Results 81 to 90 of about 60,477 (322)

Room Temperature Synthesis and Photopatterning of Mesoporous Titanium Dioxide Thin Films

Advanced Materials Technologies, EarlyView.
A nanofabrication strategy combining deep‐UV photolithography with block copolymer self‐assembly enables direct patterning and mineralization of mesoporous TiO2 thin films at room temperature. Photocatalytic titanium oxo‐clusters promote polymer degradation under UV irradiation, enabling multiscale control over porosity, film thickness, and lateral ...
Youssef Ghossoub, Laurent Noel, Dominique Berling, Victor Malgras, David Grosso, Olivier Soppera   +5 more
wiley   +1 more source

Simultaneous dual-element analyses of refractory metals in naturally occurring matrices using resonance ionization of sputtered atoms [PDF]

, 1995
The combination of secondary neutral mass spectrometry (SNMS) and resonance ionization spectroscopy (RIS) has been shown to be a powerful tool for the detection of low levels of elemental impurities in solids.
Burnett, D. S., Calaway, W. F., Gruen, D. M., Pellin, M. J., Wiens, R. C.   +4 more
core   +1 more source

Nanoporous Microelectrodes for Neural Electrophysiology Recordings in Organotypic Culture

Advanced Materials Technologies, EarlyView.
The highly porous microelectrodes have been designed and printed on culture membranes, allowing to record electrophysiological neural activity for rodent brain slices. To keep the biocompatible nanoporous structure, the microelectrodes and insulative layer are fabricated on the bottom of culture membranes with only small connector pads added on the top.
Petro Lutsyk, Debjani Goswami, Stephen Worrall, Stuart D. Greenhill   +3 more
wiley   +1 more source

Transverse Optical Mode Patterns for an RF Excited Ar-He-Xe Laser [PDF]

, 1999
Transverse optical modes for an RF excited Ar-He-Xe laser are studied both experimentally and theoretically. A diffraction model for a waveguide with a nonsaturable gain and refractive index gradients placed between two plane mirrors is formulated.
Blok, Frans J., Elkin, Nikolay N., Kochetov, Igor V., Napartovich, Anatoly P., Peters, Peter J.M., Starostine, Sergei A., Troshchieva, Vera N., Udalov, Yuri B., Witteman, W.J.   +8 more
core   +2 more sources

Disrupting J‐Aggregation in Triazatruxene Dimers to Develop Responsive Luminescent Inks for Anti‐Counterfeiting Applications

Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
This study investigates the stimulus‐responsive behavior of trialkylated triazatruxene dimers for third‐generation luminescent security inks. In particular, the derivative with flexible dodecyl chains displays high‐contrast, reversible color changes upon heating or shear, driven by liquid crystalline phase transitions and involving J ...
Raúl Martín, Marcelo Echeverri, Francisco González, Alicia de Andrés, M. Carmen Ruiz Delgado, Alberto Concellón, José Luis Serrano, Berta Gómez‐Lor   +7 more
wiley   +1 more source

Excimer Laser Three-Dimensional Micromachining Based on Image Projection and the Optical Diffraction Effect

Applied Sciences, 2018
An excimer laser three-dimensional (3D) micromachining system is proposed based on a mask image projection method and the optical diffraction effect. The effects of optical diffraction on the laser machining rate are evaluated using a hole-arrayed mask ...
Yu-Hsuan Hung, Hung-Liang Chien, Yung-Chun Lee   +2 more
doaj   +1 more source

Wettability characteristics of an Al2O3/SiO2-based ceramic modified with CO2, Nd:YAG, excimer and high-power diode lasers [PDF]

, 1999
Interaction of CO2, Nd:YAG, excimer and high power diode laser (HPDL) radiation with the surface of an Al2O3/SiO2 based ceramic was found to effect significant changes in the wettability characteristics of the material. It was observed that interaction
Agathopoulos S, Bahners T, Canning C, Chattoraj D K, Chen X, Dausinger F, Fowkes F M, Good R J, Gutowski V W, Heitz J, J Lawrence, Kokai F, L Li, Lawrence J, Lawrence J, Li J G, Liu Z, Mayers D, McMillan T A, Miki T, Neumann A W, Neumann A W, Olfert M, Schmidt M J J, Schomaker K T, Shafeev G A, Steg P G, Tassignon M J, Ueki M, Zhou X B, Zhou X B   +30 more
core   +1 more source

Room‐Temperature, Photo‐Densified High Refractive Index Titanium Oxide Thin Films for Solution‐Processed Flexible Bragg Mirrors and Microcavity OLEDs

Advanced Optical Materials, EarlyView.
This paper presents the room‐temperature fabrication of solution‐processed, high refractive index TiOX thin films via photo‐densification. Using these films, flexible Bragg mirrors are demonstrated on PET substrates, achieving a high reflectivity of 96% at 450 nm.
Ayumu Nagaoka, He Sun, Luyang Song, Lina Yoshida, Tsukasa Yoshida, Yoshiyuki Suzuri   +5 more
wiley   +1 more source

Pulsed excimer laser processing [PDF]

, 1985
The status of pulsed excimer laser processing of PV cells is presented. The cost effective feasibility of fabricating high efficiency solar cells on Czochralski wafers using a pulsed excimer laser for junction formation, surface passivation, and front ...
Wong, D.
core   +1 more source

Wafer Scale III‐Nitride Deep‐Ultraviolet Vertical‐Cavity Surface‐Emitting Lasers Featuring Nanometer‐Class Control of Cavity Length

Advanced Science, EarlyView.
A DUV‐VCSEL strategy featuring the nanometer‐class control of the cavity length is proposed in the DUV optoelectronic framework based on GaN templates. After the sapphire removal, a self‐terminated etching technology is developed, whereby the cavity length can be accurately determined by epitaxy instead of the fabrication process. As such, a record low
Chen Ji, Jiaming Wang, Fujun Xu, Lisheng Zhang, Jing Lang, Ziyao Zhang, Fuyun Tan, Chengzhi Ji, Junchuan Zhang, Erfei Zhang, Xiangning Kang, Zhixin Qin, Guangxu Ju, Jiejun Wu, Xuelin Yang, Ning Tang, Xinqiang Wang, Weikun Ge, Bo Shen   +18 more
wiley   +1 more source