Article
Materials Science, Multidisciplinary
Yaxiong Yang, Shugang Liu, Zhe Dong, Zhenguo Huang, Cheng Lu, Yongjun Wu, Mingxia Gao, Yongfeng Liu, Hongge Pan
Summary: This study demonstrates an effective hierarchical conformal coating strategy for high-performance microsized Si anodes, which enhances mechanical properties, promotes ionic diffusion, stabilizes electrode/electrolyte interfaces, and increases electronic conductivity. The optimized structure achieves high reversible capacity, cycling stability, and rate capability.
APPLIED MATERIALS TODAY
(2022)
Article
Chemistry, Physical
Xi Chen, Laura C. Loaiza, Laure Monconduit, Vincent Seznec
Summary: The 2D Si-Ge alloy materials, known as siliganes, have been developed for use as anodes in Li-ion batteries, offering reasonable cost and promising electrochemical performance. Among them, the siligane_Si0.9Ge0.1 showed the best performance, with a reversible capacity of 1325 mA h g-1, high capacity retention, and coulombic efficiency at a current density of 0.05 A g-1 after 10 cycles.
ACS APPLIED ENERGY MATERIALS
(2021)
Review
Chemistry, Physical
Lijing Xie, Cheng Tang, Zhihong Bi, Mingxin Song, Yafeng Fan, Chong Yan, Xiaoming Li, Fangyuan Su, Qiang Zhang, Chengmeng Chen
Summary: Hard carbons, with their enriched microcrystalline structure, have attracted attention as a promising anode material for high-energy LIBs, but face challenges such as low initial efficiency and capacity issues. Current research efforts are focused on addressing these challenges to enable practical application in next-generation batteries.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Ji Hoon Kim, Jongmin Kim, Wooree Jang, Junwon Lee, Cheol-Min Yang
Summary: This study demonstrated the successful fabrication of a high-performance Si-based composite Li-ion battery anode using a simple and scalable process. The composite exhibited high electrochemical performance and cycling stability, emphasizing the importance of effective design of electrically conductive three-dimensional frameworks in Si-based composite anodes.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Zhihua Ma, Liujie Wang, Dandan Wang, Ruohan Huang, Cunjing Wang, Gairong Chen, Changqing Miao, Yingjie Peng, Aoqi Li, Yu Miao
Summary: In this study, a unique Si@graphene layer structure (p-Si@GN) was fabricated to improve the cycling performance of silicon anodes. The layered p-Si@GN composite exhibited high Li+ storage capacity, outstanding electron conductivity, and excellent structural stability.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yin Zhang, Yangqin Cheng, Jinhua Song, Yanjun Zhang, Qian Shi, Jingxiao Wang, Fanghua Tian, Shuang Yuan, Zhou Su, Chao Zhou, Yang Wang, Sen Yang
Summary: The paper presents a cost-effective method for synthesizing Si and graphene composites through ball-milling, demonstrating their outstanding performance in lithium-ion batteries and potential for large-scale production in the future.
Article
Chemistry, Physical
Naga Venkateswara Rao Nulakani, T. J. Dhilip Kumar
Summary: In this study, graphene and borophene monolayers were successfully stitched together to form lateral heterostructures using experimental synthesis. The resulting heterostructures showed dynamic and thermal stability, as well as anisotropic mechanical properties. Electronic structure calculations revealed their classification as either semimetals or metals, and their conductivity depended on the width of the graphene and borophene chains. Additionally, these heterostructures exhibited unique electronic features, such as massless Dirac fermions and anisotropic high hole and electron mobilities. Moreover, their potential application as anode materials in lithium-ion rechargeable batteries was investigated, showing promising results with optimal adsorption energies, low diffusion barriers, enhanced specific storage capacity, and average open circuit voltage.
APPLIED SURFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Hao Wu, Lihua Zheng, Ning Du, Bowen Sun, Jie Ma, Yingying Jiang, Jiadong Gong, Huan Chen, Lianbang Wang
Summary: The rational design of compact graphite/Si/SiO2 ternary composites enhances packing density and leads to higher areal capacity compared to pure graphite. Introducing Si/SiO2 clusters into void spaces between graphite particles provides an effective strategy for implementing graphite-Si composite anodes in next-generation Li-ion cells.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Biochemistry & Molecular Biology
Yajing Yan, Yanxu Chen, Yongyan Li, Xiaoyu Wu, Chao Jin, Zhifeng Wang
Summary: In this study, a Si/Fe2O3-anchored rGO framework was successfully prepared as a LIB anode with outstanding electrochemical performance, including high reversible capacity and excellent cycling stability. The framework's high specific surface area and promotion of ions and electrons transmission contribute to its exceptional performance.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Multidisciplinary
Ki-Hun Nam, Sangmin Jeong, Byeong-Chul Yu, Jeong-Hee Choi, Ki-Joon Jeon, Cheol-Min Park
Summary: The study suggests that Li-compound anodes are a promising category of high-performance LIB anodes, capable of simultaneously meeting the requirements for high reversibility and safety.
Article
Chemistry, Physical
Chansoon Kang, Young Whan Cho
Summary: A new method for detecting localized electrically failed particles in Li-ion battery electrodes is introduced using voltage contrast imaging techniques, which can indicate the electron charging effect on disconnected particles caused by mechanical cracks or organic solid electrolyte interphases.
JOURNAL OF POWER SOURCES
(2021)
Article
Nanoscience & Nanotechnology
Xiang Gao, Wenquan Lu, Jun Xu
Summary: This study investigates the atomic behavior of Li diffusion in Si/C composite materials using density functional theory, comparing two structural mixing formats: simple mixture and core-shell. It is found that carbon material increases Li diffusion in silicon by about 50%, with the mixture mode showing a more significant boost. The results offer new insights into Li diffusion behavior in Si/C composites and provide guidance for battery modeling and structure design.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Ceramics
Xiao Liu, Yafei Zhao, Yunyong Li, Wenwu Li
Summary: Silicon, as the highest capacity LIB anode material, has been commercialized. However, its slow conductivity impedes large-scale application. To improve the reaction kinetics, aluminum and phosphorus are co-introduced into silicon, forming a new family of AlSixP solid solutions. The AlSixP series materials show promising potential for utilization in LIBs due to their improved conductivity and stability.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Jie Liu, Yanan Gao, Chenjie Lou, Yongjin Chen, Xiang Gao, Ligang Xu, Qi Wei, Guangcan Bai, Guoquan Liu, Mingxue Tang
Summary: Hybrid architectures integrating Fe7S8@NC@MoS2 with a three-dimensional heterostructure are designed in this study. The adjustable voids of the material can buffer the volume change during intercalation of metal ions. Additionally, the presence of MoS2 enhances electronic conductivity and metal ion transfer, resulting in improved battery performance.
ACS MATERIALS LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Feng Shao, Hong Li, Lu Yao, Shiwei Xu, Gang Li, Bin Li, Cheng Zou, Zhi Yang, Yanjie Su, Nantao Hu, Yafei Zhang
Summary: In this study, a flexible graphene-fiber-fabric-based three-dimensional conductive network was designed to create a binder-free and self-standing silicon anode, demonstrating excellent battery performance. The GFF/Si-37.5% and GFF/Si-29.1% electrodes exhibited outstanding performance in terms of cyclability and reversible capacity.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Optics
Galan Moody, Volker J. Sorger, Daniel J. Blumenthal, Paul W. Juodawlkis, William Loh, Cheryl Sorace-Agaskar, Alex E. Jones, Krishna C. Balram, Jonathan C. F. Matthews, Anthony Laing, Marcelo Davanco, Lin Chang, John E. Bowers, Niels Quack, Christophe Galland, Igor Aharonovich, Martin A. Wolff, Carsten Schuck, Neil Sinclair, Marko Loncar, Tin Komljenovic, David Weld, Shayan Mookherjea, Sonia Buckley, Marina Radulaski, Stephan Reitzenstein, Benjamin Pingault, Bartholomeus Machielse, Debsuvra Mukhopadhyay, Alexey Akimov, Aleksei Zheltikov, Girish S. Agarwal, Kartik Srinivasan, Juanjuan Lu, Hong X. Tang, Wentao Jiang, Timothy P. McKenna, Amir H. Safavi-Naeini, Stephan Steinhauer, Ali W. Elshaari, Val Zwiller, Paul S. Davids, Nicholas Martinez, Michael Gehl, John Chiaverini, Karan K. Mehta, Jacquiline Romero, Navin B. Lingaraju, Andrew M. Weiner, Daniel Peace, Robert Cernansky, Mirko Lobino, Eleni Diamanti, Luis Trigo Vidarte, Ryan M. Camacho
Summary: Integrated photonics is crucial for the large-scale integration of quantum systems, enabling programmable quantum information processing, chip-to-chip networking, hybrid quantum system integration, and high-speed communications.
JOURNAL OF PHYSICS-PHOTONICS
(2022)
Article
Chemistry, Physical
Murtaza Bohra, Remi Arras, Jean-Francois Bobo, Vidyadhar Singh, Naresh Kumar, Hsiung Chou
Summary: The ability to combine multiple spintronic properties in the ZnxFe3-xO4 system with different variants of its chemical composition offers a new route towards homodevices. By growing ZnxFe3-xO4 thin films from a ZnFe2O4 target under a reduced atmosphere, with an appropriate choice of growth temperature, unique properties such as high saturation magnetization and low resistivity can be engineered. The phase formation in the laser-ablated ZnxFe3-xO4 thin films differs from bulk thermal equilibrium, showing a competition between the reduction of Zn content and the formation of O vacancies at different growth temperature zones.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Optics
Jin Chang, Johannes W. N. Los, Ronan Gourgues, Stephan Steinhauer, S. N. Dorenbos, Silvania F. Pereira, H. Paul Urbach, Val Zwiller, Iman Esmaeil Zadeh
Summary: Superconducting nanowire single-photon detectors (SNSPDs) have become the leading technology for quantum light detection. This study presents a new approach using SNSPDs made from NbTiN superconducting films, which achieve high system detection efficiency and sub-15 ps timing jitter in the mid-infrared range. The detectors also demonstrated unity internal detection efficiency at 3 μm and 80% internal efficiency at 4 μm, paving the way for efficient mid-infrared single-photon detection without the need for milliKelvin cooling.
PHOTONICS RESEARCH
(2022)
Correction
Chemistry, Multidisciplinary
Thomas Lettner, Samuel Gyger, Katharina D. Zeuner, Lucas Schweickert, Stephan Steinhauer, Carl Reuterskiold Hedlund, Sandra Stroj, Armando Rastelli, Mattias Hammar, Rinaldo Trotta, Klaus D. Jons, Val Zwiller
Article
Materials Science, Multidisciplinary
Anil Annadi, Murtaza Bohra, Vidyadhar Singh
Summary: Engineering the electronic properties of VO2 allows for the design of various electronic devices operating with low voltage. The study investigates the electrical and structural properties of sputter deposited VO2 thin films on SiO2/Si substrates. The results show that the insulator to metal transition can still occur at a film thickness of 23 nm in polycrystalline VO2 films. The research demonstrates the importance of morphological and structural growth dynamics in the modulation of the transition.
Article
Optics
Thomas Hummel, Alex Widhalm, Jan Philipp Hopker, Klaus D. Jons, Jin Chang, Andreas Fognini, Stephan Steinhauer, Val Zwiller, Artur Zrenner, Tim J. Bartley
Summary: Superconducting nanowire single-photon detectors (SNSPDs) have high efficiency, low dark count rate, and short recovery time. Gating the SNSPD allows for active de-latching and temporal filtering, expanding its applications. The rise time of the gating depends on the inductance of the detector and control electronics, and the gate window can be freely tuned up to 500 ns. The gated operation demonstrated an increased photon counting dynamic range and temporal filtering capabilities.
Article
Optics
Kai Zou, Zifan Hao, Yifan Feng, Yun Meng, Nan Hu, Stephan Steinhauer, Samuel Gyger, Val Zwiller, Xiaolong Hu
Summary: We present a fiber-coupled fractal superconducting nanowire single-photon detector (SNSPD) system with minimal polarization dependence in detection efficiency. The system detection efficiency (SDE) was maximized at 1540 nm wavelength, with a measured value of 91 +/- 4%; moreover, we observed a second local maximum of SDE at 520 nm wavelength, with a measured value of 61 +/- 2%. This dual-band feature is attributed to the enhancement of optical absorptance by two longitudinal resonance modes of the micro-cavity. By utilizing high SDE with minimal polarization dependence in these two bands, we successfully implemented a hybrid LIDAR for imaging remote objects in free space and underwater.
Review
Chemistry, Physical
Panagiotis Grammatikopoulos, Theodoros Bouloumis, Stephan Steinhauer
Summary: This article provides an overview of recent advances in nanoparticle growth experiments via gas-phase synthesis, specifically magnetron-sputtering inert-gas condensation. It discusses the applications of gas-phase synthesized nanoparticles in energy, catalysis, sensing, and neuromorphic devices for unconventional computing. The challenges and limiting factors are identified, and potential solutions involving advances in nanoparticle source instrumentation and in situ diagnostics are outlined. The article concludes by suggesting the most promising and impactful applications of gas-phase synthesized nanoparticles in the future.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Jun Gao, Leonardo Santos, Govind Krishna, Ze-Sheng Xu, Adrian Iovan, Stephan Steinhauer, Otfried Guhne, Philip J. Poole, Dan Dalacu, Val Zwiller, Ali W. Elshaari
Summary: In this study, an eight-mode on-demand single-photon W state is generated using nanowire quantum dots and a silicon nitride photonic chip. The W state is reconstructed in photonic circuits using Fourier and real-space imaging, supported by the Gerchberg-Saxton phase retrieval algorithm. The entangled nature of the generated state is confirmed by utilizing an entanglement witness. This study provides a new imaging approach for assessing multipartite entanglement in W states, contributing to the progress in image processing and Fourier-space analysis techniques for complex quantum systems.
Article
Chemistry, Multidisciplinary
Isabel Ciria-Ramos, Emilio J. Juarez-Perez, Marta Haro
Summary: A Cu2O-TiO2 photoelectrode is proposed for simultaneous solar light energy harvesting and storing of electrochemical energy in an adapted lithium coin cell. The Cu2O semiconductor layer acts as the light harvester and induces lithiation/delithiation processes in the TiO2 film based on the applied bias voltage and light power. This study presents a new approach for the role of photoelectrodes in advancing monolithic rechargeable batteries.
Article
Chemistry, Multidisciplinary
Alessandro Prencipe, Samuel Gyger, Mohammad Amin Baghban, Julien Zichi, Katharina D. Zeuner, Thomas Lettner, Lucas Schweickert, Stephan Steinhauer, Ali W. Elshaari, Katia Gallo, Val Zwiller
Summary: This study reports on the implementation of superconducting nanowire single-photon detectors on thin film lithium niobate ridge nano-waveguides, which shows great potential for on-chip quantum optics experiments.
Article
Chemistry, Inorganic & Nuclear
Isabel Ciria-Ramos, Ines Tejedor, Lucia Caparros, Beatriz Donagueda, Oscar Lacruz, Ainhoa Urtizberea, Olivier Roubeau, Ignacio Gascon, Marta Haro
Summary: Metal-organic frameworks (MOFs) are promising materials for next-generation batteries due to their high surface area, well-defined metal centers, and organic linkers. In this study, a Ni-3(HHTP)(2) MOF was synthesized at the air-liquid interface and used as an electrode in lithium batteries. The MOF film protected the copper collector from oxidation and exhibited improved coulombic efficiency with the inclusion of crystallization time. The use of Langmuir technique allows for the testing of MOF-based materials without the need for additives in the electrodes.
DALTON TRANSACTIONS
(2023)
Article
Materials Science, Multidisciplinary
Vidya Alman, V. V. Ramakrishna, Sai Vittal Battula, B. N. Sahu, Anil Annadi, Vidyadhar Singh, Murtaza Bohra
Summary: From multicomponent high-entropy alloys (AlCoCrFeNi) to ternary alloys (CrFeNi) and binary alloys (NiCr), Cr doping plays a crucial role in modifying the magnetocaloric properties of the resulting alloys. The magnetocaloric effect (MCE) of Ni100-xCrx (x = 5, 10, 15 at.%) nanogranular thin films was investigated by varying the concentration of Cr, showing near room-temperature magnetic entropy change (- delta S-M = 0.08 J/kg K) and relative cooling power (RCP = 25 J/kg) at 10 at.% Cr. The MCE properties can be well predicted using a phenomenological model based on magnetization as a function of temperature, showing good correlation with experimentally measured magnetic isotherms.
MRS COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Joshua C. Bienfang, Val Zwiller, Stephan Steinhauer
Summary: This article focuses on materials challenges in single-photon detectors and reviews recent progress. In particular, SPADs and SNSPDs have shown excellent performance in high-count-rate single-photon counting. The article also discusses device configurations specifically designed for high-speed optoelectronics and compares the advantages and tradeoffs of different device technologies.