Engineering physics ≈ Engineering physics
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First principles phonon calculations in materials science Open
Phonon plays essential roles in dynamical behaviors and thermal properties, which are central topics in fundamental issues of materials science. The importance of first principles phonon calculations cannot be overly emphasized. Phonopy is…
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30 Years of Lithium‐Ion Batteries Open
Over the past 30 years, significant commercial and academic progress has been made on Li‐based battery technologies. From the early Li‐metal anode iterations to the current commercial Li‐ion batteries (LIBs), the story of the Li‐based batt…
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How To Correctly Determine the Band Gap Energy of Modified Semiconductor Photocatalysts Based on UV–Vis Spectra Open
ADVERTISEMENT RETURN TO ISSUEPREVViewpointNEXTHow To Correctly Determine the Band Gap Energy of Modified Semiconductor Photocatalysts Based on UV–Vis SpectraPatrycja MakułaPatrycja MakułaFaculty of Chemistry, Jagiellonian University in Kra…
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Present and Future of Surface-Enhanced Raman Scattering Open
The discovery of the enhancement of Raman scattering by molecules adsorbed on nanostructured metal surfaces is a landmark in the history of spectroscopic and analytical techniques. Significant experimental and theoretical effort has been d…
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High-entropy alloy: challenges and prospects Open
High-entropy alloys (HEAs) are presently of great research interest in materials science and engineering. Unlike conventional alloys, which contain one and rarely two base elements, HEAs comprise multiple principal elements, with the possi…
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Recent development of two-dimensional transition metal dichalcogenides and their applications Open
This article reviews the recent progress in 2D materials beyond graphene and includes mainly transition metal dichalcogenides.
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The metallurgy and processing science of metal additive manufacturing Open
Here, additive Manufacturing (AM), widely known as 3D printing, is a method of manufacturing that forms parts from powder, wire, or sheets in a process that proceeds layer-by-layer.Many techniques (using many different names) have been dev…
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Machine learning and the physical sciences Open
Machine learning encompasses a broad range of algorithms and modeling tools\nused for a vast array of data processing tasks, which has entered most\nscientific disciplines in recent years. We review in a selective way the recent\nresearch …
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Promises and challenges of perovskite solar cells Open
The efficiencies of perovskite solar cells have gone from single digits to a certified 22.1% in a few years’ time. At this stage of their development, the key issues concern how to achieve further improvements in efficiency and long-term s…
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Ultrahigh power factor and thermoelectric performance in hole-doped single-crystal SnSe Open
Heat conversion gets a power boost Thermoelectric materials convert waste heat into electricity, but often achieve high conversion efficiencies only at high temperatures. Zhao et al. tackle this problem by introducing small amounts of sodi…
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On Maxwell's displacement current for energy and sensors: the origin of nanogenerators Open
Self-powered system is a system that can sustainably operate without an external power supply for sensing, detection, data processing and data transmission. Nanogenerators were first developed for self-powered systems based on piezoelectri…
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Review—SEI: Past, Present and Future Open
The Solid-Electrolyte-Interphase (SEI) model for non-aqueous alkali-metal batteries constitutes a paradigm change in the understanding of lithium batteries and has thus enabled the development of safer, durable, higher-power and lower-cost…
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A vacuum flash–assisted solution process for high-efficiency large-area perovskite solar cells Open
Metal halide perovskite solar cells (PSCs) currently attract enormous research interest because of their high solar-to-electric power conversion efficiency (PCE) and low fabrication costs, but their practical development is hampered by dif…
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The Development and Future of Lithium Ion Batteries Open
This year, the battery industry celebrates the 25th anniversary of the introduction of the lithium ion rechargeable battery by Sony Corporation. The discovery of the system dates back to earlier work by Asahi Kasei in Japan, which used a c…
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QuantumATK: an integrated platform of electronic and atomic-scale modelling tools Open
QuantumATK is an integrated set of atomic-scale modelling tools developed since 2003 by professional software engineers in collaboration with academic researchers. While different aspects and individual modules of the platform have been pr…
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Pseudocapacitance: From Fundamental Understanding to High Power Energy Storage Materials Open
There is an urgent global need for electrochemical energy storage that includes materials that can provide simultaneous high power and high energy density. One strategy to achieve this goal is with pseudocapacitive materials that take adva…
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Towards flexible solid-state supercapacitors for smart and wearable electronics Open
Flexible solid-state supercapacitors (FSSCs) are frontrunners in energy storage device technology and have attracted extensive attention owing to recent significant breakthroughs in modern wearable electronics.
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A quantum engineer's guide to superconducting qubits Open
The aim of this review is to provide quantum engineers with an introductory guide to the central concepts and challenges in the rapidly accelerating field of superconducting quantum circuits. Over the past twenty years, the field has matur…
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An Outlook on Lithium Ion Battery Technology Open
Lithium ion batteries as a power source are dominating in portable electronics, penetrating the electric vehicle market, and on the verge of entering the utility market for grid-energy storage. Depending on the application, trade-offs amon…
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Semiconductor quantum dots: Technological progress and future challenges Open
Advances in colloidal quantum dots The confinement found in colloidal semiconductor quantum dots enables the design of materials with tunable properties. García de Arquer et al . review the recent advances in methods for synthesis and surf…
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Semiconducting materials for photoelectrochemical energy conversion Open
To achieve a sustainable society with an energy mix primarily based on solar energy, we need methods of storing energy from sunlight as chemical fuels. Photoelectrochemical (PEC) devices offer the promise of solar fuel production through a…
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Materials for lithium-ion battery safety Open
We summarize the origins of lithium-ion battery safety issues and discuss recent progress in materials design to improve safety.
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CO<sub>2</sub> Hydrogenation to Formate and Methanol as an Alternative to Photo- and Electrochemical CO<sub>2</sub> Reduction Open
In this study, carbon dioxide is one of the end products of combustion, and is not a benign component of the atmosphere. The concentration of CO2 in the atmosphere has reached unprecedented levels and continues to increase owing to an esca…
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The 2017 terahertz science and technology roadmap Open
Science and technologies based on terahertz frequency electromagnetic radiation (100 GHz–30 THz) have developed rapidly over the last 30 years. For most of the 20th Century, terahertz radiation, then referred to as sub-millimeter wave or f…
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Temperature effect and thermal impact in lithium-ion batteries: A review Open
Lithium-ion batteries, with high energy density (up to 705 Wh/L) and power density (up to 10,000 W/L), exhibit high capacity and great working performance. As rechargeable batteries, lithium-ion batteries serve as power sources in various …
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Promises and Challenges of Next-Generation “Beyond Li-ion” Batteries for Electric Vehicles and Grid Decarbonization Open
The tremendous improvement in performance and cost of lithium-ion batteries (LIBs) have made them the technology of choice for electrical energy storage. While established battery chemistries and cell architectures for Li-ion batteries ach…
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Ultrawide‐Bandgap Semiconductors: Research Opportunities and Challenges Open
Ultrawide‐bandgap (UWBG) semiconductors, with bandgaps significantly wider than the 3.4 eV of GaN, represent an exciting and challenging new area of research in semiconductor materials, physics, devices, and applications. Because many figu…
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Understanding the rate-dependent J–V hysteresis, slow time component, and aging in CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> perovskite solar cells: the role of a compensated electric field Open
Ionic displacement modifying the electric field in the device is found as most likely reason for the hysteresis which is examined by separating fast and slow processes and comparing devices with and without blocking layer.
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Review on spintronics: Principles and device applications Open
International audience
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Rechargeable nickel–3D zinc batteries: An energy-dense, safer alternative to lithium-ion Open
Zinc can compete with lithium Although lithium-based batteries are ubiquitous, there are still challenges related to their longevity and safety, as well as concerns about material availability. Aqueous rechargeable batteries based on zinc …