Results 111 to 120 of about 577,537 (285)

Photonic Nanomaterials for Wearable Health Solutions

open access: yesAdvanced Materials, EarlyView.
This review discusses the fundamentals and applications of photonic nanomaterials in wearable health technologies. It covers light‐matter interactions, synthesis, and functionalization strategies, device assembly, and sensing capabilities. Applications include skin patches and contact lenses for diagnostics and therapy. Future perspectives emphasize AI‐
Taewoong Park   +3 more
wiley   +1 more source

Microwave irradiation directly excites semiconductor catalyst to produce electric current or electron-holes pairs

open access: yesScientific Reports, 2019
Generally, photon of Microwave (MW) electromagnetic waves have long been thought to be lower energy, which could not excite metals or semiconductor materials to generate electric current and electron-holes pairs (e− cb + h+ vb).
Jicheng Zhou   +7 more
doaj   +1 more source

Mathematical analysis of the photoelectric effect [PDF]

open access: yesAdv. Theor. Math. Phys. 5 (2001) 969-999, 2002
We study the photoelectric effect on the example of a simplified model of an atom with a single bound state, coupled to the quantized electromagnetic field. For this model, we show that Einstein's prediction for the photoelectric effect is qualitatively and quantitatively correct to leading order in the coupling parameter.
arxiv  

Photoelectric effect on concrete artifacts produced with the addition of luminescent substances and polymer residues

open access: yesJournal of King Saud University: Engineering Sciences
Among the practical applications of Quantum Physics, photoluminescence has stood out in different contexts in Engineering and Architecture. Due to the photoelectric effect, certain substances emit photons after being exposed to solar energy.
Monalisa Both   +3 more
doaj  

Numerical Analysis of the Relationship between the Photoelectric Effect and Energy of the X-Ray Photons in CT

open access: yesFrontiers in Biomedical Technologies, 2014
Purpose: Attenuation of x-rays in any object is a combined effect of scattering and absorption of x-ray photons by the atoms in the material. While the scattering part dependents linearly upon the material’s electron density (ρe) and is weakly dependent ...
Rezvan Ravanfar-Haghighi   +3 more
doaj  

Photoelectric phenomena in structures based on high-resistivity semiconductor crystals with a thin insulator layer at the semiconductor-metal boundary [PDF]

open access: yesSemiconductors 29 (11) (1995) 1092-1099, 2007
A previously unknown effect-giant spatial redistribution of the electric field strength in a crystal under illumination of the structure - was discovered and investigated in real photoresistors on high-resistivity (semi-insulating) semiconductor CdTe crystals (in metal-thin insulator- semiconductor-thin insulator -metal structures).
arxiv  

Research on the Evolution of Defects Initiation and the Diffusion of Dopant on the Si/SiO2 Interface

open access: yesAdvanced Materials Interfaces, EarlyView.
This review mainly introduces the recent investigations on the mechanisms of interface defect initiation and dopant diffusion, and the comparisons and discussions of the initial mechanism of defects, structures of defects to provide valuable guidance for improving the performance and extending the lifespan of Si/SiO2 interfaces.
Yunqi Yang   +7 more
wiley   +1 more source

Controlling the Photoelectric Effect in the Time Domain [PDF]

open access: yesarXiv, 2019
When an atom or molecule absorbs a high-energy photon, an electron is emitted with a well-defined energy and a highly-symmetric angular distribution, ruled by energy quantization and parity conservation. These rules seemingly break down when small quantum systems are exposed to short and intense light pulses, which raise the question of their ...
arxiv  

Twisted GeS Nanowire with Engineered Stacking Order and Tunable Composition

open access: yesAdvanced Materials Interfaces, EarlyView.
1D twisted GeS nanowires with engineered stacking orders and tunable bandgaps are synthesized using an axial screw dislocation mechanism. These nanowires exhibit enhanced photoelectronic properties and strong second harmonic generation (SHG), presenting new opportunities for future electronic and optoelectronic applications.
Qi Wu   +9 more
wiley   +1 more source

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