Thermoelectric properties of nanoporous Ge

Structure and Thermoelectric Properties of Bi2−xSbxTe3 Nanowires Grown in Flexible Nanoporous Polycarbonate Templates

Structure and Thermoelectric Properties of Bi2-xSbxTe₃ Nanowires Grown in Flexible Nanoporous Polycarbonate Templates.

We report the room-temperature growth of vertically aligned ternary Bi2-xSbxTe₃ nanowires of diameter ~200 nm and length ~12 µm, within flexible track-etched nanoporous polycarbonate (PC) templates via a one-step electrodeposition process. Bi2-xSbxTe₃ nanowires with compositions spanning the entire range from pure Bi₂Te₃ (x = 0) to pure Sb₂Te₃ (x = 2) were systematically grown within the nanopo...

EXPERIMENTAL EVIDENCE OF IMPROVED THERMOELECTRIC PROPERTIES AT 300K IN Si/Ge SUPERLATTICE STRUCTURES

We have found that it may be possible to obtain significant enhancement in ZT at 300K, over conventional bulk SiGe alloys, through the use of Si/Ge Superlattice (SL) structures. The Seebeck coefficient in Si/Ge SL structures was observed to increase rapidly with decreasing SL period with no loss of electrical conductivity. The carrier mobilities in Si/Ge SLs were higher than in a comparable thi...

Giant Seebeck effect in Ge-doped SnSe

Thermoelectric materials may contribute in the near future as new alternative sources of sustainable energy. Unprecedented thermoelectric properties in p-type SnSe single crystals have been recently reported, accompanied by extremely low thermal conductivity in polycrystalline samples. In order to enhance thermoelectric efficiency through proper tuning of this material we report a full structur...

Nanoporous Si as an efficient thermoelectric material.

Room-temperature thermoelectric properties of n-type crystalline Si with periodically arranged nanometer-sized pores are computed using a combination of classical molecular dynamics for lattice thermal conductivity and ab initio density functional theory for electrical conductivity, Seebeck coefficient, and electronic contribution to the thermal conductivity. The electrical conductivity is foun...