TY - JOUR
T1 - Condenson-related thermoelectric properties and formation of coherent nanoinclusions in Te-substituted In4Se3 compounds
AU - Jeong, Mahn
AU - Lim, Young Soo
AU - Seo, Won Seon
AU - Lee, Jong Heun
AU - Park, Cheol Hee
AU - Sznajder, Malgorzata
AU - Kharkhalis, Lyubov Yu
AU - Bercha, Dariya M.
AU - Yang, Jihui
PY - 2013/12/28
Y1 - 2013/12/28
N2 - Thermoelectric transport properties of Te-substituted In4Se 3 compounds are presented in terms of the condenson state. Regardless of anionic substitution, the condenson-related charge and thermal transport properties were clearly observed in the anionic substituted In 4(Se0.95Te0.05)3-δ compound, and the enhanced thermoelectric performances were achieved due to the reduced lattice thermal conductivities by the Te alloying effect. Moreover, almost Te-free nanoinclusions, coherently embedded in the matrix, were discovered in the Te-substituted compounds. Detailed structural and compositional characterizations on the nanoinclusions strongly suggest that there is a certain relationship between the formation of the nanoinclusion and the condenson state, which governs the thermoelectric transport properties in the In 4Se3 material system.
AB - Thermoelectric transport properties of Te-substituted In4Se 3 compounds are presented in terms of the condenson state. Regardless of anionic substitution, the condenson-related charge and thermal transport properties were clearly observed in the anionic substituted In 4(Se0.95Te0.05)3-δ compound, and the enhanced thermoelectric performances were achieved due to the reduced lattice thermal conductivities by the Te alloying effect. Moreover, almost Te-free nanoinclusions, coherently embedded in the matrix, were discovered in the Te-substituted compounds. Detailed structural and compositional characterizations on the nanoinclusions strongly suggest that there is a certain relationship between the formation of the nanoinclusion and the condenson state, which governs the thermoelectric transport properties in the In 4Se3 material system.
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U2 - 10.1039/c3ta12408h
DO - 10.1039/c3ta12408h
M3 - Article
AN - SCOPUS:84887896392
VL - 1
SP - 15342
EP - 15347
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
SN - 2050-7488
IS - 48
ER -