Facile synthesis of PbTe nanoparticles and thin films in alkaline aqueous solution at room temperature
- Tongji University, Functional Materials Research Laboratory, 1239 Siping Road, Shanghai 200092 (China)
A novel, simple, and cost-effective route to PbTe nanoparticles and films is reported in this paper. The PbTe nanoparticles and films are fabricated by a chemical bath method, at room temperature and ambient pressure, using conventional chemicals as starting materials. The average grain size of the nanoparticles collected at the bottom of the bath is {approx}25 nm. The film deposited on glass substrate is dense, smooth, and uniform with silver gray metallic luster. The film exhibits p-type conduction and has a moderate Seebeck coefficient value ({approx}147 muV K{sup -1}) and low electrical conductivity ({approx}0.017 S cm{sup -1}). The formation mechanism of the PbTe nanoparticles and films is proposed. - PbTe nanoparticles and films were fabricated at room temperature and ambient pressure in an alkaline aqueous solution by a chemical bath method.
- OSTI ID:
- 21372435
- Journal Information:
- Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 12 Vol. 182; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AQUEOUS SOLUTIONS
CHALCOGENIDES
CHEMICAL COATING
DEPOSITION
DISPERSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FILMS
GLASS
HOMOGENEOUS MIXTURES
LEAD COMPOUNDS
LEAD TELLURIDES
MIXTURES
NANOSTRUCTURES
PHYSICAL PROPERTIES
SOLUTIONS
SURFACE COATING
TELLURIDES
TELLURIUM COMPOUNDS
TEMPERATURE RANGE
TEMPERATURE RANGE 0273-0400 K
THERMOELECTRIC PROPERTIES
THIN FILMS