Single-walled carbon nanotube transparent conductive films fabricated by reductive dissolution and spray coating for organic photovoltaics

Journal Article · Mon Dec 22 00:00:00 EST 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4904940· OSTI ID:22395591

Ostfeld, Aminy E.; Catheline, Amélie ^[1]; Ligsay, Kathleen; Kim, Kee-Chan; Fogden, Siân ^[2]; Chen, Zhihua ^[3]; Facchetti, Antonio ^[3]

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1. Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, California 94720 (United States)
2. Linde Nanomaterials, Linde LLC, 1970 Diamond Street, San Marcos, California 92078 (United States)
3. Polyera Corporation, 8045 Lamon Avenue, Skokie, Illinois 60077 (United States)

Solutions of unbundled and unbroken single-walled carbon nanotubes have been prepared using a reductive dissolution process. Transparent conductive films spray-coated from these solutions show a nearly twofold improvement in the ratio of electrical conductivity to optical absorptivity versus those deposited from conventional aqueous dispersions, due to substantial de-aggregation and sizable nanotube lengths. These transparent electrodes have been utilized to fabricate P3HT-PCBM organic solar cells achieving power conversion efficiencies up to 2.3%, comparable to those of solar cells using indium tin oxide transparent electrodes.

• OSTI ID: 22395591
• Journal Information: Applied Physics Letters, Vol. 105, Issue 25; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ABSORPTIVITY
CARBON NANOTUBES
COMPARATIVE EVALUATIONS
DISSOLUTION
ELECTRIC CONDUCTIVITY
FILMS
INDIUM COMPOUNDS
ORGANIC SOLAR CELLS
PHOTOVOLTAIC EFFECT
SPRAY COATING
SPRAYED COATINGS
TIN OXIDES