Review
Engineering, Electrical & Electronic
Qihao Zhang, Kangfa Deng, Lennart Wilkens, Heiko Reith, Kornelius Nielsch
Summary: This review examines the development of micro-thermoelectric devices, exploring progress in device design, integration, and performance, as well as the potential applications of the technology in cooling, power generation, and sensing. These devices offer faster response time, higher resolution, and greater power density compared to their commercial counterparts, making them crucial for highly integrated electronic devices, the Internet of Things, and flexible and wearable technology.
NATURE ELECTRONICS
(2022)
Article
Nanoscience & Nanotechnology
Bingfei Nan, Xuan Song, Cheng Chang, Ke Xiao, Yu Zhang, Linlin Yang, Sharona Horta, Junshan Li, Khak Ho Lim, Maria Ibanez, Andreu Cabot
Summary: We report the development of a thiol-free tin telluride (SnTe) precursor that can be thermally decomposed to produce different-sized SnTe crystals. By decomposing the liquid SnTe precursor containing a dispersion of Cu1.5Te colloidal nanoparticles, we further engineer SnTe-Cu2SnTe3 nanocomposites with a homogeneous phase distribution. The presence of Cu effectively improves the electrical conductivity of SnTe and reduces the lattice thermal conductivity, leading to enhanced power factors and thermoelectric figures of merit.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Abid Ahmad, Bin Zhu, Zhongbin Wang, Zhigang Gui, Wu Wang, Tiancheng Wang, Yong Yu, Li Huang, Jiaqing He
Summary: Significant advancements have been made in thermoelectric technology, with the development of a new thermoelectric material containing silver doping. It exhibits high thermoelectric performance and significantly reduces thermal conductivity through entropy optimization and atomic doping, thereby improving the conversion efficiency and output power of the thermoelectric module.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Rizwan Akram, Jan Sher Khan, Zahid Qamar, Saima Rafique, Mozaffar Hussain, Farrukh Bashir Kayani
Summary: Polyvinylpyrrolidone (PVP)-assisted bismuth telluride (Bi2Te3) fibers were synthesized by electrospinning technique, and compacted at a constant temperature. The compacted fibers showed improved thermoelectric performance and optical properties.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Physical
Jinfeng Dong, Yilin Jiang, Jiawei Liu, Jun Pei, Xian Yi Tan, Haihua Hu, Ady Suwardi, Ning Jia, Chuntai Liu, Qiang Zhu, Qingyu Yan, Jing-Feng Li
Summary: In this study, composition-insensitive GeTe-based compounds with high thermoelectric coefficients and excellent module performance were developed, suitable for waste heat recovery and solid-state cooling applications.
Article
Physics, Applied
Jiepu Sun, Zhong Shu, Jianmin Yang, Tiancheng Wang, Bin Zhu, Jiaqing He
Summary: The study presented the achievement of high thermoelectric performance in Bi2Te3-based materials through Sb doping, which optimizes thermal and electrical transport properties simultaneously.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Daria Pankratova, Silvia Maria Giacomelli, Khabib Yusupov, Farid Akhtar, Alberto Vomiero
Summary: This study aims to produce high-entropy oxides composed of Co-Cr-Fe-Mn-Ni-O through spark plasma sintering (SPS), testing their thermoelectric (TE) properties. The researchers successfully obtained the material using a faster and scalable process compared to the previous technique.
Article
Materials Science, Ceramics
Minsu Kim, Dabin Park, Jooheon Kim
Summary: Carbon cloth was used as a flexible substrate to synthesize bismuth telluride particles with added selenium for improved thermoelectric performance. The maximum power factor reached 1300 mu W/mK(2) for the 30% Se-doped sample, demonstrating the potential of carbon cloth substrate for low temperature range applications.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Jinmeng Li, Tian Xu, Zheng Ma, Wang Li, Yongxin Qian, Yang Tao, Yinchao Wei, Qinghui Jiang, Yubo Luo, Junyou Yang
Summary: A new hybrid hydrogel thermoelectric material PAAc/XG/Bi2Se0.3Te2.7 was prepared by in situ polymerization method, which exhibits high stretchable and self-healable performance, as well as good thermoelectric performance. The sample with Bi2Se0.3Te2.7 content of 1.5 wt% shows a room temperature Seebeck coefficient of -0.45 mV K-1, and demonstrates an open-circuit voltage of -17.91 mV and output power of 38.1 nW at a temperature difference of 40 K. The hybrid thermoelectric hydrogel can automatically recover its electrical characteristics within 2.0 s after being completely cut off, and the healed hydrogel retains over 99% of its initial power output. Such stretchable and self-healable hybrid hydrogel thermoelectric materials show promising potential for application in dynamic service conditions, such as wearable electronics.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Wenjie Huang, Xiaojian Tan, Jianfeng Cai, Shuai Zhuang, Chuandong Zhou, Jiehua Wu, Guoqiang Liu, Bo Liang, Jun Jiang
Summary: In this study, the thermoelectric performance of zone-melted n-type Bi2Te2.7Se0.3 material is significantly improved by co-doping with BiI3 and SnSb2Te4. BiI3, a non-toxic and non-hygroscopic electron dopant, effectively enhances the power factor and partially suppresses the bipolar effect of n-type Bi2Te2.7Se0.3. SnSb2Te4 doping introduces new scattering centers, resulting in a relatively low lattice thermal conductivity of 0.72 W m(-1) K-1 at 300 K. As a result, a maximum ZT value of 1.30 at 325 K and an average ZT value of 1.00 in the temperature range of 300-500 K are achieved in the Bi2Te2.Se-7(0.3) + 0.15 wt% BiI3 + 0.15 wt% SnSb2Te4 sample. This work provides a feasible approach to effectively improve the thermoelectric performance of n-type zone-melted Bi2Te3.
MATERIALS TODAY PHYSICS
(2023)
Article
Chemistry, Inorganic & Nuclear
Dabin Park, Minsu Kim, Jooheon Kim
Summary: In this study, tin(IV) sulfide (SnS2) and multiwalled carbon nanotube (MWCNT) composites were fabricated using a simple solution-mixing method in a hydrothermal reactor. The strong interface between SnS2 and MWCNTs in the composite material was found to be due to the formation of Sn-O and Sn-S bonds. Furthermore, the temperature-dependent thermoelectric properties showed that the SnS2-MWCNT hybrid composite with 3 wt % MWCNTs exhibited significantly enhanced power factor compared to pristine SnS2.
INORGANIC CHEMISTRY
(2022)
Article
Computer Science, Information Systems
Rahate Ahmed, Zeeshan, Muhammad Uzair Mehmood, Abdul Mannan, Jae Young Lee, Sang Hoon Lim, Wongee Chun
Summary: This study explores the integration of a thermoelectric generator in an earphone to enhance battery durability, with numerical analysis on different temperature conditions. The results provide insights into the performance of the thermoelectric generator in improving energy efficiency in earphones.
Article
Materials Science, Multidisciplinary
Shantanu Misra, Petr Levinsky, Anne Dauscher, Ghouti Medjahdi, Jiri Hejtmanek, Bernard Malaman, G. Jeffrey Snyder, Bertrand Lenoir, Christophe Candolfi
Summary: Chalcogenide semiconductors and semimetals, including tetragonal InTe, are promising candidates for thermoelectric applications due to their high thermoelectric performance near 800 K. An investigation of InTe single crystals grown over a wide temperature range revealed anisotropic transport coefficients and a semiconductor ground state despite previous suggestions of a semimetallic nature. The extremely low lattice thermal conductivity of InTe, combined with a relatively high power factor, resulted in a maximum dimensionless thermoelectric figure of merit of 0.61 at 780 K along the [110] direction, laying a solid foundation for future doping strategies in high-temperature thermoelectric applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Engineering, Electrical & Electronic
Xubiao Zhou, Shangsheng Li, Taichao Su, Meihua Hu, Qiang Hu, Bingke Qin
Summary: In addition to excellent thermoelectric performance in the medium temperature region, tellurium also has the advantages of simple composition and not easy to segregate, making it attractive in practical manufacturing and application. This study overcame the poor electrical transport properties of tellurium by using the in situ compositing method to form a dispersoid distribution of FeTe2 in the tellurium matrix, resulting in a high carrier concentration and enhanced power factor.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Physical
J. Andzane, A. Felsharuk, A. Sarakovskis, U. Malinovskis, E. Kauranens, M. Bechelany, K. A. Niherysh, I. V. Komissarov, D. Erts
Summary: This work presents a simple and cost-effective physical vapor deposition method for producing high-quality Bi2Se3 and Sb2Te3 ultrathin films on various substrates. The synthesized ultrathin films exhibit interesting thermoelectric properties at specific thicknesses, comparable to those grown by molecular beam epitaxy method. Performance of the best ultrathin films is tested in a prototype of a thermoelectric generator.
MATERIALS TODAY ENERGY
(2021)