1(2), (2022):14-17. DOI: https://doi.org/10.46632/jmc/A/B/C
Vimala Saravanan
To assess the thermoelectric qualities of low-dimensional materials, a nanomaterial was created. Due to its inherent nanoscale structure, a one-dimensional thermoelectric material is predicted to have superior thermoelectric characteristics and low heat conductivity. High efficiency thermoelectric energy conversion devices can be realised by taking use of these better features. Graphene and hexagonal boron nitride (h-BN), two-dimensional nanomaterials, are thermally efficient. Due to the differences in the crystal lattice and electrical structure between graphene and h-BN, a new material with novel thermal properties is created when the two join to produce a planar C-BN hybrid structure or a van der Waals heterostructure. We concentrate on these new qualities while reviewing the two new materials, as their thermal properties affect their structure, size, and number of layers. To assess the thermoelectric qualities of low-dimensional materials, a micro-instrument was created. Due to its inherent nanoscale structure, a one-dimensional thermoelectric material is predicted to have superior thermoelectric characteristics and low heat conductivity. High efficiency thermoelectric energy conversion devices can be realised by taking use of these better features. In this study, we used micromachining to create microdevices to examine the thermoelectric characteristics of low-dimensional materials. The system comprises of a tiny thermocouple with a freely suspended heating element acting as the sensing element. Manipulation was used to place an array of Bi2Te3 nanowires made using the silicon template approach on the microdevice. To show the device’s ability to assess the thermoelectric properties of nanomaterials, measurements of the Bi2Te3 bundle’s electrical, thermal, and Beck coefficients were made. More information about this source text source text necessary for further translation details. We offer a synthetic method for producing Cu2ZnGeSe4 nanocrystals with a limited size range and a predetermined composition. By hot pressing, these nanocrystals were employed to create nanomaterials that were tightly packed. These nanoparticles’ Cu2ZnGeSe4 thermoelectric characteristics have been demonstrated to be very good. A figure of merit of up to 0.55 at 450 °C has already been achieved through early refinement of the nanocrystal composition. The performance of thermoelectric (TE) materials is currently the subject of intense research. One of the suggestions for enhancing their TE performance is nanostructuring. However, a nanomaterial’s shape can have a big impact on how it behaves under tension. In this study, we showed that this action uses a microwave-assisted chemical pathway to create zinc oxide (ZnO) in two distinct forms. The molar ratios of the initial precursors were altered to create nanoparticles (NPs) and nanorods (NRs). According to the results, NRs have better TE properties than NPs, especially at higher temperatures.
Wang, Jingang, Xijiao Mu, and Mengtao Sun. “The thermal, electrical and thermoelectric properties of graphene nanomaterials.” Nanomaterials9, no. 2 (2019): 218.
Ono, Takahito, Chia-cheng Fan, and Masayoshi Esashi. “Micro instrumentation for characterizing thermoelectric properties of nanomaterials.” Journal of Micromechanics and Microengineering15, no. 1 (2004): 1.
Ibáñez, Maria, Reza Zamani, Aaron LaLonde, Doris Cadavid, Wenhua Li, Alexey Shavel, Jordi Arbiol et al. “Cu2ZnGeSe4 nanocrystals: synthesis and thermoelectric properties.” Journal of the American Chemical Society134, no. 9 (2012): 4060-4063.
Baghdadi, Neazar, Numan Salah, Ahmed Alshahrie, A. R. Ansari, and Kunihito Koumoto. “The effect of morphological modification on the thermoelectric properties of ZnO nanomaterials.” Ceramics International47, no. 5 (2021): 6169-6178.
Liang, Beibei, Zijun Song, Minghui Wang, Lianjun Wang, and Wan Jiang. “Fabrication and thermoelectric properties of graphene/composite materials.” Journal of Nanomaterials2013 (2013).
Wang, Jingang, Xijiao Mu, Xinxin Wang, Nan Wang, Fengcai Ma, Wenjie Liang, and Mengtao Sun. “The thermal and thermoelectric properties of in-plane C-BN hybrid structures and graphene/h-BN van der Waals heterostructures.” Materials Today Physics5 (2018): 29-57.
Du, Y., K. F. Cai, H. Li, and B. J. An. “The Influence of Sintering Temperature on the Microstructure and Thermoelectric Properties of n-Type Bi2Te3− x Se x Nanomaterials.” Journal of electronic materials40, no. 5 (2011): 518-522.
Ibáñez, Maria, Reza Zamani, Stéphane Gorsse, Jiandong Fan, Silvia Ortega, Doris Cadavid, Joan Ramon Morante, Jordi Arbiol, and Andreu Cabot. “Core–shell nanoparticles as building blocks for the bottom-up production of functional nanocomposites: PbTe–PbS thermoelectric properties.” ACS nano7, no. 3 (2013): 2573-2586.
Tian, Yuan, Mohammed R. Sakr, Jesse M. Kinder, Dong Liang, Michael J. MacDonald, Richard LJ Qiu, Hong-Jun Gao, and Xuan PA Gao. “One-dimensional quantum confinement effect modulated thermoelectric properties in InAs nanowires.” Nano letters12, no. 12 (2012): 6492-6497.
Aabdin, Zainul, N. Peranio, O. Eibl, W. Töllner, K. Nielsch, D. Bessas, R. P. Hermann et al. “Nanostructure, excitations, and thermoelectric properties of Bi2Te3-based nanomaterials.” Journal of electronic materials41, no. 6 (2012): 1792-1798.
Zhang, Peng, Yukun Li, Yongshang Zhang, Ruohan Hou, Xilai Zhang, Chao Xue, Shaobin Wang, Bicheng Zhu, Neng Li, and Guosheng Shao. “Photogenerated electron transfer process in heterojunctions: in situ irradiation XPS.” Small Methods4, no. 9 (2020): 2000214.
Gleiter, Herbert. “Nanostructured materials: basic concepts and microstructure.” Acta materialia48, no. 1 (2000): 1-29.
Viswanathan, Venkatachalapathy, T. Laha, Kantesh Balani, Arvind Agarwal, and S. Seal. “Challenges and advances in nanocomposite processing techniques.” Materials Science and Engineering: R: Reports54, no. 5-6 (2006): 121-285.
Beecroft, Laura L., and Christopher K. Ober. “Nanocomposite materials for optical applications.” Chemistry of materials9, no. 6 (1997): 1302-1317.
Ishida, Hatsuo, Sandi Campbell, and John Blackwell. “General approach to nanocomposite preparation.” Chemistry of Materials12, no. 5 (2000): 1260-1267.
Vimala Saravanan, “The Influence of Thermoelectric Properties of Nanomaterial and Applications”, Journal on Materials and its Characterization, 1(2), (2022):14-17.