Article
Physics, Multidisciplinary
Ersin Kantar, Mehmet Ertas
Summary: In this study, the thermal and hysteresis behaviors of triangular nanowire with core/shell structure were investigated in a mixed spins-(3/2, 5/2) Ising model with a crystal-field interaction. Different compensation behaviors and multiple hysteresis loops were found depending on the values of parameters.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Chemistry, Physical
Jizhuang He, Jiahua Li, Yunfei He, Yin Ren, Sisi Li, Shulin Xing, Rongli Gao, Wei Cai, Chunlin Fu
Summary: A transmission layer/ferroelectric layer/transmission layer shell-core nanowire array was constructed to improve the photoelectric conversion efficiency of bismuth ferrite (BFO). The device showed a photoelectric conversion efficiency of 0.93%, which is significantly higher than previous reports on BFO-based photovoltaic devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Cong Song, Mengsi Zhan, Zhijun Ouyang, Yuge Yao, Yue Gao, Mingwu Shen, Xiangyang Shi
Summary: In this study, a programmed strategy was developed to activate the tumoral immune microenvironment and promote the maturation of dendritic cells. This was achieved through the use of two modules of core-shell tecto dendrimer-based nanomedicines, which enhanced the chemoimmunotherapy of an orthotopic breast tumor model.
JOURNAL OF CONTROLLED RELEASE
(2023)
Article
Chemistry, Multidisciplinary
Sandip Aryal, Durga Paudyal, Ranjit Pati
Summary: Incorporating features of antiferromagnet into a semiconductor core-shell nanowire opens up new possibilities in spintronics. Quantum mechanical prediction shows that Cr-doped nanowire behaves as an antiferromagnetic semiconductor with longer spin coherence length and high ON/OFF current ratio switching feature. This material presents potential for applications in spin-dependent quantum transport.
Article
Chemistry, Multidisciplinary
Mohamed El-Yadri, Jawad El Hamdaoui, Noreddine Aghoutane, Laura M. Perez, Sotirios Baskoutas, David Laroze, Pablo Diaz, El Mustapha Feddi
Summary: This study investigates the impact of quantum size and an external magnetic field on the optoelectronic properties of a cylindrical AlxGa1-xAs/GaAs-based core/shell nanowire. The Hamiltonian of an interacting electron-donor impurity system was described using the one-band effective mass model and two numerical methods were employed to calculate the ground state energies: the variational and finite element methods. The system's cylindrical symmetry revealed transcendental equations due to the finite confinement barrier between the core and the shell, leading to the concept of the threshold core radius. The results demonstrate that the optoelectronic properties strongly rely on core/shell sizes and the external magnetic field strength, with the electron's maximum probability of occurrence depending on the threshold core radius value. This threshold radius separates two regions with different physical behaviors, while the applied magnetic field acts as an additional confinement.
Article
Optics
Majid Zamani, Zoheir Kordrostami, Samaneh Hamedi
Summary: In this study, an efficient nanowire array was designed to enhance light trapping in nanostructured photovoltaic devices. The proposed solar cell with inclined core-shell nanowires showed improved absorption, short circuit current, and efficiency compared to other structures. Optimization of core-shell material, inclination angle, and core diameter led to significantly increased current density, demonstrating the potential for improved performance in various nanowire-based solar cell designs.
Article
Multidisciplinary Sciences
Qiubo Zhang, Xinxing Peng, Yifan Nie, Qi Zheng, Junyi Shangguan, Chao Zhu, Karen C. Bustillo, Peter Ercius, Linwang Wang, David T. Limmer, Haimei Zheng
Summary: The atomic ripening pathway for Cd-CdCl2 core-shell nanoparticles is mediated by crack defects, as revealed by liquid cell transmission electron microscopy.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Eduard Monaico, Vadim Morari, Veaceslav V. Ursaki, Kornelius Nielsch, Ion M. Tiginyanu
Summary: This study reports the preparation of GaAs nanowire templates using cost-effective electrochemical etching of (001) and (111)B GaAs substrates, and the fabrication of core-shell GaAs-Fe nanowire arrays by galvanostatic Fe deposition. The fabricated arrays were characterized and their magnetic properties were analyzed.
Article
Medicine, Research & Experimental
Naihan Huang, Along Qian, Yiming Zou, Miaoli Lin, Weilun Pan, Ming Chen, Wei Meng, Wenhua Zhang, Jinxiang Chen
Summary: Research aims to improve the immune response of radiation therapy (RT) by reshaping the immunosuppressive tumor microenvironment. A nanocomposite called UMP, constructed with core-shell UiO@Mn3O4, is used to reshape the TME and enhance immunogenic RT, inducing strong immunogenic cell death. This study is significant for TME reshaping and the development of cancer nanomedicine.
Article
Chemistry, Multidisciplinary
Naihan Huang, Xiao-Yan Tang, Wei Meng, Ye-Hua Lai, Xuan Zhou, Xue-Zhao Yu, Wen-Hua Zhang, Jin-Xiang Chen
Summary: By integrating MnS-reprogrammed tumor microenvironment with Hf-based UiO-sensitized radiation therapy, a core-shell nanosensitizer UiO@MnS (UM) was constructed to enhance the efficacy of radiation therapy and induce immune response.
Article
Chemistry, Inorganic & Nuclear
Danhui Zhang, Ruquan Liang, Houbo Yang, Yuanmei Song, Jianhui Shi, Dengbo Zhang, Zhongkui Liu, Anmin Liu
Summary: This paper demonstrates the process of combining polyacetylene with silver nanowire to form core-shell nanoclusters using molecular dynamic simulations. The influence of silver nanowire thickness on nanocluster formation and the significant role of van der Waals force in the fabrication process are observed. Factors affecting the process and other metal nanoclusters induced by polyacetylene are also discussed in detail.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Sourav Kumar Kajli, Debdutta Ray, Somnath C. Roy
Summary: One-dimensional nanostructures such as nanowires exhibit enhanced photoresponse compared to bulk materials due to unidirectional transport reducing recombination and scattering of charge carriers. CuO and Cu2O are promising transition metal oxides for efficient UV and visible light detection, forming type-II heterojunction for charge separation. Core-shell CuO/Cu2O nanowires show superior performance in terms of responsivity and detectivity, attributed to the Ohmic junction at Pd-Cu2O interface and type II heterojunction at CuO/Cu2O interface.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Biswajit Pal, Kalyan Jyoti Sarkar, Sourav Das, P. Banerji
Summary: The study investigated the photodetection properties of a core-shell nanowire heterojunction device based on p-Si/n-InP, showing promising performance in the NIR spectral region.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Aadil Waseem, Muhammad Ali Johar, Mostafa Afifi Hassan, Indrajit Bagal, Jun-Seok Ha, June Key Lee, Sang-Wan Ryu
Summary: Flexible and stable piezoelectric energy harvesters were successfully fabricated using polydimethylsiloxane-embedded m-axis GaN/Al2O3 core-shell nanowires transferred to indium-deposited flexible substrates. Optimizing the piezoelectric performance by controlling the Al2O3 shell thickness showed that a 6 nm thickness exhibited the maximum performance, with performance decreasing when the thickness was increased or decreased. The PEHs were effective in harvesting mechanical energy, even from static strain, and also demonstrated energy supply capabilities for operating a light emitting diode.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Edgars Butanovs, Kevon Kadiwala, Aleksejs Gopejenko, Dmitry Bocharov, Sergei Piskunov, Boris Polyakov
Summary: In this study, GaNMoS2 and GaN-WS2 core-shell nanowires were successfully synthesized using two different methods. The experimental results were in agreement with theoretical calculations, demonstrating the potential of these core-shell heterostructures as photocatalysts.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Junho Park, Taehyun Kim, Gyu Won Kim, Vladimir Bessonov, Andrey Telegin, Ilia G. Iliushin, Anastasiia A. Pervishko, Dmitry Yudin, Aleksei Yu Samardak, Alexey Ognev, Alexander S. Samardak, Jiung Cho, Young Keun Kim
Summary: The Dzyaloshinskii-Moriya interaction (DMI) is enhanced in Pt/Co heterostructures with compositionally graded Pt-Co alloy intralayers, leading to complex behavior attributed to both interfacial and bulk-like contributions.
Article
Chemistry, Physical
Taehyun Kim, Quynh Anh T. Nguyen, Gyu Won Kim, Min Hyeok Lee, Seok In Yoon, Sonny H. Rhim, Young Keun Kim
Summary: Spin-orbit torque (SOT) based magnetization switching is a current area of interest, and we propose a W-Si alloy as a potential spin current-generating layer in nonvolatile embedded memory and logic devices. Experimental results confirm the required properties of the proposed W-Si/CoFeB heterostructures.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Hammad Younes, Mariam Mansoori, Prerna Chaturvedi, Ru Li, Safieh Almahmoud, Sang-Eui Lee, Thomas Myeongseok Koo, Young Keun Kim, Daniel Choi
Summary: Designing and fabricating an effective, affordable, and lightweight material to solve the electromagnetic interference (EMI) problem is crucial due to the rapid growth of electronic devices and wireless telecommunication technology. This study synthesized manganese ferrite nanoparticles and mixed them with carbon nanotubes to create a new EMI shielding mat, which showed superior shielding performance in the X-band.
JOURNAL OF NANOPARTICLE RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Jeong Ook Soh, Bum Chul Park, Hyeon Su Park, Myeong Soo Kim, Hong En Fu, Young Keun Kim, Ju Hun Lee
Summary: A new nucleic acid amplification method called nanoparticle-based surface localized amplification (nSLAM) is combined with electrochemical detection (ECD) to develop a nucleic acid biosensor platform that overcomes limitations in other methods and exhibits high sensitivity for emerging pathogens like the coronavirus.
Article
Energy & Fuels
Anil Ronte, Phadindra Wagle, Ghader Mahmodi, Mounika Chevula, Shailesh Dangwal, Mohammad Reza Saeb, Jong Suk Lee, David N. Mcllroy, Seok-Jhin Kim
Summary: A thin ZIF-8 membrane was successfully synthesized using an effective vapor-phase technique, which involved converting a ZnO layer to ZIF-8. This membrane exhibited high selectivity and permeability for propylene/propane separation.
Article
Environmental Sciences
Yun-Sik Lee, Bum Chul Park, Dae Beom Lee, Hyun-Gi Min, Min-Suk Kim, Sung-Chul Kim, Sung Ok Won, June Wee, Eunji Chae, Cheolho Sim, Youngeun Kim, Jeong-Gyu Kim, Young Keun Kim, Kijong Cho
Summary: We developed a method to enhance the efficiency of arsenic (As) capture and improve ecosystem health by reorganizing the structure of iron oxyhydroxide. The reorganized iron oxyhydroxide immobilized As species through a synergistic mechanism, leading to the rehabilitation of As-contaminated soils. This study provides a foundation for crystallization-based material engineering and advances our understanding of soil-nanoparticle-contaminant interactions.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Engineering, Chemical
Jeremy May, Dipak Koirala, Forrest Dalbec, Joshua Russell, Hui Xiong, Elena Echeverria, David N. McIlroy, I. Francis Cheng
Summary: Electrochemical oxidation of GUITAR creates a superhydrophilic surface with heightened resistance to fouling, making it suitable for a variety of applications.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Jungbae Yoon, Jun Hwan Moon, Jugyeong Chung, Yu Jin Kim, Kihwan Kim, Hee Seong Kang, Yoo Sang Jeon, Eunsoo Oh, Sun Hwa Lee, Kihoon Han, Dongmin Lee, Chul-Ho Lee, Young Keun Kim, Donghun Lee
Summary: A barcode magnetic nanowire is a multi-layered magnetic structure with more than one segment type. It has attracted significant attention in bioengineering due to selective functionalization and novel interactions between layers. However, analyzing the magnetic properties of individual nanowires remains challenging. This study investigates the characterization of a single magnetic nanowire based on magnetic images obtained via wide-field quantum microscopy, allowing for extraction of critical magnetic properties.
Article
Nanoscience & Nanotechnology
Jeong Kyu Lee, Jiyoung Lee, Seok In Yoon, Min Hyeok Lee, Jin Seo Lee, Yunho Jang, Dae-Yun Kim, Sug-Bong Choe, Jongsun Park, Young Keun Kim
Summary: This study proposes an optical verification method for spin-orbit torque (SOT) physically unclonable functions (PUFs). The SOT devices are resistant to degradation and thermal changes, and can generate secret keys with high reproducibility. A simple optical method based on the magneto-optical Kerr effect is introduced to verify the authenticity of the proposed SOT PUF device. Furthermore, the feasibility of using a W/CoFeB/MgO/Ta structure as a PUF is assessed, with the 24-bit device showing a reliability of 97.8 +/- 1.03%.
ADVANCED ELECTRONIC MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Jun Hwan Moon, Eunjin Jeong, Seunghyun Kim, Taesoon Kim, Eunsoo Oh, Keun Lee, Hauk Han, Young Keun Kim
Summary: Integrated circuits (ICs) face challenges in delivering anticipated performance improvements while increasing the cost and complexity with each generation. The demand for advanced interconnect metallization rises with continuous IC scaling, leading to the exploration of new materials for routing nanoscale interconnects. This review discusses the challenges in interconnect structures as physical dimensions shrink and explores problem-solving options based on material properties, introducing new materials for barriers and conductors. The comprehensive discussion aims to bridge the gap between academia and industry in implementing materials for advanced interconnect technology.
Article
Materials Science, Multidisciplinary
Matthew Phillips, Muh-Jang Chen, Md Didarul Islam, Jong Ryu, Mohammed Zikry
Summary: The manufacturing of thin films with structured surfaces by large-scale rolling has advantages over other techniques, but understanding the effects of processing conditions on microstructure is lacking. This study develops a computational model to predict and control the morphology of CNT-PDMS thin films. The effects of rheological properties and roller gap on ribbing behavior are investigated, and a ribbing instability prediction model is formulated. The system is modeled using a nonlinear dynamic finite element method.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ravi Teja Addanki Tirumala, Nishan Khatri, Sundaram Bhardwaj Ramakrishnan, Farshid Mohammadparast, Mohd Tauhid Khan, Susheng Tan, Phadindra Wagle, Sharad Puri, David N. McIlroy, Ali Kaan Kalkan, Marimuthu Andiappan
Summary: Controlling and tuning activity and selectivity in catalysis are crucial for energy-efficient and environmentally friendly catalytic processes. Plasmonic and dielectric Mie resonance-mediated photocatalyses have shown promise in this regard, although reports on tunable product selectivity are limited. Distinguishing the desired Mie resonance-mediated effects from the undesired light-induced heating effect is a major challenge.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Geunwoo Kim, Soogil Lee, Sanghwa Lee, Byonggwon Song, Byung-Kyu Lee, Duhyun Lee, Jin Seo Lee, Min Hyeok Lee, Young Keun Kim, Byong-Guk Park
Summary: This study investigates the effects of annealing on the tunnel magnetoresistance ratio in CoFeB/MgO/CoFeB-based magnetic tunnel junctions with different capping layers and correlates them with microstructural changes. The findings indicate that the proper selection of a capping layer can increase the annealing temperature of MTJs, making it compatible with the complementary metal-oxide-semiconductor backend process.
Article
Nanoscience & Nanotechnology
Min Hyeok Lee, Seok-Jong Kim, Seok In Yoon, Jeong Kyu Lee, Han Seok Ko, Gyusang Kim, Seokhie Hong, Kyung-Jin Lee, Young Keun Kim
Summary: This study examines the role of the field-like torque (FLT) in spin-orbit torque (SOT) devices and its impact on the switching process. By manipulating the ratio of FLT to damping-like torque (DLT), the study demonstrates the potential of this material structure as a true random number generator (TRNG).
Article
Engineering, Manufacturing
Md Didarul Islam, Himendra Perera, Sekkappan Chockalingam, Matthew Phillips, Muh-Jang Chen, Yuxuan Liu, Saad Khan, Yong Zhu, Mohammed Zikry, Jong Eun Ryu
Summary: This study presents a manufacturing technique for linear periodic microstructures and highlights their significance in various applications. The controlled ribbing defects in forward roll coating allow the fabrication of tailored microstructures, and the resulting surfaces have potential applications in drag reduction, superhydrophobicity, self-cleaning, and anti-biofouling surfaces.
MANUFACTURING LETTERS
(2022)
