Preparation and Characterization of Electrodeposited CuxBi2Te3 Thermoelectric Films
Year: 2014
Type: article
Abstract: CuxBi2Te3films were prepared by chronopotentiometry electro-deposition on indium tin oxide (ITO)-coated glass substrates from an aqueous acidic electrolyte at room temperature. The films were deposited at the same current density but in electrolyte with different Cu2+concentrations: 0.1, 0.25, 0.5, 0.75 or 1mM. The phase composition and morphology of the films were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, and field emission scanning electron microscope, respectively. The electrical conductivity and Seebeck coefficient of the CuxBi2Te3films were measured after being transferred onto a non-conductive rubberized fabric support. All the films showed n-type conduction with Seebeck coefficient in the range of-63 to-84μV/K, and the electrical conductivity in the range of 90 to 185S/cm. The film deposited from an electrolyte with 0.5mM Cu2+showed higher power factor ~130 μW/K-2m-1.
Source: Materials science forum
Authors: Yue Chao Hu, Zhi Gang Zou, Ke Feng Cai
Institution: Tongji University
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W2243517180