Results 291 to 300 of about 695,264 (389)

From Photo‐Damage to Self‐Healing in Thin Film Pb‐Iodide Perovskites: Action at a Distance

open access: yesAdvanced Optical Materials, EarlyView.
Fluorescence imaging uncovers pronounced spatial and temporal changes in photoluminescence of halide perovskite films following laser‐induced damage. Modifications spatially extend well beyond the illuminated region and evolve over distinct time scales ranging from seconds to many hours, revealing material‐specific self‐healing pathways. These findings
Yahel Soffer   +4 more
wiley   +1 more source

Tunable‐Wavelength Broadband Liquid‐State Carbon‐Quantum‐Dot Lasers

open access: yesAdvanced Optical Materials, EarlyView.
This work provides a gain‐induced waveguide structure to achieve programmable mode spacing by coupling liquid‐state lasing of carbon quantum dots to a vertically placed aluminum mirror, enabling an unprecedented transition from random lasing to multimode lasing without cumbersome micromanufacturing, even single‐mode lasing at a wide range from 641 to ...
Xuezhe Dong   +9 more
wiley   +1 more source

Research on the Thermal Aging Characteristics of Cured Epoxy Resin Insulating Materials for DC Bushings. [PDF]

open access: yesPolymers (Basel)
Liu D   +8 more
europepmc   +1 more source

Flexible and Water‐Resistant Y3Al5O12:Er3+/Yb3+ Upconversion Nanoparticles‐Based Luminescent Cellulose Paper for Anti‐Counterfeiting and VOCs Detection

open access: yesAdvanced Optical Materials, EarlyView.
This work presents a cost effective and sustainable approach of designing flexible, water resistant and bright green luminescent Y3Al5O12:Er3+/Yb3+ upconversion nanoparticles (UCNPs) incorporated into cellulose paper for anti‐counterfeiting and volatile organic compounds (VOCs) detection applications.
Annu Balhara   +5 more
wiley   +1 more source

Morphological and Spectroscopic Characterization of Multifunctional Self-Healing Systems. [PDF]

open access: yesPolymers (Basel)
Guadagno L   +6 more
europepmc   +1 more source

Determining the Width of the Dynamic Emission Zone in Light‐Emitting Electrochemical Cells

open access: yesAdvanced Optical Materials, EarlyView.
The width of the dynamically evolving emission zone (EZ) in light‐emitting electrochemical cells (LECs) is important since it has a strong influence on the emission efficiency. Here, a spectral simulation and measurement method is presented, which is utilized for the determination of the EZ width evolution during the initial operation of a common ...
Xiaoying Zhang   +4 more
wiley   +1 more source

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