Results 121 to 130 of about 725,727 (302)

Exciton Binding Energy Modulation in 2D Perovskites: A Phenomenological Keldysh Framework

Advanced Functional Materials, EarlyView.
The intrinsic screening effects are successfully decoupled from structural distortion by rigorously designing a series of 2D perovskites. This enabled us to demonstrate how the dielectric environment modulates the quasiparticle bandgap and exciton binding energy.
Kitae Kim, Namhee Kwon, Sang Woo Park, Wonsik Kim, Seunghwan Kim, Eunki Yoon, Aelim Ha, Donggyu Lee, Young Yong Kim, Jong‐Cheol Lee, Sungho Lee, Junghan Lee, Kyu Hyoung Lee, Yeonjin Yi, Ki‐Ha Hong, Soohyung Park   +15 more
wiley   +1 more source

Single tin-vacancy center in nanoscale diamond

Discover Nano
Group-IV color centers in diamonds are promising not only as spin–photon interfaces for quantum networks but also as multicolor photoluminescence probes and all-optical temperature sensors for biological research.
Masanori Fujiwara, Masanao Ohori, Frederick Tze Kit So, Yuto Makino, Naoya Morioka, Izuru Ohki, Ryuji Igarashi, Masahiro Nishikawa, Norikazu Mizuochi   +8 more
doaj   +1 more source

Melt Grafting of Geometry‐Tailored Voltage Stabilizers for High‐Performance Polypropylene Insulation

Advanced Functional Materials, EarlyView.
A scalable one‐step melt grafting strategy is developed to enhance the dielectric properties of isotactic polypropylene by covalently incorporating thermally stable aromatic voltage stabilizers. This solvent‐free approach improves volume resistivity and DC breakdown strength through deep trap formation and charge localization, offering a sustainable ...
Nazirul Mubin bin Normansah, Taehoon Kwon, Hana Kim, Shin‐Ki Hong, Seung Won Lee, Se Hee Lee, Ik‐Su Kwon, Masahiro Kozako, Minhee Kim, Seunggun Yu   +9 more
wiley   +1 more source

Quantum metrology subject to spatially correlated Markovian noise: restoring the Heisenberg limit

New Journal of Physics, 2014
Environmental noise can hinder the metrological capabilities of entangled states. While the use of entanglement allows for Heisenberg-limited resolution, the largest permitted by quantum mechanics, deviations from strictly unitary dynamics quickly ...
Jan Jeske, Jared H Cole, Susana F Huelga
doaj   +1 more source

Germanane Quantum Dots Promote Metabolic Reprogramming of Immune Cells Toward Regulatory T Cells and Suppress Inflammation In Vitro and In Vivo

Advanced Functional Materials, EarlyView.
Metabolic changes in immune cells direct the phenotype and function of the host immune system. Smart nanomaterials must target metabolic pathways to direct immune cell fate. This study reports the fabrication and first application of germanane quantum dots (GeHQDs) to modulate inflammation in vitro and in vivo.
Abhay Srivastava, Alireza Rafieerad, Weiang Yan, Keshav Narayan Alagarsamy, Qingdong Guan, Leena Regi Saleth, Michel Aliani, Sanjiv Dhingra   +7 more
wiley   +1 more source

Glancing Angle Deposition for Enhanced Oxygen Evolution Reaction

Small Structures
The oxygen evolution reaction (OER) presents a major kinetic challenge in alkaline water electrolysis. Nickel oxide (NiO) is generally accepted as a favorable material due to its abundance and stability, yet it also exhibits limited intrinsic catalytic ...
Parsa Borhani, Aria Khalili, Ula Suliman, Jae‐Young Cho, Kenneth D. Harris, Shiva Mohajernia   +5 more
doaj   +1 more source

Pore Size Effects of Mesoporous N‐Doped Carbon Nanospheres as Advanced Support Material on the Activity of Molybdenum Sulfide Catalysts for the Hydrogen Evolution Reaction

Advanced Functional Materials, EarlyView.
By tuning the pore size of mesoporous N‐doped carbon (MPNC) nanospheres as support material for molybdenum sulfide, the electrochemical activity of the composite material for the hydrogen evolution reaction can be optimized. An ideal MPNC pore size of 60 nm allows a high number of molybdenum sulfide active sites while maintaining efficient proton and ...
Niklas Ortlieb, Christian Völker, Lars Guggolz, Anna Fischer   +3 more
wiley   +1 more source

How Well Can Quantum Embedding Method Predict the Reaction Profiles for Hydrogenation of Small Li Clusters?

Nanomaterials
Quantum computing leverages the principles of quantum mechanics in novel ways to tackle complex chemistry problems that cannot be accurately addressed using traditional quantum chemistry methods.
Dominic Alfonso, Benjamin Avramidis, Hari P. Paudel, Yuhua Duan   +3 more
doaj   +1 more source

Operando Temperature Sensing at the Actual Electrocatalytic Interface by Nanodiamond Quantum Sensors

Advanced Functional Materials, EarlyView.
By integrating a wide‐field microscope with a custom‐designed electrolyzer, nanoscale temperature changes can be recorded in situ during the electrolysis process without interfering with ongoing electrochemical reactions. This method establishes a correlation between the interface temperature and specific electrochemical reactions, making the measured ...
Zan Li, Hui Wang, Mingzhong Ai, Yao Gao, Xinyi Feng, Junchen Ye, Ying Wang, Quan Li   +7 more
wiley   +1 more source

Tuning the electronic and optical properties of dumbbell quantum dot via electric field

Heliyon
Dumbbell-shaped quantum dots represent a unique class of nanostructures, combining the quantum confinement effects of individual quantum dots with the enhanced coherence and tunneling properties of coupled systems.
N.Y. Yengibaryan, G.A. Mantashian, T.A. Sargsian, C. Garoufalis, S. Baskoutas, D.B. Hayrapetyan   +5 more
doaj   +1 more source