Sökning: WFRF:(Parsa Parva) >
Electrophoretic ass...
Electrophoretic assembly and electronic transport properties of rapidly synthesized Sb2Te3 nanoparticles
-
- Batili, Hazal (författare)
- KTH,Biomedicinsk fysik och röntgenfysik
-
- Hamawandi, Bejan, PhD (författare)
- KTH,Biomedicinsk fysik och röntgenfysik
-
- Parsa, Parva (författare)
- KTH,Biomedicinsk fysik och röntgenfysik
-
visa fler...
-
- Ergül, Adem, 1980- (författare)
- KTH,Biomedicinsk fysik och röntgenfysik
-
- Szukiewicz, Rafal (författare)
- Univ Wroclaw, Inst Expt Phys, Maxa Borna 9, PL-50204 Wroclaw, Poland.
-
- Kuchowicz, Maciej (författare)
- Univ Wroclaw, Inst Expt Phys, Maxa Borna 9, PL-50204 Wroclaw, Poland.
-
- Toprak, Muhammet, 1973- (författare)
- KTH,Biomedicinsk fysik och röntgenfysik
-
visa färre...
-
(creator_code:org_t)
- Elsevier BV, 2023
- 2023
- Engelska.
-
Ingår i: Applied Surface Science. - : Elsevier BV. - 0169-4332 .- 1873-5584. ; 637
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- With the recent advances in thermoelectric (TE) technology, there is an increasing demand to develop thick films that would enable large-scale TE devices. Assembly of TE-films from size and morphology-controlled nano particles has been a challenging issue that can be addressed by the use of electrophoretic deposition (EPD) technique. In this work, morphology-controlled Sb2Te3 nanoparticles were synthesized through microwave assisted thermolysis, which were subsequently used for EPD of TE films on specially developed glass substrates. The electronic transport properties were measured in the temp-range of 22-45 degrees C. The as-made EPD films showed a high initial resistance, ascribed to high porosity and the presence of surface oxide/passivating layers. The impact of two types of small organic molecules-as hexanedithiol and dodecanethiol, on the electronic transport was investigated, resulting in a significant improvement in the electrical conductivity of the films. The XPS analysis suggests that the thiols bind to the surface of nanoparticles through formation of sulfides. Seebeck coefficient in the range of + 160 to + 190 & mu;V/K was measured, revealing the p-type transport through the deposited films. Finally, a power factor of about 2.5 & mu;W/K2.m was estimated the first time for p-type EPD films, revealing the potential of the developed nanoparticles and substrate, the small molecule additives and the EPD process presented in this work.
Ämnesord
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Nyckelord
- Thermoelectric
- Antimony telluride
- Sb 2 Te 3
- Electrophoretic deposition
- EPD
- Thermoelectric power factor
- Seebeck coefficient
- Colloidal synthesis and stabilization
- Ligand exchange
- Photolithography
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas