Low-cost and environmentally benign selenides as promising thermoelectric materials

Low Dimensional Organic Compounds as Promising Thermoelectric Materials

The thermoelectric properties of quasi-one-dimensional (Q1D) organic crystals with p-type conduction band are studied. Two main electron-phonon interaction mechanisms and carriers scattering on impurities are taken into account. The relaxation time as a function of carrier energy is analyzed for different values of crystal parameters. It is shown that under certain conditions, when the interfer...

Thermoelectric Properties of Selenides Spinels

Many compounds with the spinel structure type have been analyzed for their thermoelectric properties. Published data was used to augment experimental results presented here to select promising thermoelectric spinels. Compounds studied here include C~~,~Al~.5Cr2Se4, Cu05Coo.5Cr2Se4, C~o,~Ino,~Cr2Se~ and CuIr2Se4. Many exhibit low lattice thermal conductivity of about 20 mW/cmK, independent of te...

Develop a Low Cost, Safe and Environmentally Benign High Energy and High Rate Reserve Battery

Electrochemical Characterization of Low-Cost Lithium-Iron Orthosilicate Samples as Cathode Materials of Lithium-Ion Battery

Lithium-iron-orthosilicate is one of the most promising cathode materials for Li-ion batteries due to its safety, environmental brightness and potentially low cost. In order to produce a low cost cathode material, Li2FeSiO4/C samples are synthesized via sol-gel (SG; one sample) and solid state (SS; two samples with different carbon content), starting from Fe (III) in the raw materials (lo...

New Directions for Low-Dimensional Thermoelectric Materials

Providing a sustainable supply of energy to the world’s population will become a major societal problem for the 21st century as fossil fuel supplies decrease and world demand increases. Thermoelectric phenomena, which involve the conversion between thermal and electrical energy, and provide a method for heating and cooling materials, are expected to play an increasingly important role in meetin...