TY - JOUR
T1 - Enhanced TE properties of Cu@Ag/Bi2Te3 nanocomposites by decoupling electrical and thermal properties
AU - Lu, Xiaofang
AU - Zheng, Qi
AU - Gu, Shijia
AU - Guo, Rui
AU - Su, Li
AU - Wang, Jiancheng
AU - Zhou, Zhenxing
AU - Fan, Yuchi
AU - Jiang, Wan
AU - Wang, Lianjun
N1 - Funding Information:
This work was funded by natural Science Foundation of China (Nos. 51774096 , 51871053 ), Shanghai Committee of Science and Technology (Nos. 16JC1401800 , 18JC1411200 ), the Fundamental Research Funds for the Central Universities (No. 19D110625 ), Program of Innovative Research Team in University of Ministry of Education of China (No. IRT16_R13 ).
Funding Information:
This work was funded by the National Natural Science Foundation of China (Nos. 51774096, 51871053), Shanghai Committee of Science and Technology (Nos. 16JC1401800, 18JC1411200), the Fundamental Research Funds for the Central Universities (No. 19D110625), Program of Innovative Research Team in University of Ministry of Education of China (No. IRT16_R13).
Publisher Copyright:
© 2020 The Author
PY - 2020/3
Y1 - 2020/3
N2 - Cu@Ag/Bi2Te3 nanocomposites were prepared for the first time by ultrasonic dispersion-rapid freeze-drying method combined with spark plasma sintering (SPS). By changing the content of Cu@Ag nanoparticle, we could modulate the temperature dependent thermoelectric properties. The highest ZT value can be obtained at 450 K for 1 vol% Cu@Ag/Bi2Te3, which is benefited from the decoupling of electrical and thermal properties. With the increase of electrical conductivity, the absolute value of Seebeck coefficient lifts while the thermal conductivity declines. Meanwhile, the average ZT value between 300 K and 475 K was 0.61 for 1 vol% Cu@Ag/Bi2Te3, which is much higher than that of pristine Bi2Te3. Therefore, the decoupling effect of Cu@Ag nanoparticles incorporation could be a promising method to broaden the application of Bi2Te3 based thermoelectric materials.
AB - Cu@Ag/Bi2Te3 nanocomposites were prepared for the first time by ultrasonic dispersion-rapid freeze-drying method combined with spark plasma sintering (SPS). By changing the content of Cu@Ag nanoparticle, we could modulate the temperature dependent thermoelectric properties. The highest ZT value can be obtained at 450 K for 1 vol% Cu@Ag/Bi2Te3, which is benefited from the decoupling of electrical and thermal properties. With the increase of electrical conductivity, the absolute value of Seebeck coefficient lifts while the thermal conductivity declines. Meanwhile, the average ZT value between 300 K and 475 K was 0.61 for 1 vol% Cu@Ag/Bi2Te3, which is much higher than that of pristine Bi2Te3. Therefore, the decoupling effect of Cu@Ag nanoparticles incorporation could be a promising method to broaden the application of Bi2Te3 based thermoelectric materials.
KW - BiTe
KW - Cu@Ag
KW - Decoupling effect
KW - Thermoelectric
KW - ZT
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U2 - 10.1016/j.cclet.2019.07.034
DO - 10.1016/j.cclet.2019.07.034
M3 - Article
AN - SCOPUS:85070370455
VL - 31
SP - 880
EP - 884
JO - Chinese Chemical Letters
JF - Chinese Chemical Letters
SN - 1001-8417
IS - 3
ER -