Results 71 to 80 of about 9,194 (219)

Strategic Spatial Segregation in Silicon Photoelectrodes: Decoupling Catalytic and Optical Functions for High‐Efficiency Solar Water Splitting

Small Structures, Volume 6, Issue 5, May 2025.
A novel spatial segregation strategy for silicon photoelectrodes is demonstrated, where catalyst wires surrounded by tapered microwires effectively decouple competing optical and catalytic requirements. This architectural innovation enables optimal light absorption and catalytic activity while maintaining efficient charge transport, achieving 96.5 ...
Soohyeok Park, Dongho Seo, Sangbeom Hong, Geonhwi Kim, Yejin Han, Inkyeong Park, Seongmin Lee, Min‐Joon Park, Ki Min Nam, Han‐Don Um   +9 more
wiley   +1 more source

PICOSEC-Micromegas: Robustness measurements and study of different photocathode materials [PDF]

, 2018
International audienceDetectors with a time resolution of 20-30 ps and a reliable performance in high particles flux environments are necessary for an accurate vertex separation in future HEP experiments.
Paraschou, K., Thuiner, Patrik, Sohl, L., Guyot, C, García, F, Oliveri, E., Kordas, K, Zhou, Y, Oliveri, E, Niaouris, V, Brunbauer, Florian M., Sampsonidis, D, Pomorski, M, Gallinaro, M, Pomorski, M., Guyot, C., Liu, J., Legou, P., Müller, H., Desforge, D, Brunbauer, F., Schneider, T., Bortfeldt, J., Schwemling, P., Sohl, L, Papaevangelou, T, Gustavsson, T., Veenhof, R., Kordas, Kostas, David, C, Veenhof, Rob, Franchi, J, Desforge, D., Niaouris, V., Tsipolitis, Y, Gallinaro, M., Qi, B, Müller, H, Lupberger, M, Papaevangelou, T., Scorsone, E, Zhou, Y., Iguaz, F.J., Giomataris, I, Schneider, T, Thuiner, P, Resnati, F., González-Díaz, D., Veenhof, R, Iguaz, F J, Ropelewski, L., Tzamarias, S E, Franchi, J., Kordas, K., Legou, P, Giomataris, I., Qi, B., Scorsone, E., Kebbiri, M, Sampsonidis, D., Brunbauer, F, van Stenis, M., Tzamarias, S.E., González-Díaz, D, Resnati, F, Wang, X., Paraschou, K, Lupberger, M., Ropelewski, L, Wang, X, Thuiner, P., Gustavsson, T, Manthos, I, Manthos, I., García, F., Kebbiri, M., Tsipolitis, Y., Zhang, Z., van Stenis, M, Zhang, Z, David, C., Liu, J, Bortfeldt, J, White, S., Fanourakis, G, Schwemling, P, White, S, Lupberger, Michael, Fanourakis, G.   +88 more
core   +1 more source

Interventional human ocular safety experiments for 222‐nm far‐ultraviolet‐C lamp irradiation

Photochemistry and Photobiology, Volume 101, Issue 2, Page 517-526, March/April 2025.
To directly assess the ocular safety of 222‐nm far‐ultraviolet‐C (UVC) irradiation in humans, five subjects were exposed to 222‐nm UVC at doses of 22, 50, and 75 mJ/cm2. The findings indicate that far‐UVC irradiation does not cause “clinically significant photokeratitis” or long‐term ocular damage, though it may induce temporary discomfort.
Kazunobu Sugihara, Sachiko Kaidzu, Masahiro Sasaki, Masaki Tanito   +3 more
wiley   +1 more source

Photocathode behavior during high current running in the Cornell energy recovery linac photoinjector

Physical Review Special Topics. Accelerators and Beams, 2011
The Cornell University energy recovery linac (ERL) photoinjector has recently demonstrated operation at 20 mA for approximately 8 hours, utilizing a multialkali photocathode deposited on a Si substrate. We describe the recipe for photocathode deposition,
Luca Cultrera, Jared Maxson, Ivan Bazarov, Sergey Belomestnykh, John Dobbins, Bruce Dunham, Siddharth Karkare, Roger Kaplan, Vaclav Kostroun, Yulin Li, Xianghong Liu, Florian Löhl, Karl Smolenski, Zhi Zhao, David Rice, Peter Quigley, Maury Tigner, Vadim Veshcherevich, Kenneth Finkelstein, Darren Dale, Benjamin Pichler   +20 more
doaj   +1 more source

Single Atom‐Modified TiO2‐Based Catalysts for Photoelectrochemical Water Splitting: From Fundamentals to Future Prospects

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 6, November 2026.
Hydrogen and oxygen generated from water splitting process by photoelectrocatalysis of single atom modified TiO2 based photoelectrocatalysts. The accelerating demand for green hydrogen has intensified the development of efficient and durable photoelectrocatalysts (PECs) for sustainable water splitting.
Zichu Zhao, Cheryl Suwen Law, Abel Santos   +2 more
wiley   +1 more source

Metallized Diamond Photocathode Data

Raw data used to characterize a metallized diamond photocathode; .tif files obtained from the experimental system which may be analyzed to determine spectral MTE and QE characteristics for this photocathode.
Louis Angeloni (21355682), Walter Schroeder (10592510), Ir-Jene Shan (21438482)   +2 more
core   +1 more source

Millisecond Flash Photonic Regeneration of Conductive Copper From CuO Thin Films

Israel Journal of Chemistry, Volume 66, Issue 6, November 2026.
Millisecond flash photonic heating regenerates conductive copper from fully oxidized CuO thin films. Pulse trains partially reduce dense, ≈50 nm pulsed‐laser‐deposited CuO into a laterally heterogeneous Cu/Cu2O/CuO composite spanning the film, tuned by repetition number alone.
Shlomit Rosenbaum, Shahar Artzi, Xiaoyuan Wang, Lihi Rikanati, Doron Azulay, Ronen Gottesman   +5 more
wiley   +1 more source

Gallium Oxide Photocathode Data

Raw data used to characterize a gallium oxide photocathode; .tif files obtained from the experimental system which may be analyzed to determine spectral MTE and QE characteristics for this photocathode.
Louis Angeloni (21355682), Walter Schroeder (10592510), Ir-Jene Shan (21438482)   +2 more
core   +1 more source

Multi Alkali Antimonide Photocathode Development for High Brightness Beams

, 2022
Photocathode R amp;D at the Helmholtz Zentrum Berlin HZB is driven by the motivation to produce high brightness electron beams for the SRF photoinjector test facility, Sealab bERLinPro. Multi alkali antimonides are the choice photocathode material due
Kamps, T., Wang, C., Kühn, J., Mistry, S.   +3 more
core   +1 more source

Comparison between gradient-doping GaAs photocathode and uniform-doping GaAs photocathode

, 2007
We compared two reflection-mode negative electron affinity (NEA) GaAs photocathode samples that are grown by molecular beam epitaxy with p-type beryllium doping. One sample is uniform doping, and another is gradient doping.
Zou J (Zou Jijun), Qiao J (Qiao Jianliang), Chang, B, Nanjing Inst Sci & Technol, Inst Elect Engn & Optpelect Technol, Nanjing 210094, Jiangsu, Peoples R China. 电子邮箱地址: bkchang@mail.njust.edu.cn, Zeng Y (Zeng Yiping), Li H (Li Hui), Yang Z (Yang Zhi), Gao P (Gao Pin), Chang B (Chang Benkang)   +7 more
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