High Temperature Thermoelectric Oxides Engineered At Multiple Length Scales For Energy Harvesting | Zendy

Fumio S. Ohuchi | Zendy; Rajendra K. Bordia | Zendy

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High Temperature Thermoelectric Oxides Engineered At Multiple Length Scales For Energy Harvesting

Author(s) -

Fumio S. Ohuchi,

Rajendra K. Bordia

Publication year - 2014

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/1182544

Subject(s) - thermoelectric effect , x ray photoelectron spectroscopy , materials science , thermoelectric materials , phonon scattering , scattering , seebeck coefficient , phonon , phase (matter) , nanotechnology , chemical engineering , condensed matter physics , thermodynamics , composite material , chemistry , optics , physics , engineering , organic chemistry , thermal conductivity

Thermoelectric aspects of the processing parameters the n-type relaxors, including SrxBa1-xNb2O6 (SBN100x), Sr2Nb2O7 (SN) and SrBi2Nb2O9 (SBiN), were investigated. A solution combustion synthesis (SCS) route was devised to fabricate SBN, SN and SBiN nanoparticles with excellent phase purity. X-ray photoelectron spectroscopy (XPS) was used to deduce the local cation site occupancy, and detailed thermoelectric transport processes were investigated. Based on the identified behavior, effectiveness of pore formers on the thermoelectric performance was investigated with the goal of decreasing κ through enhanced phonon scattering while preserving the electron transport characteristics.

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