Self-assembled 3D flower-like hierarchical Ti-doped Cu3SbSe4 microspheres with ultralow thermal conductivity and high zT
Article
Article Title | Self-assembled 3D flower-like hierarchical Ti-doped Cu3SbSe4 microspheres with ultralow thermal conductivity and high zT |
---|---|
ERA Journal ID | 201288 |
Article Category | Article |
Authors | Zhou, Tian (Author), Wang, Lijun (Author), Zheng, Shuqi (Author), Hong, Min (Author), Fang, Teng (Author), Bai, Peng-Peng (Author), Chang, Siyi (Author), Cui, Wenlin (Author), Shi, Xiaolei (Author), Zhao, Huaizhou (Author) and Chen, Zhi-Gang (Author) |
Journal Title | Nano Energy |
Journal Citation | 49, pp. 221-229 |
Number of Pages | 9 |
Year | 2018 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 2211-2855 |
2211-3282 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.nanoen.2018.04.035 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S2211285518302659?via%3Dihub |
Abstract | Self-assembled 3D flower-like hierarchical Ti-doped Cu3SbSe4 microspheres have been synthesised by a microwave-assisted solvothermal method. Through detailed structural characterization and analysis, we elucidate that the growth temperature is the key factor to tailor the hierarchical Cu3SbSe4 microspheres assembled from nanoparticles and nanosheets. Such unique structures can strengthen phonon scatterings, leading to an ultralow thermal conductivity of 0.38 W m(-1) K-1 at 623 K in the Ti-doped Cu3Sb0.93Ti0.07Se4 sample. Ti doping can also increase the hole concentration to the optimal level and consequently enhance the power factor in the Cu3Sb0.96Ti0.04Se4 sample, resulting in a promising peak zT of similar to 0.59 at 623 K, which approximately doubles that of the pristine Cu3SbSe4. This study demonstrates a facile wet chemical method to synthesise large-scale Cu3SbSe4-based thermoelectric materials, which provides an alternative methodology to fabricate non-toxic thermoelectric materials. |
Keywords | microwave-assisted solvothermal method; thermoelectric; flower-like hierarchical structure; Ti-doped Cu3SbSe4; performance bulk thermoelectrics; frequency phonon scatterings; diamond-like structure; coprecipitation synthesis; transport-properties; panoscopic approach; compound; chalcogenides; power; SNTE |
ANZSRC Field of Research 2020 | 340210. Solid state chemistry |
401807. Nanomaterials | |
401605. Functional materials | |
510403. Condensed matter modelling and density functional theory | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | China University of Petroleum, China |
Centre for Future Materials | |
Tsinghua University, China | |
University of Queensland | |
Chinese Academy of Sciences, China | |
University of Southern Queensland | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q5058/self-assembled-3d-flower-like-hierarchical-ti-doped-cu3sbse4-microspheres-with-ultralow-thermal-conductivity-and-high-zt
219
total views11
total downloads0
views this month0
downloads this month