Results 161 to 170 of about 127,361 (299)

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai   +8 more
wiley   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

Identification and Reversible Optical Switching of NV+ Centers in Diamond

open access: yesAdvanced Functional Materials, EarlyView.
NV+ centers in diamond are predicted to coexist with NV0 and NV– centers, but direct experimental confirmation remains challenging. Using positron annihilation spectroscopy with in situ light illumination, a charge transition NV+/0 is observed at 1.234(8) eV.
Marcel Dickmann   +13 more
wiley   +1 more source

An RFID-Inspired One-Step Packaged Multimode Bio-Analyzer with Vacuum Microfluidics for Point-of-Care Diagnostics. [PDF]

open access: yesDig Tech Pap IEEE Int Solid State Circuits Conf
Hsiao YT   +6 more
europepmc   +1 more source

Integration of Perovskite/Low‐Dimensional Material Heterostructures for Optoelectronics and Artificial Visual Systems

open access: yesAdvanced Functional Materials, EarlyView.
Heterojunctions combining halide perovskites with low‐dimensional materials enhance optoelectronic devices by enabling precise charge control and improving efficiency, stability, and speed. These synergies advance flexible electronics, wearable sensors, and neuromorphic computing, mimicking biological vision for real‐time image analysis and intelligent
Yu‐Jin Du   +11 more
wiley   +1 more source

Strain Plethysmography Using a Hermetically Sealed MEMS Strain Sensor. [PDF]

open access: yesBiosensors (Basel)
Jiang X   +5 more
europepmc   +1 more source

A computational model for angular velocity integration in a locust heading circuit

open access: yes
Insect navigation and its neural underpinnings provide an excellent model for inves- tigating basal cognitive abilities. This thesis focuses on the integration of angular velocity cues into the compass-like encoding of heading direction in the central com- plex of the desert locust. The central complex serves as a navigation hub within the insect brain.
openaire   +2 more sources

Engineering Strategies for 2D Layered Tin Halide Perovskite Field‐Effect Transistors

open access: yesAdvanced Functional Materials, EarlyView.
2D halide perovskites are promising candidates for field‐effect transistor (FET) applications due to their high stability and suppressed ion migration in the presence of bulky organic spacers. This review systematically summarizes the optimization engineering strategies of 2D perovskite FETs and future challenges, which provide guidance for developing ...
Shuanglong Wang   +4 more
wiley   +1 more source

Design and Implementation of a Low-Power Biopotential Amplifier in 28 nm CMOS Technology with a Compact Die-Area of 2500 μm<sup>2</sup> and an Ultra-High Input Impedance. [PDF]

open access: yesSensors (Basel)
Ranjbar Koleibi E   +12 more
europepmc   +1 more source

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