Article
Chemistry, Physical
Edgars Butanovs, Alexei Kuzmin, Sergei Piskunov, Krisjanis Smits, Aleksandr Kalinko, Boris Polyakov
Summary: The study demonstrates the growth of high-quality few-layer ReS2 using pre-deposited rhenium oxide coating on different semiconductor material nanowires, creating novel core-shell heterostructures for energy applications involving photocatalytic and electrocatalytic hydrogen evolution.
APPLIED SURFACE SCIENCE
(2021)
Article
Multidisciplinary Sciences
Jesus Inarrea
Summary: This study theoretically examines the characteristics of microwave-induced magnetoresistance (MIRO) and photovoltage oscillations in MgZnO/ZnO heterostructures, and finds that they have the same physical origin.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Multidisciplinary
Mei-Hua Chen, Qian-Ying Lu, Yi-Ming Li, Ming-Ming Chu, Xue-Bo Cao
Summary: In this study, ZnO@ZIF-8 core-shell heterostructures were successfully synthesized, with ZIF-8 shell effectively increasing the specific surface area of ZnO nanorods. The synergistic effect between ZnO and ZIF-8 resulted in high photocatalytic activity, leading to rapid degradation of methylene blue under solar light irradiation. Additionally, the stability experiments demonstrated that the prepared ZnO@ZIF-8 nanocomposites retained over 95% of their photocatalytic activity after four cycles.
Article
Chemistry, Multidisciplinary
Yu Zhong, Fengming Wang, Chuangming Liang, Zeyi Guan, Bingshang Lu, Xin He, Weijia Yang
Summary: This work presents the fabrication of ZnO@MoS2 core-shell micro/nanomaterials and their photocatalytic performances. The ZnO@MoS2 core-shell micro/nanorods heterostructures were grown using a two-step hydrothermal method. Characterization techniques including X-ray diffraction, scanning-electron microscopy, Raman spectra, and UV-visible spectra were used to confirm the structure of the ZnO@MoS2 core-shell micro/nanorods. Methylene blue was employed to evaluate the photocatalytic performance, revealing that the shape of the MoS2 shell layer depended on the growth time. Additionally, it was found that the photocatalytic performance was significantly influenced by the growth time of the MoS2 nanosheets, with the ZnO@MoS2 core-shell heterostructures grown for 6 hours showing the highest efficiency.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Applied
Yijing Huang, Chong Luo, Qiaobao Zhang, Hehe Zhang, Ming-Sheng Wang
Summary: A novel high-performance electrode material NiCo-P@CoNiMo-P was reported in this study, which exhibited rich redox reactions and synergy effects, resulting in high specific capacity and good cycling stability. The hybrid supercapacitor using this electrode material showed high energy density and long cycle life.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Chemistry, Physical
Shikha Sakalley, Adhimoorthy Saravanan, Wei-Chun Cheng, Sheng-Chi Chen, Hui Sun, Bohr-Ran Huang, Ming-Han Liao
Summary: This study proposes a new p-n junction hybrid structure for self-powered ultraviolet photodetectors, which demonstrates enhanced photocurrent and photo-sensitivity. The device also exhibits fast photo response and recovery time, as well as significant repeatability for a long period of time.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Tobias Schreitmueller, Hyowon W. Jeong, Hamidreza Esmaielpour, Christopher E. Mead, Manfred Ramsteiner, Paul Schmiedeke, Andreas Thurn, Akhil Ajay, Sonja Matich, Markus Doeblinger, Lincoln J. Lauhon, Jonathan J. Finley, Gregor Koblmueller
Summary: This study evaluates the impact of impurity-induced point defects on the lasing performance of GaAs-AlGaAs based nanowire lasers. The findings demonstrate that these lasers have remarkably low lasing thresholds under Si doping and are highly tolerant to impurity defects. This discovery is significant for the application of nanowire lasers.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Multidisciplinary Sciences
Sara Marti-Sanchez, Marc Botifoll, Eitan Oksenberg, Christian Koch, Carla Borja, Maria Chiara Spadaro, Valerio Di Giulio, Quentin Ramasse, F. Javier Garcia de Abajo, Ernesto Joselevich, Jordi Arbiol
Summary: The curvature and morphology of the core affect the growth of the shell and induce electronic band modulations in ZnSe@ZnTe nanowires. The relaxation mechanisms of strain during epitaxial growth play a crucial role in determining the morphologies, crystal structures, and properties of core-shell nanostructures. The core morphology influences the formation of the shell involving plane bending and the creation of low-angle polar boundaries.
NATURE COMMUNICATIONS
(2022)
Article
Optics
Naheda H. A-Jarah, Ahmed S. Wasfi, S. M. Hamidi
Summary: This study aims to control the performance of random lasers by using magneto-plasmonic Fe3O4@Au and Au@Fe3O4 core shell nanoparticles as scatterer points. The results show that the laser efficiency of the samples is improved when an external magnetic field is applied.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Mohammad Rashidi, Tuomas Haggren, Zhicheng Su, Chennupati Jagadish, Sudha Mokkapati, Hark H. Tan
Summary: Random lasers in GaAs nanowires can lase in resonant and nonresonant modes, depending on whether the nanowires are randomly oriented or vertically aligned. Numerical simulations show that aligned nanowires increase scattering efficiency and favor resonant lasing. Suppressing resonant modes optically can be achieved by increasing the number of excited modes.
Article
Chemistry, Multidisciplinary
Hiromi Takahashi, Takao Yasui, Annop Klamchuen, Narathon Khemasiri, Tuksadon Wuthikhun, Piyawan Paisrisarn, Keiko Shinjo, Yotaro Kitano, Kosuke Aoki, Atsushi Natsume, Sakon Rahong, Yoshinobu Baba
Summary: RNA analytical platforms have gained attention for molecular analysis, but low RNA concentration in blood plasma samples hinders diagnostics. This study developed a ZnO/Al2O3 core-shell nanowire device to capture RNAs efficiently, showing promise for RNA-based extraction and detection. The biocompatibility of the nanowire with blood plasma samples, due to the protective Al2O3 shell, enhances its potential for molecular detection applications.
Article
Chemistry, Physical
Qiulong Li, Shuang Jing, Zhenzhong Yong, Qichong Zhang, Chenglong Liu, Kaiping Zhu, Yongbao Feng, Wenbin Gong, Yagang Yao
Summary: Fiber-shaped aqueous rechargeable Ni//Bi batteries have advantages such as low cost, flat discharge plateau, and no dendrite growth, but facing challenges in achieving high energy density, high power density, and safety simultaneously. By using hierarchical core-shell heterostructured electrodes, high-performance Ni//Bi batteries with extraordinary electrochemical performance can be developed.
ENERGY STORAGE MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Xuejing Wang, Yung-Chen Lin, Chia-Tse Tai, Seok Woo Lee, Tzu-Ming Lu, Sun Hae Ra Shin, Sadhvikas J. Addamane, Chris Sheehan, Jiun-Yun Li, Yerim Kim, Jinkyoung Yoo
Summary: In this study, we report the growth of a SiGe(P)/Si core/shell nanowire heterostructure using chemical vapor deposition and vapor-liquid-solid growth mechanism. The entire heterostructure behaves as a p-type semiconductor, with high-density carriers confined within the Si shell forming a tubular conduction channel. These findings are confirmed by calculations and the analysis of current-voltage characteristics. The microscopic analysis reveals a coherent epitaxial core/shell interface, with strain being released through the formation of dislocations along the axial direction of the heterostructure.
Article
Materials Science, Ceramics
Yu-Sheng Tsai, Jyun-Rong Chen, Chang-Hsueh Lee, Chih-Chen Kuo, Ya-Hsuan Lin, Chun-Chieh Wang, Yu-Cheng Chang, YewChung Sermon Wu, Hsiang Chen
Summary: In this study, different types of ZnO-based nanocomposites were fabricated and characterized. The etching of ZnO nanorods increased the surface area and defect concentration, while sulfurization of the ZnO/ZnS nanotubes reduced defects and improved surface roughness. The results indicate that ZnO and ZnO/ZnS nanotubes hold promise for sensing device applications.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Bochao Ma, Cong Zhang, Dongjie Jia, Qixian Zhao, Peipei Yang
Summary: In this study, ZnO@ZnS rods were prepared and a two-dimensional NiAl-LDH was grown on the surface of ZnO@ZnS, forming a stable interface structure. The ZnO@ZnS@NiAl-LDH composite exhibited significantly enhanced photocatalytic hydrogen production efficiency compared to ZnO and ZnO@ZnS. This study provides new insights for the research of ZnO-based materials as photocatalysts.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Nanoscience & Nanotechnology
Hong-Xiang An, Bao-Shi Qiao, Zhi-Hong Zhang, Zhen-Dong Lian, Zhipeng Wei, Xiao-Shuang Li, Qing-Guang Zeng, Bo Wang, Kar Wei Ng, Shuang-Peng Wang
Summary: High-quality RbCu2I3 microwires were successfully synthesized by a fast-cooling hot saturated solution method. The microwires exhibited an orthorhombic structure with a smooth surface. Optical measurements showed sharp ultraviolet absorption and ultralarge Stokes shift (300 nm) in photoluminescence of RbCu2I3 microwires. The photodetector based on a single RbCu2I3 microwire demonstrated excellent ultraviolet detection performance, with a specific detectivity of 5.0 x 10(9) Jones and a responsivity of 380 mA center dot W-1. The synthesis method and physical properties of RbCu2I3 can guide the future optoelectronic application of this new material.
Review
Chemistry, Physical
Pengfei Zhou, Haoyun Bai, Jinxian Feng, Di Liu, Lulu Qiao, Chunfa Liu, Shuangpeng Wang, Hui Pan
Summary: Alkaline water electrolysis (AWE) is the most established technology for producing green hydrogen, but its high cost limits its market penetration. Developing low-cost and efficient electrocatalysts that can be produced on an industrial scale is crucial for improving the market share. Bulk Fe-based alloys are promising candidates due to their low cost, abundance, stability, and suitability for mass production. This review provides a comprehensive summary of recent strategies to enhance the catalytic activity of bulk Fe-based alloys and discusses their prospects in industrial AWE.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Pengfei Zhou, Po Kee Wong, Pengda Niu, Mingpeng Chen, Chi Tat Kwok, Yuxin Tang, Ruidi Li, Shuangpeng Wang, Hui Pan
Summary: Alkaline water electrolysis is a prospective method for green hydrogen production, but its efficiency is low. The use of anodized high-entropy alloy AlCoCrFeNi as an efficient electrode shows ultra-high catalytic activity and stability, making it suitable for industrial water electrolysis for hydrogen production.
SCIENCE CHINA-MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Bao-Shi Qiao, Su-Yun Wang, Zhi-Hong Zhang, Zhen-Dong Lian, Zhi-Yao Zheng, Zhi-Peng Wei, Lin Li, Kar Wei Ng, Shuang-Peng Wang, Zhi-Bo Liu
Summary: Stacked 2D perovskites offer new possibilities for next generation photodetectors with enhanced features. This study demonstrates a bifunctional perovskite-based photovoltaic detector capable of demultiplexing two wavelengths. By utilizing the photosensitive and dielectric properties of 2D perovskite, the device exhibits different modes of operation. It shows continuous photoresponse under 405 nm and a transient spike response to longer wavelength visible light. This work provides a new strategy for multispectral detection and demultiplexing, which can improve data transfer rates and encrypted communications.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jun Yan, Qi Zheng, Shuang-Peng Wang, Yong-Zhi Tian, Wei-Qiang Gong, Feng Gao, Ji-Jun Qiu, Lin Li, Shu-Hui Yang, Mao-Sheng Cao
Summary: High-efficiency electromagnetic functional materials are essential for high-performance electromagnetic absorbers and devices in various fields. Finding and realizing these materials pose great challenges.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Di Liu, Lulu Qiao, Yuyun Chen, Pengfei Zhou, Jinxian Feng, Chon Chio Leong, Kar Wei Ng, Shengjie Peng, Shuangpeng Wang, Weng Fai Ip, Hui Pan
Summary: In this study, the incorporation of manganese into the Co3O4 lattice is found to achieve high activity and selectivity in electrocatalytic nitrate reduction reaction (e-NO3RR). The Mn-incorporated Co3O4 nanotubes exhibit remarkable e-NO3RR activity with a high ammonia yield rate of 35 mg h-1 cm-2 and excellent selectivity with a Faraday efficiency for ammonia up to 99.5% in neutral media, outperforming transition-metal oxides.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Review
Engineering, Environmental
Mingpeng Chen, Di Liu, Lulu Qiao, Pengfei Zhou, Jinxian Feng, Kar Wei Ng, Qingju Liu, Shuangpeng Wang, Hui Pan
Summary: The dynamical processes in electrochemical reactions in electrocatalysis are not well understood, which leads to wasted efforts in the design of electrocatalysts. However, in-situ/operando Raman technique can provide guidance for the design of electrocatalysts. This review summarizes recent advances of in-situ/operando Raman studies in different electrocatalytic systems and their applications in understanding the mechanisms.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Di Liu, Jia Zhao, Youchao Kong, Haoqiang Ai, Haoyun Bai, Chon Chio Leong, Kin Ho Lo, Shuangpeng Wang, Weng Fai Ip, Sen Lin, Hui Pan
Summary: This study investigates the production of C2 fuels through the electrocatalytic carbon monoxide reduction reaction (e-CORR) using dual-atom catalysts (DACs). Methanol, ethanol, ethylene, and acetate can be produced on DAC-Co and DAC-Cu, but with different preferences. The presence of solvent enhances adsorption and influences the protonation steps, thus affecting the performance and selectivity of e-CORR on DACs.
Article
Chemistry, Physical
Xin Zhang, Hui Bao, Cuili Chen, Xian-Gang Wu, Menglin Li, Wenyu Ji, Shuangpeng Wang, Haizheng Zhong
Summary: The operational stability of red emissive CdSe QLEDs was investigated at different applied voltages. The device luminance quickly decreases when loaded around the turn-on voltage, but recovers after unloading or slight heat treatment, known as the fatigue effects of operational QLED. The decrease in device luminance is attributed to the reduction of quantum yield in quantum dots.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Hui Bao, Cuili Chen, Yongqi Cao, Shuai Chang, Shuangpeng Wang, Haizheng Zhong
Summary: In this study, the charge accumulation and recombination in an operational QLED were quantitatively determined using time-resolved electroluminescence (TREL) spectroscopy. Time-resolved current (TRC) measurement was introduced and simulated using an equivalent circuit model, including a series resistance, a parallel resistance, and a capacitance. The key processes in a typical TREL spectra were modeled, and the stages of delay, rising, and decay were correlated to charge accumulations, charge injection and recombination, and charge release and recombination, respectively. The electroluminescence recombination rate was derived by fitting the rising stage curves in the TREL spectra, providing an intrinsic parameter of the emissive materials.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Chunrong Zhu, Chenjing Zhao, Fang Yuan, Yuren Li, Jingrui Li, Xiaoyun Liu, Lu Li, Hua Dong, Lihe Yan, Shuangpeng Wang, Bo Jiao, Zhaoxin Wu
Summary: This study introduces a subtly functionalized compound, methoxylated phenethylammonium bromide (y-MeO-PEABr), to improve the performance of sky-blue quasi-2D perovskite materials. The compound induces an upward shift of the energy levels and reduces the holes injection barrier, achieving better charge balance. The introduction of large y-MeO-PEA(+) cations effectively suppresses the formation of undesirable phases and improves energy transfer. The sky-blue quasi-2D PeLED based on 2-MeO-PEABr achieves a maximum external quantum efficiency of 10.85% at 486 nm. This work suggests a potential guide for designing high-performance blue quasi-2D PeLEDs using novel organic spacer cations.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Chenjing Zhao, Chunrong Zhu, Yue Yu, Wenhao Xue, Xiaoyun Liu, Fang Yuan, Jinfei Dai, Shuangpeng Wang, Bo Jiao, Zhaoxin Wu
Summary: By using 2-thiophenepropylamine bromide (ThPABr) as a multifunctional ligand in CsPbBr3 quantum dots, the film's photoluminescence quantum yield (PLQY) was increased to 83%, and the green LED exhibited significant performance improvement, including ultrahigh spectral stability, a maximum external quantum efficiency of 10.5%, and an extended operating lifetime that is 5 times longer than the reference sample.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Pengfei Zhou, Songbo Chen, Haoyun Bai, Chunfa Liu, Jinxian Feng, Di Liu, Lulu Qiao, Shuangpeng Wang, Hui Pan
Summary: In this study, a simple spontaneous corrosion and cyclic voltammetry (CV) activation method was used to fabricate Zn-incorporated NiFe layered double hydroxide (LDH) on commercial NiFe foam, which showed excellent oxygen evolution reaction (OER) performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Xingshuai Lv, Junxian Liu, Liangzhi Kou, Kar Wei Ng, Shuangpeng Wang, Thomas Frauenheim, Hui Pan
Summary: This study demonstrates that the use of three-dimensional confined dual site environment can significantly improve the turnover frequency for NH3 production, surpassing the limitations of energy-scaling relations and enabling a milder Haber-Bosch process.
Article
Chemistry, Physical
Sujuan Wang, Ligan Qi, Zhonghui Xia, Wenhai Wang, Dewu Yue, Shuangpeng Wang, Shichen Su
Summary: In this study, a polarization-sensitive detector based on a MoTe2/WTe2 heterojunction was presented. It achieved wide spectral detection and high polarization sensitivity, showing potential for developing high-performance optoelectronic devices.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Abu Talha Aqueel Ahmed, Sankar Sekar, Shubhangi S. Khadtare, Nurul Taufiqu Rochman, Bathula Chinna, Abu Saad Ansari
Summary: In this study, MnCo2S4 nanosheet catalyst was successfully synthesized and found to exhibit superior performance in hydrogen evolution. Compared to MnCo2S4, MnCo2S4 showed low overpotentials, moderate Tafel slope, and excellent sustainability. The outstanding performance can be attributed to the increased number of electrochemically active sites and enhanced electronic conductivity on the catalyst surface.
Article
Chemistry, Multidisciplinary
Victor V. Maltsev, Elena A. Volkova, Elizaveta V. Koporulina, Diana D. Mitina, Vladimir L. Kosorukov, Anna I. Jiliaeva, Daniil A. Naprasnikov, Konstantin N. Gorbachenya, Viktor E. Kisel
Summary: The phase relationships, crystal properties and luminescence kinetics of two complex systems were studied, including unit cell parameters, segregation coefficients of impurities, and lifetimes of energy levels.
Article
Chemistry, Multidisciplinary
Xiaoman Zhang, Wangwang Xu, W. J. Meng, Andrew C. Meng
Summary: This study successfully grew high-quality single crystal AlScN nanowires through ultra-high vacuum reactive sputtering technique and characterized their structure and properties. The nanowires exhibit significantly reduced mosaic spread and predominantly single ferroelectric domains, as well as a high piezoelectric constant.
Article
Chemistry, Multidisciplinary
Tom E. de Vries, Elias Vlieg, Rene de Gelder
Summary: Networks are important for describing relationships between people, roads between cities, reactions between chemicals, and other interactions. Bipartiteness, dividing the network into two groups, can facilitate the study of the network's structure. We have developed an algorithm that can find a near-optimal bipartisation within a reasonable time frame and used it to uncover the hidden structure of the CSD cocrystal network.
Article
Chemistry, Multidisciplinary
Chuchu Han, Jing Yang, Xin Zhang, Aisen Li, Jiang Peng
Summary: An elastic crystal based on a photo-reactive acylhydrazone derivative is reported, which exhibits reversible bending behavior under UV irradiation and heating. The crystal undergoes reversible E<->Z isomerization under light and heating conditions. The crystal demonstrates excellent elastic properties and the bending can be controlled to control the output direction of red light.
Article
Chemistry, Multidisciplinary
Lingfeng Zhang, Yu Wang, Yefeng Wang, Shuai Liu, Na Zhang, Mingmin Yang, Haixia Ma, Zhaoqi Guo
Summary: This study designs and synthesizes a series of high-energy salts compounds without heavy metal ions and azide groups. The molecular structures and stability of the compounds are confirmed through single-crystal X-ray diffraction and intermolecular interaction analysis. Furthermore, the thermal stability, energetic properties, and electrical initiation properties of the compounds are investigated, suggesting their potential as primary explosives.
