Article
Chemistry, Physical
Yiqun Du, Boya Zhang, Wenyang Zhang, Huixin Jin, Jingyu Qin, Jiaqi Wan, Jianxin Zhang, Guowen Chen
Summary: The construction of heterostructured Bi2Te3/Sb2Te3 nanoflakes enables rapid charge transfer and high capacity in aluminum batteries, improving energy storage performance.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
Qingtao Wang, Liqiu Huang, Yanxia Wu, Guofu Ma, Ziqiang Lei, Shufang Ren
Summary: In this study, a V-doped Sb2Te3 encapsulated Bi2Te3 core-shell electrocatalyst (Bi2Te3/V-x-Sb2Te3) was synthesized, which exhibited excellent hydrogen evolution reaction activity and high stability in both acidic and alkaline electrolytes. V doping adjusted the electronic structure of the catalyst, increased the active sites on the surface of the material, and promoted charge transfer and electron transport processes. V doping also adjusted the hydrophilicity of the material surface.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Jesse S. Ko, Jonathan M. Pierce, Priestly T. Shuler, Konstantinos Gerasopoulos
Summary: This study explores the use of metal organic chemical vapor deposition to prepare bismuth telluride and antimony telluride thin-film electrodes for lithium-ion batteries. Results show that antimony telluride outperforms bismuth telluride under similar deposition conditions due to the high performance of native antimony. However, post-cycling cracks indicate the need for a proper balance between film thickness and cycling.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Prabudhya Roy Chowdhury, Jingjing Shi, Tianli Feng, Xiulin Ruan
Summary: Bismuth telluride (Bi2Te3) and its alloys with antimony telluride (Sb2Te3) are known as the best thermoelectric materials at room temperature. Recent studies have shown high thermoelectric performance in Bi2Te3-Sb2Te3 nanostructures, but computational studies on phonon transport across these nanostructures are limited.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Hao Wu, Yuxin Sun, Yuxuan Wang, Haixu Qin, Jianbo Zhu, Yuke Zhu, Jinsuo Hu, Muchun Guo, Jing Liu, Ming Liu, Fengkai Guo, Qian Zhang, Zihang Liu, Wei Cai, Jiehe Sui
Summary: In this study, Sb1.85In0.15Te2.98 is chosen as the base material and Mn doping is used to enhance the thermoelectric performance. Mn substitution on the Sb site as acceptor doping modulates the carrier concentration and lattice thermal conductivity, leading to improved thermoelectric performance and mechanical properties of the material.
MATERIALS TODAY ENERGY
(2022)
Article
Energy & Fuels
Okmin Park, Kyu Hyoung Lee, Sang Jeong Park, Se Woong Lee, Sang-il Kim
Summary: This study reports the improved thermoelectric properties of singly and lightly Pb-doped Sb2Te3 polycrystalline alloys, with increased carrier transport properties and electrical conductivity, decreased Seebeck coefficient, and reduced lattice thermal conductivity. The maximum thermoelectric figure of merit achieved is 0.97, which is the highest reported value for singly-doped Sb2Te3-based alloys. The maximum energy conversion efficiency is calculated to be 9.0% for a temperature difference of 350 K, surpassing other singly or codoped Sb2Te3 alloys.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Kaiqi Li, Bin Liu, Jian Zhou, Stephen R. Elliott, Zhimei Sun
Summary: Phase transformations between cubic and rhombohedral states of phase-change chalcogenide materials have been observed and studied using ab initio molecular dynamics simulations. The forward transformation from cubic to rhombohedral phase can be spontaneously achieved through a two-step transformation involving shearing and contraction of building blocks. On the other hand, the backward transformation from rhombohedral to cubic phase requires high temperature heating and atomic diffusion. This study enhances the understanding of displacive transformations in phase-change materials and provides insights for developing phase-change memory devices based on Sb2Te3.
Article
Nanoscience & Nanotechnology
Abhishek Ghosh, Mujeeb Ahmad, Prashant Bisht, Bodh Raj Mehta
Summary: This study investigates the use of hot energy carrier filtering to improve thermoelectric properties in Sb2Te3 thin film samples containing size-selected gold nanoparticles. The results show that samples with the minimum variance in nanoparticle size exhibit higher Seebeck coefficient and power factor, with a slight decrease in electrical conductivity. Furthermore, techniques such as Kelvin probe force microscopy and conducting atomic force microscopy were utilized to understand interface properties and charge transport.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Hagen Bryja, Juergen W. Gerlach, Andrea Prager, Martin Ehrhardt, Bernd Rauschenbach, Andriy Lotnyk
Summary: This study explores memristive switching in vertical device structures based on layered Sb2Te3, with Ag as electrode metal achieving analog programmability, stable multilevel retention, and endurance performance. The research suggests potential applications for thin layered Sb2Te3 in neuromorphic computing and a scalable integration method into the existing Si platform.
Article
Chemistry, Physical
Qingtao Wang, Liqiu Huang, Huiping Liu, Yanxia Wu, Guofu Ma, Shufang Ren
Summary: By regulating the defects of Sb2Te3 through ion irradiation technology, the HER performance in acidic solution can be significantly improved, increasing active sites and conductivity, while accelerating hydrogen bubble desorption to reduce material damage.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Liqiu Huang, Qingtao Wang, Huiping Liu, Yanxia Wu, Yaoxia Yang, Guofu Ma, Ziqiang Lei, Shufang Ren
Summary: This study combines doping and defect engineering to improve the electrocatalytic ability of Sb2Te3 nano-sheets for hydrogen evolution reaction (HER). Vacancy defects and nitrogen dopants are introduced to increase the density of active sites and modify the electronic structure and hydrophilicity of the material surface. This work provides a strategy that can be extended to enhance the HER performance of other electrocatalysts.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
Kaiqi Li, Liyu Peng, Linggang Zhu, Jian Zhou, Zhimei Sun
Summary: Sb2Te3 is a promising phase-change material with fast reversible phase transition between amorphous and crystal phases. This study investigates the effects of intrinsic vacancies on the electronic property and phase transition of cubic Sb2Te3, providing insights into its metastability and rapid transition to the rhombohedral phase. Ab initio calculations reveal the key factors influencing the phase transition mechanism of Sb2Te3.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Multidisciplinary
Nitasha Komal, Muhammad Adil Mansoor, Muhammad Mazhar, Manzar Sohail, Zahida Malik, Muhammad Anis-ur-Rehman
Summary: Trivalent samarium (Sm)-and indium (In)-doped Sb2Te3 microstructures have been synthesized by the solvothermal method. The successful synthesis of undoped and doped Sb2Te3 microstructures was verified through various characterization techniques. The doping with (Sm, In) was found to enhance the electrical conductivity and reduce the thermal conductivity, showing promising electronic and thermoelectric properties.
Article
Engineering, Environmental
Shaokun Chong, Shuangyan Qiao, Lingling Yuan, Qianwen Zhou, Ting Li, Shihong Dong, Yikun Wang, Meng Ma, Wei Huang
Summary: Nanoplate-structured Sb2Te3 anchored on graphene and N-doped C (Sb2Te3@rGO@NC) is used as an anode material for potassium-ion batteries, exhibiting a dual encapsulation effect that can effectively restrain large volume expansion and enhance electronic transfer and ion adsorption. The resulting Sb2Te3@rGO@NC electrode delivers high charge capacity, rate capability, and long-term lifetime, demonstrating the potential of Sb2Te3-based anodes for potassium-ion batteries and providing insights into the K-ion storage mechanism.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Minsu Kim, Dabin Park, Jooheon Kim
Summary: In this study, carbon cloth was used as a flexible and conductive substrate, and Te nanowires were synthesized on it using a hydrothermal reaction. Sb2Te3 nanowires with longer and more uniform wire shape were then synthesized on the carbon cloth. Nb-doped Sb2Te3 nanowires exhibited the highest power factor. A flexible thermoelectric generator consisting of p-type Sb2Te3 nanowires and n-type Bi2Te3 nanowires showed high voltage and power output.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Physics, Condensed Matter
V. G. Orlov, G. S. Sergeev
SOLID STATE COMMUNICATIONS
(2017)
Article
Physics, Condensed Matter
V. G. Orlov, G. S. Sergeev
PHYSICA B-CONDENSED MATTER
(2018)
Article
Physics, Multidisciplinary
V. G. Orlov, G. S. Sergeev, Tetsuo Asaji, E. A. Kravchenko, Yu. F. Kargin
JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS
(2010)
Article
Physics, Nuclear
N. I. Alekseev, M. A. Kalugin, A. S. Kulakov, A. P. Novosel'tsev, G. S. Sergeev, D. A. Shkarovskiy, M. S. Yudkevich
PHYSICS OF ATOMIC NUCLEI
(2014)
Article
Physics, Condensed Matter
V. G. Orlov, G. S. Sergeev
PHYSICS OF THE SOLID STATE
(2013)
Article
Physics, Condensed Matter
V. G. Orlov, G. S. Sergeev
SOLID STATE COMMUNICATIONS
(2013)
Article
Materials Science, Multidisciplinary
V. G. Orlov, G. S. Sergeev, E. A. Kravchenko
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2019)
Article
Crystallography
V. G. Orlov, G. S. Sergeev
CRYSTALLOGRAPHY REPORTS
(2019)
Article
Nanoscience & Nanotechnology
V. G. Orlov, G. S. Sergeev
Summary: The electronic band structure and charge density distribution in trigonal Se and Te were theoretically studied to clarify the uncertainty regarding the types of chemical bonding in their crystals and to reconsider the role of valence s- and p-electrons in bonding. It was found that valence s- and p-electrons contribute significantly to the charge density of different types of bond critical points (BCPs), and a new computational approach was proposed.
Article
Physics, Multidisciplinary
E. A. Kravchenko, V. G. Orlov, G. S. Sergeev
JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS
(2020)
Proceedings Paper
Physics, Atomic, Molecular & Chemical
V. G. Orlov, E. A. Kravchenko, Tetsuo Asaji, G. S. Sergeev, Yu F. Kargin, O. S. Volkova, A. N. Vasil'ev
HYPERFINE INTERACTIONS
(2010)