Review
Materials Science, Multidisciplinary
Lulu An, Yuanlie Yu, Qiran Cai, Srikanth Mateti, Lu Hua Li, Ying Ian Chen
Summary: The urgent need for ultrahigh thermally conductive materials in the electronics industry has led to the exploration of hexagonal boron nitride nano-sheets (BNNSs) as an ideal choice. This article provides a comprehensive review of various fabrication methods for BNNSs, discusses the impact of BNNS properties on their thermally conductive properties, and explores the use of BNNSs as fillers in polymer-based materials. The aim of this review is to inspire new fabrication methods and improvements for BNNS/polymer composites and promote their practical application as thermal transport/dissipation materials.
PROGRESS IN MATERIALS SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Huibin Sun, Yunlei Jiang, Renjie Hua, Runhua Huang, Lei Shi, Yuan Dong, Suxia Liang, Jing Ni, Chi Zhang, Ruoyu Dong, Yingru Song
Summary: Graphene/BN heterostructures exhibit significant thermal rectification behavior, and the rectification ratio increases with the system length. This phenomenon is attributed to the mismatch of out-of-plane phonon vibration modes at the interface. This two-dimensional heterostructure shows promise for thermal management.
Article
Materials Science, Multidisciplinary
Barbara Canto, Martin Otto, Michael J. Powell, Vitaliy Babenko, Aileen O'Mahony, Harm C. M. Knoops, Ravi S. Sundaram, Stephan Hofmann, Max C. Lemme, Daniel Neumaier
Summary: This study demonstrated the successful deposition of 10 nm thin high quality Al2O3 on graphene surface using hBN protection layer, which effectively protects graphene from damage. Electrical characterization results showed that graphene does not degrade during plasma deposition of Al2O3.
ADVANCED MATERIALS TECHNOLOGIES
(2021)
Article
Materials Science, Ceramics
Tsung-Pin Tasi, Chien-Te Hsieh, Hsi-Chi Yang, Kuan-Chien Liu, Yun-Rui Huang, Yasser Ashraf Gandomi, Bikash Chandra Mallick
Summary: This study investigates the thermal resistance and fire retardancy of composite thin films composed of functionalized h-BN nanosheets deposited on stainless steel foils and fabrics. The addition of h-BN nanosheets improves the thermal shielding and fire retardancy of the construction coatings, serving as an efficient thermal insulating barrier. The design of h-BN-filled coatings paves the way for preparing environmentally friendly construction materials.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Environmental
Tingjie Chen, Zhiyong Liu, Xiaokang Hu, Gang Zhao, Zipeng Qin, John Tosin Aladejana, Xiangfang Peng, Yongqun Xie, Binghui Wu
Summary: Renewable and biodegradable plant fiber sponges (PFS) can be improved by modifying them with a highly thermo-conductive hexagonal boron nitride (h-BN) ink as a fire retardant. The modified PFS@h-BN show enhanced fire resistance, reduced smoke release, and improved mechanical performance, making them a promising material for safe and energy-efficient building applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Shaohua Chen, Chenyuan Zhu, Haoyang Gu, Li Wang, Jiajie Qi, Lixiang Zhong, Zhibin Zhang, Chunlei Yang, Guoshuai Shi, Siwen Zhao, Shuzhou Li, Kaihui Liu, Liming Zhang
Summary: The study successfully improved the selectivity of CH4 and achieved efficient electrochemical conversion by designing the interface of monolayer hexagonal boron nitride/copper. Experimental and theoretical calculations both demonstrated that the h-BN/Cu interfacial perimeters provide specific chelating sites to accelerate the conversion of CO.
Article
Materials Science, Multidisciplinary
Francesco Libbi, Nicola Bonini, Nicola Marzari
Summary: The study focuses on the importance of lattice dynamics and quadratic behavior of flexural acoustic modes in low-dimensional materials, and proposes a potential form that accurately reproduces phonon dispersions of graphene and carbon nanotubes. The potential can also estimate lattice thermal conductivity effectively.
Article
Materials Science, Multidisciplinary
Leonardo Garro Mena, Keith L. Hohn
Summary: The study investigates the catalytic activity of hexagonal boron nitride (hBN) in relation to hydroxylated sites, finding that some boric acid dehydrates on the hBN surface to produce borated hBN (hBNO). The research also demonstrates that the storage environment of samples can affect boric acid detection.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Hai Hu, Na Chen, Hanchao Teng, Renwen Yu, Yunpeng Qu, Jianzhe Sun, Mengfei Xue, Debo Hu, Bin Wu, Chi Li, Jianing Chen, Mengkun Liu, Zhipei Sun, Yunqi Liu, Peining Li, Shanhui Fan, F. Javier Garcia de Abajo, Qing Dai
Summary: In this study, we report a topological transition in the isofrequency dispersion contours of hybrid polaritons supported by a two-dimensional heterostructure consisting of graphene and alpha-phase molybdenum trioxide. By chemically changing the doping level of graphene, we observed a transformation of the topology of polariton isofrequency surfaces. Moreover, when the substrate was changed, the dispersion contour became dominated by flat profiles at the topological transition, thus supporting tunable diffractionless polariton propagation.
NATURE NANOTECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Xin Wu, Qiang Han
Summary: This study systematically investigated the phonon thermal transport across multilayer Gr/h-BN vdW heterostructures, revealing important findings on the structural configuration and external modulation at the Gr/h-BN interface. It uncovers the physical mechanisms underlying the changes in the interfacial thermal conductance (ITC) and suggests directions for its modulation.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Chengxin Jiang, Lingxiu Chen, Huishan Wang, Chen Chen, Xiujun Wang, Ziqiang Kong, Yibo Wang, Haomin Wang, Xiaoming Xie
Summary: Graphene on hexagonal boron nitride (h-BN) demonstrates excellent electrical properties, which are affected by its domain size and boundaries. Chemical vapor deposition (CVD) is a hopeful method for large graphene crystal growth, but increasing the coverage of monolayer graphene on h-BN remains a challenge due to weak control of nucleation and vertical growth. In this study, an auxiliary source strategy using silicon carbide and methyl methacrylate is adopted to enhance graphene nucleation density and achieve continuous graphene films on h-BN. By optimizing the growth temperature, vertical accumulation of graphitic materials can be suppressed. This work provides an effective approach for preparing continuous graphene film on h-BN and offers insights for the growth of high-quality graphene.
Article
Chemistry, Physical
Zhuoya Wang, Kaihang Zhang, Bing Zhang, Zheming Tong, Shulan Mao, Hao Bai, Yingying Lu
Summary: In this study, highly ordered and interconnected hexagonal boron nitride (h-BN) networks were introduced into paraffin wax (PW) to enhance its thermal conductivity for efficient heat dissipation and thermal management. The addition of 20 wt% h-BN significantly improved the thermal conductivity of PW, leading to ultrafast heat dissipation and leakage resistance in lithium-ion batteries (LIBs).
GREEN ENERGY & ENVIRONMENT
(2022)
Article
Physics, Applied
Zeyu Zhang, Zelong Peng, Peng Jiang, Yee Sin Ang, Chao Zhang, Zhongshui Ma
Summary: This study explores the performance of 2D materials and their heterostructures in energy conversion applications. The Thomson effect, an important process in thermoelectric devices, is found to improve the performance of thermionic refrigeration. However, the overall coefficient of performance is reduced by the Thomson effect.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Physical
E. Magnano, S. Nappini, I Pis, T. O. Mentes, F. Genuzio, A. Locatelli, F. Bondino
Summary: In this study, the growth of h-BNG thin films on platinum and their behavior in an oxygen environment were investigated using surface science techniques. By selectively etching graphene and repeating growth cycles, controllable h-BNG layers and vertically stacked h-BN/Gr heterostructures were successfully obtained.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Fanghong Yang, Xiaopeng Sun, Xing Zhang, Zhanhai Yao
Summary: The study shows that by reacting h-BN with sulfonyl chloride at room temperature, active groups can be generated, which can then be used to introduce PEG through a DielsAlder reaction. This improves the dispersibility and compatibility of h-BN in epoxy resin matrix, leading to enhanced thermal conductivity of the composites.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Haijiao Lu, Yi-Ming Zhao, Sandra Elizabeth Saji, Xinmao Yin, Ary Wibowo, Chi Sin Tang, Shibo Xi, Pengfei Cao, Mike Tebyetekerwa, Borui Liu, Marc Heggen, Rafal E. Dunin-Borkowski, Antonio Tricoli, Andrew T. S. Wee, Hieu T. Nguyen, Qing-Bo Yan, Zongyou Yin
Summary: In this study, a room-temperature strategy was developed to achieve efficient nitrogen photofixation by assembling two-dimensional CoO-Co3O4 composite materials on reduced graphene oxide. The study revealed that the photoreaction-induced cation oxidation could be reversely triggered by photo-reactivating Co3O4, thereby maintaining excellent catalytic activity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Liangliang Cai, Yuli Huang, Dingguan Wang, Wenjing Zhang, Zhuo Wang, Andrew T. S. Wee
Summary: Supramolecular self-assembly provides a pathway for nanopatterning and functionality. This study demonstrates the controllable fabrication of distorted Kagome lattice by using a conformationally flexible precursor on a cold Ag(111) substrate and adjusting the deposition rate.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Review
Physics, Multidisciplinary
Jie Chen, Xiangfan Xu, Jun Zhou, Baowen Li
Summary: Interfacial thermal resistance (ITR) is a major obstacle for heat transfer between materials, and understanding it is crucial for efficient heat dissipation in electronic and photonic devices, batteries, etc. This comprehensive review examines ITR, focusing on theoretical, computational, and experimental developments over the past 30 years. It covers fundamental theories, computational methods, and experimental tools for probing ITR, as well as challenges and opportunities in studying nanoscale and atomic scale interfaces.
REVIEWS OF MODERN PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Qiaoyan Hao, Huan Yi, Jidong Liu, Yi Wang, Jiewei Chen, Xinmao Yin, Chi Sin Tang, Dianyu Qi, Haibo Gan, Andrew T. S. Wee, Yang Chai, Wenjing Zhang
Summary: Alloying is an efficient strategy to tune the bandgap of two-dimensional materials. In this study, the authors successfully synthesized InSe1-xSx and InSe1-yTey alloys with single crystalline structure and epsilon-polymorph. Tuning the alloy compositions allowed for effective modulation of bandgap and optical properties. Field-effect transistors fabricated from these alloys exhibited high electron field-effect mobilities and current on/off ratios. Photodetectors made from InSe0.9S0.1 and InSe0.9Te0.1 showed maximum photoresponsivities, with InSe1-yTey alloys expanding the photoresponse range due to bandgap narrowing upon Te alloying. This work provides insights into the rational design of two-dimensional InSe materials with tunable bandgaps and demonstrates their potential applications in electronics and optoelectronics.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Lan Dong, Chengpeng Bao, Shiqian Hu, Yuanyuan Wang, Zihua Wu, Huaqing Xie, Xiangfan Xu
Summary: In this study, we characterized the thermal conduction of PEDOT:PSS nanofibers and found that the Lorenz number L increased significantly in the low-temperature region. This trend is believed to be due to the bipolar contribution of conducting polymers with low electrical conductivity and the increasing contribution of electronic component to thermal conductivity in low-temperature regions.
Article
Chemistry, Physical
Arramel, Francesco Maddalena, Muhammad Haris Mahyuddin, Xinmao Yin, Chi Sin Tang, Mohammad Kemal Agusta, Muhammad Fauzi Sahdan, Caozheng Diao, Cuong Dang, Muhammad Danang Birowosuto, Andrew Thye Shen Wee, Andrivo Rusydi
Summary: This study reports the electronic and optical variation of lead-free all-inorganic perovskites, which hold promising potentials for optoelectronics and spintronics applications.
MATERIALS TODAY ENERGY
(2022)
Review
Chemistry, Multidisciplinary
Qijie Liang, Ziling Chen, Qian Zhang, Andrew Thye Shen Wee
Summary: This review highlights the important developments in pentagonal transition metal dichalcogenides (TMDs) and their functionalities in neuromorphic computing, transistors, photodetection and catalysts. The strategies for modifying their physical and chemical properties, as well as device performance, are discussed. The forward-looking outlook of pentagonal 2D materials is also presented.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Multidisciplinary Sciences
Bohai Liu, Yu Zhou, Lan Dong, Qinghua Lu, Xiangfan Xu
Summary: Polymers are widely used in modern technology, but their thermal conductivity is often limited. In this study, a copolymerization strategy is introduced to significantly increase the thermal conductivity of polyimide, making it a potential candidate for thermal management. The copolymerized polyimide also shows thermal stability after annealing, indicating its potential in future synthesis of interfacial thermal materials.
Article
Physics, Multidisciplinary
Yusen Yang, Qian Tao, Yuqiang Fang, Guoxiong Tang, Chao Yao, Xiaoxian Yan, Chenxi Jiang, Xiangfan Xu, Fuqiang Huang, Wenxin Ding, Yu Wang, Zhiqiang Mao, Hui Xing, Zhu-An Xu
Summary: A strange-metal state, which appears in many strongly correlated materials, has been studied to understand its nature and properties. In this study, a large Nernst response is observed in a two-dimensional superconductor 2M-WS2, suggesting a change in carrier entropy when entering the strange-metal state. This anomalous Nernst response is further confirmed in other iconic strange metals, indicating its universality and providing experimental constraints on the mechanism of strange metals.
Article
Multidisciplinary Sciences
Jian Gou, Hua Bai, Xuanlin Zhang, Yu Li Huang, Sisheng Duan, A. Ariando, Shengyuan A. Yang, Lan Chen, Yunhao Lu, Andrew Thye Shen Wee
Summary: Conventional ferroelectric compounds require at least two constituent ions for polarization switching. However, in a black phosphorus-like bismuth layer, a single-element ferroelectric state is observed, with concurrent ordered charge transfer and regular atom distortion between sublattices. The Bi atoms in the black phosphorous-like Bi monolayer exhibit a weak and anisotropic sp orbital hybridization, leading to the inversion-symmetry-broken buckled structure and charge redistribution. The in-plane electric polarization is induced in the Bi monolayer, which is experimentally visualized through scanning probe microscopy.
Letter
Multidisciplinary Sciences
T. J. Whitcher, A. D. Fauzi, C. Diao, X. Chi, A. Syahroni, T. C. Asmara, M. B. H. Breese, A. H. Castro Neto, A. T. S. Wee, M. A. Majidi, A. Rusydi
NATURE COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Jinxin Zhong, Hong Sun, Yang Pan, Zhiguo Wang, Xiangfan Xu, Lifa Zhang, Jun Zhou
Summary: A nonzero mean value of phonon angular momentum (PAM) can be generated in chiral materials with a temperature gradient. By using the Kubo formula, we investigated the contributions of both intraband and interband terms of PAM to the mean PAM. Interestingly, the interband term was found to be equally important as the intraband term, indicating the strong influence of quantum transition between different phonon branches induced by a temperature gradient on local atomic rotation. This discovery introduces an alternative mechanism for generating PAM and phonon magnetic moments.
Article
Chemistry, Multidisciplinary
Alfian Noviyanto, Ratih Amalia, Pramitha Yuniar Diah Maulida, Mudzakkir Dioktyanto, Bagas Haqi Arrosyid, Didik Aryanto, Lei Zhang, Andrew T. S. Wee, Arramel
Summary: In this study, manganese oxide nanoparticles were successfully synthesized using the hydrothermal method with different temperatures and NaOH concentrations. The results showed that temperature and NaOH concentration played important roles in determining the particle size, crystallinity, and oxygen vacancy occupancy of the manganese oxide nanoparticles.
Article
Nanoscience & Nanotechnology
Dingguan Wang, Zishen Wang, Shaofei Wu, Arramel, Xinmao Yin, Chi Sin Tang, Yuan Ping Feng, Jishan Wu, Andrew T. S. Wee
Summary: In this study, we achieved two-dimensional supramolecular spin arrays on surfaces through halogen-bonding molecular self-assembly. By controlling molecular coverage and annealing temperature, three distinct types of halogen bonds were formed to tailor the supramolecular spin arrays. Our work suggests that supramolecular self-assembly can be a promising method to engineer two-dimensional molecular spin arrays.
ACS NANOSCIENCE AU
(2022)
Article
Chemistry, Multidisciplinary
Lei Zhang, Tong Yang, Arramel, Yuan Ping Feng, Andrew T. S. Wee, Zhuo Wang
Summary: This study systematically investigates the layer-dependent electronic structure of 2D PtTe2 using various experimental and theoretical methods. The research finds that high-quality ultrathin PtTe2 films can be obtained with appropriate substrate and growth temperature choices, which is important for device applications.
