Article
Nanoscience & Nanotechnology
Yuchuan Pan, Xiaochi Liu, Junqiang Yang, Won Jong Yoo, Jian Sun
Summary: Two-dimensional transition-metal dichalcogenide (TMDC) based semiconducting van der Waals (vdW) heterostructures have unique and tunable properties, and controlling carrier type and band alignment is crucial for desired performances. In this study, carrier type and band alignment in a vertical MoTe2/MoS2 heterojunction are controlled via thickness engineering and surface charge transfer doping, leading to the realization of multifunctional diodes that are universal and applicable to emerging nanoelectronics based on 2D materials.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Maria Ramos, Francisco Marques-Moros, Dorye L. Esteras, Samuel Manas-Valero, Eudomar Henr iquez-Guerra, Marcos Gadea Jose, Jose J. Baldovi, Josep Canet-Ferrer, Eugenio Coronado, M. Reyes Calvo
Summary: This study investigates the photoluminescence properties of a stacked structure of single-layer MoS2 and van der Waals FePS3. The results demonstrate the outstanding performance of this heterostructure in terms of energy band alignment and charge transfer, providing potential for rational design of van der Waals heterostructures with advanced optoelectronic properties.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Boyu Wang, Jing Ning, Jincheng Zhang, Dong Wang, Yue Hao
Summary: The study investigated the effect of adjusting the spontaneous polarization direction of 2D GaN layer on the electronic properties of MoS2/GaN heterostructures, showing the potential to achieve conversion between type-I and type-II band alignments and enhance optical absorption.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Ankit Arora, Pramoda K. Nayak, Swastibrata Bhattacharyya, Nikhilesh Maity, Abhishek K. Singh, Ananth Krishnan, M. S. Ramachandra Rao
Summary: This study reports different interlayer excitonic states in an aligned MoSe2/MoS2 incommensurate van der Waals heterostructure. Photoluminescence measurements and first-principles simulations were used to reveal the orbital resolved electronic band structure and the presence of interlayer excitons. The emergence of two low-energy peaks in the PL spectrum suggests energy band hybridization in the heterostructure.
Review
Optics
Ying Jiang, Shula Chen, Weihao Zheng, Biyuan Zheng, Anlian Pan
Summary: Van der Waals heterostructures based on transition metal dichalcogenides possess type-II band alignment facilitating interlayer exciton formation, showing potential for applications in novel excitonic devices. Research has revealed superior transport characteristics of interlayer excitons, but a systematic overview of their formation, relaxation, transport, and applications is currently lacking.
LIGHT-SCIENCE & APPLICATIONS
(2021)
Article
Multidisciplinary Sciences
Philipp Merkl, Chaw-Keong Yong, Marlene Liebich, Isabella Hofmeister, Gunnar Berghaeuser, Ermin Malic, Rupert Huber
Summary: The authors demonstrate proximity-controlled strong-coupling between Coulomb correlations and lattice dynamics in neighboring van der Waals materials (WSe2 and a gypsum layer), creating electrically neutral hybrid exciton-phonon eigenmodes called excitonic Lyman polarons. This approach provides a promising new strategy to engineer novel ground states of two-dimensional systems by controlling the spatial wavefunction overlap of excitons and phonons.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Xudan Zhu, Junbo He, Rongjun Zhang, Chunxiao Cong, Yuxiang Zheng, Hao Zhang, Songyou Wang, Haibin Zhao, Meiping Zhu, Shanwen Zhang, Shaojuan Li, Liangyao Chen
Summary: The research demonstrates that inserting 1L-hBN can slightly block the interlayer electron transfer from the WS2 layer to the MoS2 layer, while weakening the interlayer coupling effect by releasing quantum confinement and reducing efficient dielectric screening. This results in a blueshift of exciton binding energies in WS2/hBN/MoS2 heterostructures, while the quasi-particle bandgap remains unchanged.
Article
Chemistry, Physical
Mingming Yang, Longlong Wang, Guofeng Hu, Xue Chen, Peng Lai Gong, Xin Cong, Yi Liu, Yuanbo Yang, Xiaoli Li, Xiaohui Zhao, Xuelu Liu
Summary: The study investigates the interlayer coupling in graphene/MoS2 vdW heterostructures through spectroscopy analysis, revealing the electron transfer and coupling mechanism between graphene and MoS2.
Article
Chemistry, Physical
X. R. Hou, S. D. Wang
Summary: In this study, the quasiparticle band structures and excitonic optical properties of SiC/MoSSe heterostructures were investigated using the GW + Bethe-Salpeter equation approach. The results show that all four stable structures of SiC/MoSSe heterostructures are favorable for producing high binding energy interlayer excitons. The modulation of optical dipole oscillator strength and radiative lifetimes is significant due to the different intrinsic dipole moments of MoSSe.
APPLIED SURFACE SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Yabing Shan, Xiaofei Yue, Jiajun Chen, Borgea G. M. Ekoya, Jinkun Han, Laigui Hu, Ran Liu, Zhi-Jun Qiu, Chunxiao Cong
Summary: This study investigates the strain engineering of a bilayer WS2/WSe2 vertical heterostructure on the nanoscale using Raman and photoluminescence spectroscopy. The results show that the original coupling strength of the heterostructure significantly affects the electronic band structure evolution and interlayer exciton behavior.
ACS APPLIED NANO MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Xin Wu, Xiyue Chen, Ruxue Yang, Jianbin Zhan, Yingzhi Ren, Kun Li
Summary: 2D vdW heterostructures have attracted research attention for their theoretical properties and application potentials. However, the synthesized heterostructures generally underperform due to weak interlayer coupling. This paper provides a state-of-the-art review of different techniques for performance modulation of vdW heterostructures, summarizing general synthesis methods and discussing mechanical-based, external fields-assisted, and particle beam irradiation-based methods. The applications and future prospects of tailored properties in vdW heterostructures are also reviewed.
Article
Physics, Multidisciplinary
Biao Cai, Yipeng Zhao, Degao Xu, Gang Ouyang
Summary: Zero-dimensional (0D)-one-dimensional (1D) mixed-dimensional van der Waals (MvdW) heterostructures have great potential in electronic/optoelectronic applications. A new analytic model has been developed to explain the charge-transfer mechanism and band alignment in PbS x Se1-x quantum dots (QDs)/MoS2-nanotube (NT) 0D-1D MvdW heterostructures. The results provide insights for designing multifunctional and high-performance 0D-1D MvdW heterostructure devices.
NEW JOURNAL OF PHYSICS
(2022)
Review
Chemistry, Multidisciplinary
Xiangdong Guo, Wei Lyu, Tinghan Chen, Yang Luo, Chenchen Wu, Bei Yang, Zhipei Sun, F. Javier Garcia de Abajo, Xiaoxia Yang, Qing Dai
Summary: 2D monolayers can be vertically stacked in van der Waals heterostructures to support a wide range of confined polaritons. This offers advantages in terms of controlling the constituent layers, stacking sequence, and twist angles. These heterostructures have extended the performance and functions of polaritons, and potential applications include nanophotonic integrated circuits.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xuan Ji, Zongqi Bai, Fang Luo, Mengjian Zhu, Chucai Guo, Zhihong Zhu, Shiqiao Qin
Summary: The research team successfully fabricated MoTe2-MoS2 van der Waals heterostructure photodetectors with great performance, operating without bias voltage, high photocurrent on/off ratio, and high photoresponsivity.
Review
Chemistry, Multidisciplinary
Xiankun Zhang, Yanzhe Zhang, Huihui Yu, Hang Zhao, Zhihong Cao, Zheng Zhang, Yue Zhang
Summary: As silicon-based electronic devices face challenges of material performance decrease and interface quality degradation, ultrathin 2D materials are considered as potential candidates in future electronics due to their atomically flat surfaces and excellent immunity to short-channel effects. By freely stacking and forming high-quality heterostructure interfaces, all-2D electronics based on 2D van der Waals (vdW) interfaces can exhibit more comprehensive functionality and better performance. However, improving the compatibility of 2D material devices with silicon-based industrial technology remains a critical challenge.
ADVANCED MATERIALS
(2023)
Article
Optics
Yuhang He, Yuxuan Chen, Chunhui Lu, Yifan Zhang, Zhen Tian, Xinlong Xu, Jianming Dai
Summary: Quantum interference (QuI) effect is a powerful method for generating and controlling ultrafast photocurrent in semiconductors. In this study, two-color pulsed light excitation was used to induce photocurrent in a bismuth sulfide (Bi2S3) film through the QuI effect. The photocurrent was monitored indirectly using a standard terahertz (THz) time-domain spectroscopic system. The results show that the asymmetric photon injection caused by QuI leads to coherent injection current and subsequent THz wave generation. The pump pulse energy dependence of the THz electric field suggests a third-order nonlinear optical process.
Article
Materials Science, Multidisciplinary
Mingwei Luo, Chunhui Lu, Yuqi Liu, Taotao Han, Yanqing Ge, Yixuan Zhou, Xinlong Xu
Summary: Heterostructures based on SnS2/Bi2X3 (X = Se, Te) van der Waals heterostructures grown through a combination of physical vapor deposition and chemical vapor deposition show improved photoelectric properties and responses. The successful design of type-I SnS2/Bi2Se3 and type-II SnS2/Bi2Te3 heterostructures greatly enhances the charge carrier transportation and interface dynamics, leading to a significant increase in photocurrent densities. Explained improvements in photoelectric performance include effective charge separation, enhanced charge-transfer efficiency and carrier density at the interface, and expanded light absorption range. Additionally, the vertical SnS2 enhances light trapping efficiency, with the type-I SnS2/Bi2Se3 heterostructure exhibiting higher photoelectric response compared to the type-II SnS2/Bi2Te3 heterostructure due to more efficient charge transportation at the type-I interface. These results suggest the potential development of high-performance photodetectors and other optoelectronic devices through suitable heterostructures.
SCIENCE CHINA-MATERIALS
(2022)
Article
Optics
Yong Yang, Changji Liu, Yuanyuan Huang, Yixuan Zhou, Xnlong Xu
Summary: This study achieved elliptically polarized second-harmonic generation in the terahertz region with a chiral metamaterial, deepening understanding of nonlinear optical effects and proposing chiral metamaterials as efficient and helicity-tunable nonlinear terahertz sources.
OPTICS COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Shi-Qi Li, Chuan He, Hongsheng Liu, Luneng Zhao, Xinlong Xu, Maodu Chen, Lu Wang, Jijun Zhao, Junfeng Gao
Summary: 2D materials, particularly Janus III chalcogenide monolayers, show great potential for nonlinear optical response, especially second harmonic generation (SHG). In this study, the SHG responses of nine Janus structures were systematically evaluated, and GaInTe2 exhibited extremely high out-of-plane SHG response, making it promising for ultraviolet NLO devices.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Xinyi Xue, Chunhui Lu, Mingwei Luo, Taotao Han, Yuqi Liu, Yanqing Ge, Wen Dong, Xinlong Xu
Summary: In this study, a SnSe2/ZnS heterostructure was constructed using a two-step physical vapor deposition method. The heterostructure exhibited high photoresponse and photoelectrocatalytic activity, which can be attributed to the high light utilization and efficient charge transport.
SCIENCE CHINA-MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Chunhui Lu, Wen Dong, Yongqiang Zou, Zeyun Wang, Jiayu Tan, Xing Bai, Nan Ma, Yanqing Ge, Qiyi Zhao, Xinlong Xu
Summary: To mimic natural photosynthesis, a Z-scheme heterostructure shows promise for efficient solar energy utilization. However, forming a direct Z-scheme heterostructure is challenging. In this study, a van der Waals heterostructure based on SnSe2 and SnSe was designed and synthesized to overcome this limitation. The SnSe2/SnSe heterostructure showed good photocatalytic and photoelectrochemical properties.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Physics, Multidisciplinary
Chunhui Lu, Yanqing Ge, Mingwei Luo, Xinlong Xu
Summary: In this study, ZrS2 and HfS2 films were synthesized on a large scale using chemical vapor deposition method. The nonlinear optical properties were characterized using Z-scan measurements with femtosecond pulses at 800 nm. The results showed that ZrS2 exhibited saturable absorption, while HfS2 exhibited reverse saturable absorption. Both ZrS2 and HfS2 showed better ultrafast nonlinear optical performance at 800 nm compared to MoS2 and graphene.
ANNALEN DER PHYSIK
(2023)
Article
Chemistry, Multidisciplinary
Chunhui Lu, Mingwei Luo, Wen Dong, Yanqing Ge, Taotao Han, Yuqi Liu, Xinyi Xue, Nan Ma, Yuanyuan Huang, Yixuan Zhou, Xinlong Xu
Summary: Large-scale cascade heterostructure based on bismuth chalcogenides is synthesized and optimized, exhibiting high-performance photodetectors with superior photoresponsivity and efficiencies. The cascade heterostructures also demonstrate efficient hydrogen production, surpassing pure bismuth chalcogenides and its type-II heterostructures. This innovative approach provides potential enhancements for future optoelectronic devices.
Article
Physics, Multidisciplinary
Hong Wang, Fangrong Hu, Xinlong Xu, Yumin Gong, Mingzhu Jiang, Longhui Zhang, Yingchang Zou
Summary: In this study, a THz dynamic large phase modulator based on graphene-metal hybrid metasurface was proposed, which can achieve dynamic tunable phase shift of more than 150 degrees. By modifying the structural parameters, a phase shift of 170 degrees can be achieved in a bandwidth of 50 GHz. The physical mechanism of the dynamic phase modulator was investigated, and the relationship between phase shift and Fermi level was established theoretically. This study paves a new way for realizing dynamic large phase modulation, which is crucial for THz broadband wireless communication, high-resolution imaging, and radar systems.
Article
Chemistry, Analytical
Yayan Xi, Yixuan Zhou, Xueqin Cao, Jing Wang, Zhen Lei, Chunhui Lu, Dan Wu, Mingjian Shi, Yuanyuan Huang, Xinlong Xu
Summary: The THz modulation performance of the Bi2Te3/Si heterostructure was investigated using THz time-domain spectroscopy under the control of continuous wave lasers at 532 nm and 405 nm. Broadband-sensitive modulation was observed within the frequency range of 0.8 to 2.4 THz. The modulation depth reached 80% under 532 nm laser illumination and 96% under 405 nm illumination. The enhanced modulation depth was attributed to the construction of a type-II Bi2Te3/Si heterostructure, which promoted photogenerated electron and hole separation and increased carrier density dramatically. This work demonstrates the potential of high-efficiency modulation using the Bi2Te3/Si heterostructure and suggests the suitability of UV-Visible control lasers for designing advanced all-optical THz modulators with micro-level sizes.
Article
Chemistry, Physical
Chuan He, Hongxiao Chao, Ruowei Wu, Shili Li, Qiang Lei, Xin Cao, Zhiyuan Cao, Lipeng Zhu, Huan Wang, Qiyi Zhao, Xinlong Xu
Summary: Giant optical second harmonic generation (SHG) can be achieved by designing a Janus structure for ReS2 and ReSe2. The Janus ReSSe monolayer structure breaks both in-plane and out-of-plane symmetry, resulting in larger second-order nonlinear coefficients. This opens up the potential for engineering novel nonlinear optical properties.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Yayan Xi, Yixuan Zhou, Zhen Lei, Xueqin Cao, Jing Wang, Yanqing Ge, Yuanyuan Huang, Lipeng Zhu, Xinlong Xu
Summary: In this study, the thickness-dependent nonlinear optical response of a direct band gap Bi2S3 material was investigated using terahertz emission spectroscopy. The results revealed the role of virtual and real carriers in controlling the nonlinear optical response under different excitation conditions. These findings suggest the potential for designing tunable on-chip THz sources and nonlinear optoelectronic devices based on thickness-dependent 2D materials.
Proceedings Paper
Engineering, Electrical & Electronic
Jing Wang, Yuanyuan Huang, Zhen Lei, Haonan Liu, Xinlong Xu
Summary: The tunable polarization state of elliptically polarized terahertz emitter has potential applications in various fields. By using 2D materials as the THz source, the polarized THz emission can be controlled arbitrarily.
2022 CROSS STRAIT RADIO SCIENCE & WIRELESS TECHNOLOGY CONFERENCE, CSRSWTC
(2022)
Proceedings Paper
Engineering, Electrical & Electronic
Zhen Lei, Yuanyuan Huang, Xinlong Xu
Summary: In this study, the terahertz radiation mechanism of p-InAs (100) material was investigated using a reflection-type terahertz emission spectroscopy system. Multiple physical mechanisms were found to contribute to terahertz emission in InAs.
2022 CROSS STRAIT RADIO SCIENCE & WIRELESS TECHNOLOGY CONFERENCE, CSRSWTC
(2022)
Article
Optics
Ge Yanqing, Liu Yuqi, Lu Chunhui, Luo Mingwei, Han Taotao, Zhou Yixuan, Xu Xinlong
Summary: Two-dimensional vertically aligned SnS2 layers show excellent nonlinear optical properties, making them promising for the design and manufacture of high-performance nonlinear photonic devices.
ACTA PHOTONICA SINICA
(2022)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)
