Results 301 to 310 of about 428,760 (394)

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

Understanding the Role of Fabry‐Perot Resonances in Maximizing Absorption for Ultrathin Sn Halide Perovskite Optoelectronic Devices

open access: yesAdvanced Optical Materials, EarlyView.
A design principle is presented that maximizes absorption in ultrathin (tens of nanometers) Sn halide perovskite optoelectronic devices by aligning their intrinsic absorption wavelengths with Fabry–Pérot (FP) resonances. The ultrathin FASnI3 devices exhibit increases open‐circuit voltage, reduces dark current, and high photocurrent, yielding high ...
Donggyu Lim   +6 more
wiley   +1 more source

Enhanced Stability of Cd‐Free Quantum Dot Light‐Emitting Diodes via Yttrium Acetate‐Modified ZnMgO: Suppressing Mg Migration

open access: yesAdvanced Optical Materials, EarlyView.
A surface passivation strategy using yttrium acetate to suppress Mg ion migration from the ZnMgO electron transport layer is proposed. This treatment restores oxygen vacancies on the ZnMgO surface, enhancing device stability. The Cd‐free quantum dot light‐emitting diodes demonstrate a 65.5% increase in operational lifetime with an external quantum ...
Hansol Choi   +3 more
wiley   +1 more source

What Do We Know About <i>Staphylococcus aureus</i> and Oxidative Stress? Resistance, Virulence, New Targets, and Therapeutic Alternatives. [PDF]

open access: yesToxics
Bastos MLC   +9 more
europepmc   +1 more source

Enhanced Amplified Spontaneous Emission from Optically Pumped Perovskite Light‐Emitting Diodes with Sodium Fluoride Additives

open access: yesAdvanced Photonics Research, EarlyView.
This study investigates sodium fluoride (NaF) as an additive in halide perovskite films to improve their optical and light amplification properties for application in laser diodes. The incorporation of NaF leads to a threefold increase in light‐emitting intensity and a 20% reduction in the amplified spontaneous emission (ASE) threshold, along with ...
Kanak Kanti Bhowmik   +8 more
wiley   +1 more source

Pressure‐Assisted Ceramic Processing of Metal Halide Perovskites

open access: yesAdvanced Photonics Research, EarlyView.
This review critically assesses low‐temperature, pressure‐assisted ceramic processing as a pivotal technique to fabricate dense, polycrystalline wafers with precisely controlled macroscopic dimensions as well as microstructural properties. The aim is to bridge understanding between expert ceramists and halide perovskite specialists, highlighting the ...
Michael C. Brennan   +5 more
wiley   +1 more source

Recent Advances in Laser‐Induced Phase Separation of PEDOT:PSS for Bioelectronics

open access: yesAdvanced Photonics Research, EarlyView.
This review explores the potential of laser‐induced phase separation of PEDOT:PSS for bioelectronic applications. It highlights the properties including enhanced electrical conductivity, wet stability, electrochemical stability, high pattern resolution, and biocompatibility.
Bei'er Zhu   +4 more
wiley   +1 more source

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