Results 41 to 50 of about 9,194 (219)

Study on the transit time spread characteristic of 20-in. hybrid photomultiplier tube used for high-energy particle detection

open access: yesAIP Advances, 2022
According to the requirements of high-energy particle detection for a large photocathode detection surface, low transit time spread (TTS), and low-cost photomultiplier tube (PMT), a kind of 20-in.
Liwei Xin   +10 more
doaj   +1 more source

Experimentally Determined Spatiotemporal Charge Carrier Dynamics for the Development of Particulate Photocatalysts

open access: yesAdvanced Energy Materials, EarlyView.
This review looks at the different experimental techniques that measure spatiotemporal charge carrier dynamics. This information is viewed in the context of particulate photocatalysts, outlining the insights these techniques provide and how they advance our understanding.
Sutripto Khasnabis, Robert Godin
wiley   +1 more source

Radio frequency photocathode guns [PDF]

open access: yes, 1992
This report examines the causes and the effects of beam emittance growth on the performance of radio frequency photocathode guns ...
Palmer, R. B.
core   +1 more source

Charge and fluence lifetime measurements of a dc high voltage GaAs photogun at high average current

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2011
GaAs-based dc high voltage photoguns used at accelerators with extensive user programs must exhibit long photocathode operating lifetime. Achieving this goal represents a significant challenge for proposed high average current facilities that must ...
J. Grames   +7 more
doaj   +1 more source

Effects of nanomaterials on Cs3Sb photocathode emission performance

open access: yesAIP Advances, 2022
A new approach to preparing the cesium antimonide photocathode has been developed. A tungsten sponge diffusion barrier layer, instead of the conventional nickel pipe, was used as the evaporation source so that a slow and uniform evaporation of the ...
Yanwen Liu   +4 more
doaj   +1 more source

Key Strategies on Cu2O Photocathodes toward Practical Photoelectrochemical Water Splitting

open access: yesNanomaterials, 2023
Cuprous oxide (Cu2O) has been intensively in the limelight as a promising photocathode material for photoelectrochemical (PEC) water splitting. The state-of-the-art Cu2O photocathode consists of a back contact layer for transporting the holes, an ...
Min-Kyu Son
doaj   +1 more source

A Standardizable Laboratory‑Scale Device for the Harmonization of Photoelectrochemical Experimental Procedures in Solar Redox Flow Cells

open access: yesCarbon Energy, EarlyView.
This work introduces UniFlowCell, a compact solar redox flow cell (SRFC) designed to harmonize experimental procedures and benchmarking. It minimizes efficiency losses, supports long‐term operation, and performs measurements under various electrode/illumination conditions.
Telmo da Silva Lopes   +2 more
wiley   +1 more source

The properties of opaque CsI photocathode

open access: yes, 2018
Cesium iodide (CsI) photocathode is widely used in various UV (ultraviolet) detecting devices because of its high quantum efficiency (QE) and good stability under short exposure to humid air.
Lizhi Sheng   +11 more
core   +1 more source

Evaluation of Pt Deposition onto Dye-Sensitized NiO Photocathodes for Light-Driven Hydrogen Production

open access: yesApplied Sciences, 2022
The design of photocathodes for the hydrogen evolution reaction (HER), which suitably couple dye-sensitized p-type semiconductors and a hydrogen evolving catalyst (HEC), currently represents an important target in the quest for artificial photosynthesis.
Federico Droghetti   +3 more
doaj   +1 more source

Design and Operation of Photovoltaic‐Driven Electrocatalytic Water Splitting for Hydrogen Production

open access: yesEcoEnergy, EarlyView.
Photovoltaic‐driven electrocatalytic water splitting offers a scalable route to green hydrogen. This review introduces fundamental photovoltaic principles and key PV performance metrics, compares different PV–EC configurations, and provides practical guidance on design, operation, and PV–EC matching. Key bottlenecks and future directions for efficiency
Zhenlan Dou   +6 more
wiley   +1 more source

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