|
|
|
|
| LEADER |
01000caa a22002652 4500 |
| 001 |
NLM280117175 |
| 003 |
DE-627 |
| 005 |
20250222225723.0 |
| 007 |
cr uuu---uuuuu |
| 008 |
231225s2018 xx |||||o 00| ||eng c |
| 024 |
7 |
|
|a 10.1002/adma.201705942
|2 doi
|
| 028 |
5 |
2 |
|a pubmed25n0933.xml
|
| 035 |
|
|
|a (DE-627)NLM280117175
|
| 035 |
|
|
|a (NLM)29349887
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Hong, Min
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Realizing zT of 2.3 in Ge1-x-y Sbx Iny Te via Reducing the Phase-Transition Temperature and Introducing Resonant Energy Doping
|
| 264 |
|
1 |
|c 2018
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ƒaComputermedien
|b c
|2 rdamedia
|
| 338 |
|
|
|a ƒa Online-Ressource
|b cr
|2 rdacarrier
|
| 500 |
|
|
|a Date Completed 01.08.2018
|
| 500 |
|
|
|a Date Revised 30.09.2020
|
| 500 |
|
|
|a published: Print-Electronic
|
| 500 |
|
|
|a Citation Status PubMed-not-MEDLINE
|
| 520 |
|
|
|a © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
|
| 520 |
|
|
|a GeTe with rhombohedral-to-cubic phase transition is a promising lead-free thermoelectric candidate. Herein, theoretical studies reveal that cubic GeTe has superior thermoelectric behavior, which is linked to (1) the two valence bands to enhance the electronic transport coefficients and (2) stronger enharmonic phonon-phonon interactions to ensure a lower intrinsic thermal conductivity. Experimentally, based on Ge1-x Sbx Te with optimized carrier concentration, a record-high figure-of-merit of 2.3 is achieved via further doping with In, which induces the distortion of the density of states near the Fermi level. Moreover, Sb and In codoping reduces the phase-transition temperature to extend the better thermoelectric behavior of cubic GeTe to low temperature. Additionally, electronic microscopy characterization demonstrates grain boundaries, a high-density of stacking faults, and nanoscale precipitates, which together with the inevitable point defects result in a dramatically decreased thermal conductivity. The fundamental investigation and experimental demonstration provide an important direction for the development of high-performance Pb-free thermoelectric materials
|
| 650 |
|
4 |
|a Journal Article
|
| 650 |
|
4 |
|a GeTe alloys
|
| 650 |
|
4 |
|a density-functional-theory calculations
|
| 650 |
|
4 |
|a phase transition
|
| 650 |
|
4 |
|a phonon dynamics
|
| 650 |
|
4 |
|a thermoelectrics
|
| 700 |
1 |
|
|a Chen, Zhi-Gang
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Yang, Lei
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Zou, Yi-Chao
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Dargusch, Matthew S
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Wang, Hao
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Zou, Jin
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 30(2018), 11 vom: 09. März
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
|
| 773 |
1 |
8 |
|g volume:30
|g year:2018
|g number:11
|g day:09
|g month:03
|
| 856 |
4 |
0 |
|u http://dx.doi.org/10.1002/adma.201705942
|3 Volltext
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_350
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 30
|j 2018
|e 11
|b 09
|c 03
|