Work

Rapid growth of fully-inorganic flexible Ca x CoO 2 thin films from a ligand free aqueous precursor ink for thermoelectric applications

Year: 2019

Type: article

Abstract: We demonstrate a ligand-free green chemical method for the rapid growth of nanoporous Ca0.35CoO2 thin films on sapphire and mica substrates from a water-based precursor ink, formulated by dissolving the precursor solid, composed of in situ prepared Ca2+-DMF and Co2+-DMF complexes. Mica serves as the flexible substrate as well as the sacrificial layer for the film transfer. Despite the presence of nanopores, the power factor of the flexible film Ca0.35CoO2-on-mica is above 0.50 × 10-4 W m-1 K-2 at around room temperature. The present technique is simple and cost-effective.

Source: Chemical Communications

DOI: 10.1039/c9cc03441b

Authors: Tridib Kumar Sinha, Jinho Lee, Jin Kuk Kim, Samit K. Ray, Biplab Paul

Institutions: Indian Institute of Technology Kharagpur, Gyeongsang National University, S.N. Bose National Centre for Basic Sciences, Linköping University

Language: English

Topic: Advanced Thermoelectric Materials and Devices

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid