and PCDTBT:PC{sub 71}BM layers have a roughness of 2.57 nm and 1.18 nm over an area of 100 μm{sup 2}. Light beam induced current mapping reveals fluctuations in current generation efficiency over length-scales of ∼2 mm, with the average photocurrent being 75% of its maximum value.

• OSTI ID: 22499227
• Journal Information: APL Materials, Vol. 3, Issue 12; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 2166-532X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
DEPOSITS
EFFICIENCY
POLYMERS
SOLAR CELLS
SPRAY COATING
SPRAYED COATINGS
SURFACES