English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The effect of K and K-Na substitution for Pb atoms in the rock salt latticeof PbTe was investigated to test a hypothesis for development of resonantstates in the valence band that may enhance the thermoelectric power. Wecombined high temperature Hall-effect, electrical conductivity and thermalconductivity measurements to show that K-Na co-doping do not form resonancestates but2 can control the energy difference of the maxima of the two primaryvalence sub-bands in PbTe. This leads to an enhanced interband interaction withrising temperature and a significant rise in the thermoelectric figure of meritof p-type PbTe. The experimental data can be explained by a combination of asingle and two-band model for the valence band of PbTe depending on holedensity that varies in the range of 1-15 x 10^19 cm^-3.

Thermoelectric enhancement in PbTe with K, Na co-doping from tuning the interaction of the light and heavy hole valence bands