Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Keyword
Articles 1 - 2 of 2
Full-Text Articles in Physics
Toward High-Performance Nanostructured Thermoelectric Materials: The Progress Of Bottom-Up Solution Chemistry Approaches, Yixin Zhao, Jeffrey S. Dyck, Clemens Burda
Toward High-Performance Nanostructured Thermoelectric Materials: The Progress Of Bottom-Up Solution Chemistry Approaches, Yixin Zhao, Jeffrey S. Dyck, Clemens Burda
Physics
Significant research effort has recently gone into the synthesis of thermoelectric nanomaterials through different chemical approaches since nanomaterials chemistry became a promising strategy for improving thermoelectric performance. Different thermoelectric nanocrystals, especially PbTe, Bi2Te3 and CoSb3, with various compositions and morphologies have been successfully prepared by solvo/hydrothermal, electrochemical, and ligand-based synthesis methods. Such nanoscale materials show not only substantial reduction in thermal conductivity due to increased phonon scattering at nanoscale grain boundaries and lower densities of phonon states but possibly also an enhancement in thermopower due to electronic quantum size effects. More recently, the notoriously low …
Photoexcitation And Photoionization From The 2p53p[5/2]2,3 Levels In Neon, M. A. Baig, I. A. Bokhari, M. Rafiq, M. A. Kalyar, T. Hussian, Raheel Ali, Naveed K. Piracha
Photoexcitation And Photoionization From The 2p53p[5/2]2,3 Levels In Neon, M. A. Baig, I. A. Bokhari, M. Rafiq, M. A. Kalyar, T. Hussian, Raheel Ali, Naveed K. Piracha
Physics
We present measurements of the excitation spectra from the 2p53p [5/2]3,2 levels in neon using two-step laser excitation and ionization in conjunction with an optogalvanic detection in dc and rf discharge cells. The 2p53p [5/2]3,2 intermediate levels have been approached via the collisionally populated 2p53s [3/2]2 metastable level. The Rydberg series 2p5(2P3/2)nd [7/2]4 (12 ⩽ n ⩽ 44), 2p5(2P3/2)ns [3/2]2 (13 ⩽ n ⩽ 35) and the parity forbidden transitions 2p5(2P3/2)np …