Results 201 to 210 of about 1,773,990 (337)

Ultra‐Durable Information‐Encoded Anti‐Counterfeiting Self‐Assembled Nanocrystal Labels

open access: yesAdvanced Optical Materials, EarlyView.
Ultra‐durable cost‐effective information‐encoded anti‐counterfeiting labels are fabricated to secure semiconductor chips. A novel method is used to self‐assemble colloidal quantum wells (CQWs) into color bars. Information can be encoded spatially, spectrally, and opto‐spatially.
Taha Haddadifam   +6 more
wiley   +1 more source

Enhancing Triplet Excitons Lifetime Through Controlled Intermolecular Interactions

open access: yesAdvanced Optical Materials, EarlyView.
Singlet fission (SF) is investigated in pentacene embedded in a surface‐anchored metal–organic framework, enabling a molecular arrangement inaccessible in pure organic crystals. This architecture changes the singlet fission dynamics significantly and enhances the triplet lifetime by almost four orders of magnitude.
Martin Richter   +9 more
wiley   +1 more source

3D Microprinting of Structures with Lanthanide‐Based Fluorophores on Optical Fibers for Multiplexed Sensing

open access: yesAdvanced Optical Materials, EarlyView.
Incorporating lanthanide‐based fluorophores into commercial resists for femtosecond direct laser writing enables a novel platform for multiplexed sensing. Porous, periodic, and solid luminescent microstructures fabricated directly on optical fiber tips are presented.
Valese Aslani   +8 more
wiley   +1 more source

Progress and Prospects of Persistent Luminescent Nanocrystals in Biomedical Applications

open access: yesAdvanced Optical Materials, EarlyView.
This review summarizes recent progress in materials‐level control of persistent luminescence, including mechanistic understanding, wavelength/intensity tuning, and activation strategies, as well as emerging biomedical applications in imaging, biosensing, cell tracking, optogenetic stimulation, and biophotochemical activation.
Peng Pei   +5 more
wiley   +1 more source

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

open access: yesAdvanced 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   +5 more
wiley   +1 more source

Information and Communications Technology (ICT) and agricultural extension in developing countries

open access: green, 2021
Spielman, David J.; Lecoutere, Els; Makhija, Simrin; Van Campenhout, Bjorn   +1 more
openalex   +2 more sources

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