Thermoelectricity: Science and Engineering |
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Page 62
... modes in nonpolar crys- tals will be discussed next . In nonpolar crystals , the scattering is produced by the deformation produced by the optical phonon . Harrison 22 has made estimates of the relative amount of acoustic mode and optical ...
... modes in nonpolar crys- tals will be discussed next . In nonpolar crystals , the scattering is produced by the deformation produced by the optical phonon . Harrison 22 has made estimates of the relative amount of acoustic mode and optical ...
Page 63
... mode scattering for T > 0 , may decrease more rapidly than T- " because of the possibility of scattering by emission ... mode lattice scattering and non - polar , optical mode lattice scattering . O , is the characteristic tempera- ture ...
... mode scattering for T > 0 , may decrease more rapidly than T- " because of the possibility of scattering by emission ... mode lattice scattering and non - polar , optical mode lattice scattering . O , is the characteristic tempera- ture ...
Page 358
... mode lattice scattering if the mobility due to ionized impurity scat- tering is not too much smaller than the ... mode lattice mobility varies as a m * - while polar opti- cal mode lattice mobility goes as μ , m * - * / . From Fig . 11.9 ...
... mode lattice scattering if the mobility due to ionized impurity scat- tering is not too much smaller than the ... mode lattice mobility varies as a m * - while polar opti- cal mode lattice mobility goes as μ , m * - * / . From Fig . 11.9 ...
Contents
Introduction By R R Heikes and R W Ure | 1 |
Classical and Irreversible Thermodynamic Treatment of Ther | 7 |
Theoretical Calculation of Device Performance By R W Ure | 15 |
Copyright | |
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addition alloy applied approximately assumed atoms band calculated carrier Chapter charge composition compounds concentration considered constant couple crystal decrease defects density dependence determined device difference diffusion direction discussed distribution doping effect efficiency electrical electrons elements energy equal equation example figure of merit flow function give given gradient growth heat hole important impurity increase interface ions larger lattice limit liquid materials maximum measured mechanism melting metal method mobility mode n-type obtained occur parameter performance phase phonon Phys position possible potential present produced properties range reason reduced reference region relation resistance result sample scattering Seebeck coefficient semiconductors shown in Fig shows single solid solute specimen structure surface temperature term theory thermal conductivity thermocouple thermoelectric thermoelectric materials tion unit usually vacancies valence