Results 151 to 160 of about 313,825 (290)

Microwave Spectroscopy of Few-Carrier States in Bilayer Graphene Quantum Dots

PRX Quantum
Bilayer graphene is a maturing material platform for gate-defined quantum dots that hosts long-lived spin and valley states. Implementing solid-state qubits in bilayer graphene requires a fundamental understanding of such confined electronic systems.
Max J. Ruckriegel, Christoph Adam, Rebecca Bolt, Chuyao Tong, David Kealhofer, Artem O. Denisov, Mohsen Bahrami Panah, Kenji Watanabe, Takashi Taniguchi, Thomas Ihn, Klaus Ensslin   +10 more
doaj   +1 more source

Engineering Dirac Cones in Graphene for Efficient Iodide Catalysis: Insights by Nanoscale Electrochemistry

Advanced Science, EarlyView.
Graphene iodide oxidation is regulated by Dirac cone engineering. Electrostatic gating tunes the Fermi level to control local iodide oxidation reaction activity, while magic‐angle twisted bilayer graphene creates flat‐band‐derived interfacial states that promote charge transfer and iodine‐species interaction, revealing a nanoscale route to electronic ...
Yang‐Sheng Lu, Kuo‐En Chang, Ta‐Lei Chou, Aitor Garcia‐Ruiz, Ting‐Han Lin, Yen‐Ting Liu, Akichika Kumatani, Ming‐Hao Liu, Kenji Watanabe, Takashi Taniguchi, Ming‐Wen Chu, Tse‐Ming Chen, Chun‐Wei Chen, Shao‐Sian Li   +13 more
wiley   +1 more source

Toward High‐Resolution Polymeric Neural Interfaces: A Practical Guide for Electron Beam Lithography

Advanced Science, EarlyView.
Electron beam lithography (EBL) enables sub‐micron patterning of polymer‐based neural implants, overcoming the resolution limits of optical lithography. By addressing challenges such as charging, non‐planarity, and substrate heating, it supports higher channel density, improved miniaturization, and better long‐term tissue integration.
Hanna Karlsson‐Fernberg, Maria Asplund
wiley   +1 more source

Expanding the absorption bandwidth with two-layer graphene metamaterials in gigahertz frequency range

Communications in Physics
This work investigates the design and performance of a bilayer graphene metamaterial absorber operating in the GHz region. We initially analyzed a single-layer metamaterial absorber composed of a conductive ink graphene structure on a FR-4 dielectric ...
Ngo Nhu Viet, Vu Dinh Lam, Bui Son Tung, Bui Xuan Khuyen, Pham Thanh Son, Nguyen Hai Anh, Nguyen Phon Hai, Do Khanh Tung, Do Thuy Chi   +8 more
doaj   +1 more source

Engineering Ultrastable Intrinsic Radicals: Graphene Quantum Dots With NIR‐II Emission for Dynamic Deep‐Tissue Bioimaging

Advanced Science, EarlyView.
Stable radicals are attractive for photonic and quantum information technologies but are often limited by instability. We stabilize intrinsic radicals in graphene quantum dots via 2D polymerization of perylene derivatives, where bilayer defect confinement suppresses quenching (100–500 K).
Qin Xu, Yijie Hou, Bingzhe Wang, Tesen Zhang, Yupeng Liu, Shuaiqi Li, Maohua Chen, Guichuan Xing, Dongbo Guo, Songnan Qu   +9 more
wiley   +1 more source

Coulomb Screening of Superconductivity in Magic-Angle Graphene

Physical Review X
The origin of superconductivity in magic-angle twisted bilayer graphene has been a subject of intense debate. While some experimental evidence indicated an unconventional pairing mechanism which should be sensitive to Coulomb screening, experimental ...
Julien Barrier, Liangtao Peng, Shuigang Xu, Christophe De Beule, V. I. Fal’ko, K. Watanabe, T. Tanigushi, A. K. Geim, Shaffique Adam, Alexey I. Berdyugin   +9 more
doaj   +1 more source

Printable Piezoresistive Hybrid Hydrogels Based on 2D MoS2 for Flexible Pulse Sensing

Advanced Science, EarlyView.
Hybrid 1T‐MoS2‐based hydrogels are engineered through UV curing and 3D printing to achieve tunable electromechanical properties for wearable sensing. These soft architectures enhance mechanical stability and reproducible piezoresistive responses within the physiological pressure range.
Jenny Flores, Arianna Bertero, Luca Ceseracciu, Daniel Jiménez‐Boland, Sara Domenici, Mattia Bramini, Paola Sánchez‐Moreno, Erica Scarcelli, Domenico Galdiero, Pavel Fedorov, Daniil Karnaushenko, Rossella Sesia, Ignazio Roppolo, Micaela Pozzati, Mattia Spedicati, Nicolò Petrini, Marco Sangermano, Bartolomeo Coppola, Teresa Gatti   +18 more
wiley   +1 more source

Anomalous Enhancement in MXene‐Based Electrochemical Actuators: Pseudo‐Capacitance‐Induced Multi‐Charge Accumulation in Confined Space

Advanced Science, EarlyView.
We elucidate the electrochemical actuation mechanism of 2D material‐based electrodes within a MXene‐centered framework, linking atomic‐scale surface chemistry to macroscopic performance (see schematic). Mechanistically, the reduction of Ti─O─Ti sites in H2SO4 triggers the accumulation of hydrated ions at confined active sites, resulting in anomalous ...
Jiang Xu, Jipeng Feng, Bingqing Hu, Xude Li, Shifei Huang, Shanhai Ge, Guoxiu Wang   +6 more
wiley   +1 more source

Ru‐Doping‐Engineered Oxygen Vacancies in MoO3‐x Nanostructured Films With Ultrahigh Capacitance for Flexible Asymmetric Supercapacitors

Advanced Science, EarlyView.
Ru‐doping‐induced defect engineering enables freestanding Ru–MoO3‐x flexible films with enriched oxygen vacancies, modulated band structure, and enhanced charge transport. The optimized electrode delivers ultrahigh capacitance approaching the theoretical limit of MoO3, while assembled asymmetric supercapacitors exhibit high energy density, wide‐voltage
Xiaoqing Bin, Minhao Sheng, Norman C.‐R. Chen, Xiangyang Liu, Yingji Zhao, Yingyi Liao, Wenxiu Que, Yusuke Asakura, Yusuke Yamauchi   +8 more
wiley   +1 more source

Graphene‐Engineered Rear Interfaces Enable Efficient Flexible CZTSSe Solar Cells on Metal Foils

Advanced Science, EarlyView.
An atomically thin graphene interlayer stabilizes the rear interface of flexible CZTSSe solar cells by regulating interfacial stress, suppressing detrimental interfacial reactions, and reducing the back‐contact barrier. This strategy simultaneously improves photovoltaic performance and mechanical durability.
Yixiong Ji, Wentong Yang, Di Yan, Wei Luo, Jialu Li, Shi Tang, Jintao Fu, James Bullock, Mei Gao, Xin Li, Zhancheng Li, Jun Yang, Zhenghong Xiong, Yang Peng, Pengjun Zhao, Xingzhan Wei, Haofei Shi, Paul Mulvaney, Fangyang Liu   +18 more
wiley   +1 more source