Results 61 to 70 of about 71,771 (337)

Zero-Energy Photoelectric Effect

open access: yesPhysical Review Letters
We predict a near-threshold (“zero energy”) peak in multiphoton ionization for a dynamical regime where the photon frequency is large compared to the binding energy of the electron. The peak position does not depend on the laser frequency but on the binding energy and the pulse duration.
Sajad Azizi, Ulf Saalmann, Jan M. Rost
openaire   +3 more sources

Unassisted Photoelectrochemical Hydrogen Production Coupled with Selective Glucose Oxidation Using Metal Halide Perovskite Photoanodes

open access: yesAdvanced Functional Materials, EarlyView.
A metal halide perovskite‐based photoanode integrated with a CoNiFe layered double hydroxide (LDH) cocatalyst is reported for selective glucose oxidation reaction (GOR), achieving simultaneous and unassisted photoelectrochemical hydrogen production. This system delivers high photocurrent density, excellent Faradaic efficiency of GOR, and strong techno ...
Shujie Zhou   +12 more
wiley   +1 more source

Solution-processed Bi2S3/BiVO4/TiO2 ternary heterojunction photoanode with enhanced photoelectrochemical performance

open access: yesNanotechnology Reviews, 2023
TiO2 is an important component of photoelectric devices. How to broaden the light absorption of TiO2 and accelerate the separation of photo-generated electrons and holes is the focus of the current research.
Li Xinli   +8 more
doaj   +1 more source

Evaluation of a Real-Time Monitoring and Management System of Soybean Precision Seed Metering Devices

open access: yesAgronomy, 2023
Aiming at precise evaluation of the performance of soybean seed metering devices, a photoelectric sensor-based real-time monitoring system was designed. The proposed system mainly included a photoelectric sensor module for seeding signal collecting, Hall
Jicheng Zhang   +6 more
doaj   +1 more source

Measurement of the ratio h/e with a photomultiplier tube and a set of LEDs

open access: yes, 2016
We propose a laboratory experience aimed at undergraduate physics students to understand the main features of the photoelectric effect and to perform a measurement of the ratio h/e, where h is the Planck's constant and e is the electron charge.
Loparco, F.   +3 more
core   +1 more source

Transducer Materials Mediated Deep Brain Stimulation in Neurological Disorders

open access: yesAdvanced Functional Materials, EarlyView.
This review discusses advanced transducer materials for improving deep brain stimulation (DBS) in neurological disorders. These materials respond to light, ultrasound, or magnetic fields, enabling precise, less invasive neuromodulation. Their stimulus‐responsive properties enhance neural control and adaptive therapy, paving the way for next‐generation ...
Di Zhao   +5 more
wiley   +1 more source

Symmetric two-coordinate photodiode [PDF]

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2008
The two-coordinate photodiode is developed and explored on the longitudinal photoeffect, which allows to get the coordinate descriptions symmetric on the steepness and longitudinal resistance great exactness.
Dobrovolskiy Yu. G.   +3 more
doaj  

Lepton Flavor Violating Photoleptonic Effect

open access: yes, 2007
We study lepton flavor violating analogs of the photoelectric effect, with a final $\mu$ or $\tau$ instead of an electron: $\gamma e\to \mu$ and $\gamma e\to \tau$.
E. M. Lifshitz   +4 more
core   +1 more source

Developing and Researching PhET simulations for Teaching Quantum Mechanics [PDF]

open access: yes, 2008
Quantum mechanics is difficult to learn because it is counterintuitive, hard to visualize, mathematically challenging, and abstract. The Physics Education Technology (PhET) Project, known for its interactive computer simulations for teaching and learning
Dubson, M.   +6 more
core   +2 more sources

Polaronic and Electrochemical Signatures in Group IVB (Ti, Zr, Hf) Oxides: Unified SKP–DFT Insights for Tunable Transport in Energy and Electronic Devices

open access: yesAdvanced Functional Materials, EarlyView.
Charge carrier concentration and mobility in TiO2, ZrO2, and HfO2 powder films are experimentally mapped as a function of temperature. The results uncover polaron‐mediated transport regimes and field‐activated conduction, enabling the design of oxide‐based electronic and energy devices with thermally tunable functionality.
Beatriz Moura Gomes   +3 more
wiley   +1 more source

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