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High-Quality SnSe Thin Films for Self-Powered Devices and Multilevel Information Encryption.
ACS Appl Mater Interfaces
January 2025
School of Science, and Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System, Harbin Institute of Technology, Shenzhen 518055, China.
As semiconductor technology advances toward miniaturization and portability, thin films with excellent thermoelectric performance have garnered increasing attention, particularly for applications in self-powered devices and temperature-responsive sensors. The high Seebeck coefficient of SnSe thin films makes them promising for temperature sensing, but their poor electrical conductivity limits their potential as thermoelectric generators. In this work, high-quality -axis oriented SnSe thin films were deposited on quartz substrates by using magnetron sputtering.
View Article and Find Full Text PDFDeciphering the Interfacial Li-Ion Migration Kinetics of Ni-Rich Cathodes in Sulfide-Based All-Solid-State Batteries.
ACS Appl Mater Interfaces
January 2025
State Key Laboratory of Advanced Welding and Joining, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
Nickel-rich layered oxide with high reversible capacity and high working potentials is a prevailing cathode for high-energy-density all-solid-state lithium batteries (ASSLBs). However, compared to the liquid battery system, ASSLBs suffer from poor Li-ion migration kinetics, severe side reactions, and undesired formation of space charge layers, which result in restricted capacity release and limited rate capability. In this work, we reveal that the capacity loss lies in the H2-H3 phase transition period, and we propose that the inconsistent interfacial Li-ion migration is the arch-criminal.
View Article and Find Full Text PDFEnhanced Dielectric Energy Storage Performance of Polyimide/γ-GaO Nanocomposites under Dual Trap Mechanisms.
ACS Appl Mater Interfaces
January 2025
Sauvage Laboratory for Smart Materials, The School of Integrated Circuit, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
Article Synopsis
- The advancement of electronics and hybrid vehicles demands improved performance from polymer dielectrics, but their energy density drops due to leakage currents and losses at high temperatures and electric fields.
- γ phase GaO nanoplates were synthesized and added to a polyimide matrix to enhance dielectric properties by introducing traps that reduce charge flow and leakage.
- The resulting nanocomposite showed a high discharge energy density and breakdown strength at elevated temperatures, alongside impressive stability over many cycles, promising a new approach for capacitive energy storage in harsh environments.
Forecast of NOx Emissions for a 660MW Coal-Fired Boiler with Multilayered Gradient Boosting Decision Tree Considering Multiple Operating Modes.
ACS Omega
November 2024
School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang 212100, China.
Nitrogen oxides (NOx) are among the primary pollutants emitted by coal-fired power plants. Accurate prediction of NOx concentrations at the boiler outlet is crucial for optimizing unit control and reducing emissions. This study introduces a data-driven NOx emissions prediction methodology based on a multilayered Gradient Boosting Decision Tree (mGBDT) framework.
View Article and Find Full Text PDFEnhancing Titanium Osteoconductivity by Alkali-Hot Water Treatment.
ACS Omega
November 2024
Graduate School of Dentistry, Tohoku University, Sendai 980-8575, Japan.
Titanium and its alloys are essential in orthopedic and dental treatments owing to their high strength, corrosion resistance, and superior biocompatibility compared with those of other metals. However, titanium alloys are bioinert. Previous studies have indicated that alkali treatment (AT) is a straightforward method to create a surface oxidization layer on titanium, thereby improving its bioactivity.
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