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Son, Jae Sung
Nanomaterials Science and Engineering Lab (NSE)
Research Interests
  • Nanoparticle, 3D printing, Thermoelectrics, Electronics

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Colloidal synthesis and thermoelectric properties of La-doped SrTiO3 nanoparticles

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dc.contributor.author Park, Kunsu ko
dc.contributor.author Son, Jae Sung ko
dc.contributor.author Woo, Sung Ill ko
dc.contributor.author Shin, Kwangsoo ko
dc.contributor.author Oh, Min-Wook ko
dc.contributor.author Park, Su-Dong ko
dc.contributor.author Hyeon, Taeghwan ko
dc.date.available 2015-01-19T00:05:13Z -
dc.date.created 2014-10-15 ko
dc.date.issued 2014-03 -
dc.identifier.citation JOURNAL OF MATERIALS CHEMISTRY A, v.2, no.12, pp.4217 - 4224 ko
dc.identifier.issn 2050-7488 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/10167 -
dc.description.abstract We describe n-type nanostructured bulk thermoelectric La-doped SrTiO3 materials produced by spark plasma sintering of chemically synthesized colloidal nanocrystals. The La doping levels could be readily controlled from 3 to 9.0 at% by varying the experimental conditions. We found that nanoscale interfaces were preserved even after the sintering process, and the thermoelectric properties of the nanostructured bulk La-doped SrTiO3 were characterized. An enhanced thermoelectric efficiency was observed and attributed to the large decrease in thermal conductivity obtained with no significant change in the Seebeck coefficient or electrical conductivity. The nanostructured bulk of the La-doped SrTiO3 exhibited a maximum ZT of similar to 0.37 at 973 K at 9.0 at% La doping, which is one of the highest values reported for doped SrTiO3. Furthermore, the materials showed high thermal stability, which is important for practical high-temperature thermoelectric applications. This report demonstrates the high potential for low-cost thermoelectric energy production using highly stable and inexpensive oxide materials. ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.publisher ROYAL SOC CHEMISTRYROYAL SOC CHEMISTRY ko
dc.subject FIGURE-OF-MERIT ko
dc.subject HYDROTHERMAL SYNTHESIS ko
dc.subject SILICON NANOWIRES ko
dc.subject NANOCRYSTALS ko
dc.subject PERFORMANCE ko
dc.subject OXIDE ko
dc.subject NANOSTRUCTURES ko
dc.subject ENHANCEMENT ko
dc.subject CU2CDSNSE4 ko
dc.subject EFFICIENCY ko
dc.title Colloidal synthesis and thermoelectric properties of La-doped SrTiO3 nanoparticles ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84897643751 ko
dc.identifier.wosid 000332388900018 ko
dc.type.rims ART ko
dc.description.wostc 9 *
dc.description.scopustc 7 *
dc.description.scopustc 7 *
dc.date.tcdate 2015-12-28 *
dc.date.scptcdate 2015-11-04 *
dc.date.scptcdate 2015-11-04 *
dc.identifier.doi 10.1039/c3ta14699e ko
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