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Title: Misfit layered Ca3Co4O9 as a high figure of merit p-type transparent conducting oxide film through solution processing

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4871506· OSTI ID:1383731

Ca3Co4O9 thin films synthesized through solution processing are shown to be high-performing, p-type transparent conducting oxides (TCOs). The synthesis method is a cost-effective and scalable process that consists of sol-gel chemistry, spin coating, and heat treatments. The process parameters can be varied to produce TCO thin films with sheet resistance as low as 5.7 kΩ/sq ($ρ ≈$ 57 m$$Ω$$ cm) or with average visible range transparency as high as 67%. The most conductive Ca3Co4O9 TCO thin film has near infrared region optical transmission as high as 85%. The figure of merit (FOM) for the top-performing Ca3Co4O9 thin film (151 M$$Ω$$-1) is higher than FOM values reported in the literature for all other solution processed, p-type TCO thin films and higher than most others prepared by physical vapor deposition and chemical vapor deposition. Transparent conductivity in misfit layered oxides presents new opportunities for TCO compositions.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Energy Materials Center at Cornell (EMC2)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0001086
OSTI ID:
1383731
Journal Information:
Applied Physics Letters, Vol. 104, Issue 16; Related Information: Emc2 partners with Cornell University (lead); Lawrence Berkeley National Laboratory; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 30 works
Citation information provided by
Web of Science

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Cited By (1)

Perovskite Sr-Doped LaCrO 3 as a New p-Type Transparent Conducting Oxide journal August 2015