TY - JOUR
T1 - Thermoelectric performances in transparent ZnO films including nanowires as phonon scatterers
AU - Ishibe, Takafumi
AU - Tomeda, Atsuki
AU - Watanabe, Kentaro
AU - Nakamura, Yoshiaki
N1 - Funding Information:
A part of this work was supported in part by a Grant-in-Aid for Scientific Research A (16H02078), for Exploratory Research (15K13276), and for JSPS Research fellow (17J00328). A part of PLD in this work was supported by Nanotechnology Platform Project of the Ministry of Education, Culture, Sports, Science, and Technology, Japan (S-17-OS-0025).
Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2018/7/26
Y1 - 2018/7/26
N2 - We report the fabrication technique and electrical propertis of embedded-ZnO nanowires (NWs) structure for high-performance transparent thermoelectric materials. In fabrication technique, we revealed that the length of NW is less than 2 μm for embedding NWs. Our embedded-ZnO NWs structures showed a little smaller electrical conductivities than ZnO films (without ZnO NWs) at the carrier concentration of ∼ 1018 cm-3. However, at high carrier concentration, our embedded-ZnO NWs structures are expected to show high thermoelectric performances due to the drastic reduction of κ and smaller σ degradation, because there is the difference of MFP between electron and phonon. Our work showed the design guide to enhance the performance of transparent thermoelectric materials.
AB - We report the fabrication technique and electrical propertis of embedded-ZnO nanowires (NWs) structure for high-performance transparent thermoelectric materials. In fabrication technique, we revealed that the length of NW is less than 2 μm for embedding NWs. Our embedded-ZnO NWs structures showed a little smaller electrical conductivities than ZnO films (without ZnO NWs) at the carrier concentration of ∼ 1018 cm-3. However, at high carrier concentration, our embedded-ZnO NWs structures are expected to show high thermoelectric performances due to the drastic reduction of κ and smaller σ degradation, because there is the difference of MFP between electron and phonon. Our work showed the design guide to enhance the performance of transparent thermoelectric materials.
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U2 - 10.1088/1742-6596/1052/1/012126
DO - 10.1088/1742-6596/1052/1/012126
M3 - Conference article
AN - SCOPUS:85051323836
VL - 1052
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012126
T2 - 17th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2017
Y2 - 14 November 2017 through 17 November 2017
ER -