Results 111 to 120 of about 2,621,724 (309)

Phase Evolution Kinetics in Additive‐Free 19.75% Organic Photovoltaics Empowered by Solvent Vapor Annealing

open access: yesAdvanced Functional Materials, EarlyView.
Solvent vapor annealing enables kinetic control of additive‐free morphology in organic solar cells. Selective plasticization of acceptor forms an optimal fibrillar network, boosting efficiency to 19.06% (binary) and 19.75% (ternary), with ultrafast exciton dissociation and reduced recombination.
Jie Lv   +20 more
wiley   +1 more source

Switchable and tuneable multi-wavelength ER-doped fibre ring laser using sagnac filters¹ [PDF]

open access: yes, 2010
We demonstrate experimentally a simple configuration to perform wavelength-tuning and multi-wavelength operation in a fibre ring laser that is composed of an Erbium-doped fibre and includes a fibre-optic Sagnac interferometer as a spectral filter.
BALDEMAR IBARRA ESCAMILLA, EVGENY KUZIN
core  

Pickering‐Engineered Microparticles for Magnetically Guided Motion and Light‐Triggered Catalysis

open access: yesAdvanced Functional Materials, EarlyView.
Magnetically responsive wax microparticles stabilized by hematite cubes through the Pickering emulsification strategy are developed, showing controlled size, motion, and light‐activated catalytic activity. Annealing under a magnetic field enhances their mobility and steering.
Chiara Ferlito   +6 more
wiley   +1 more source

Characterization of a turbo-switch SOA wavelength converter using spectrographic pulse measurement [PDF]

open access: yes, 2008
We use the frequency-resolved optical gating (FROG) technique to determine the pulsewidth and chirp characteristics of wavelength-converted pulses from a turbo-switch and asymmetrical Mach-Zehnder filter combination under a variety of operating ...
Reid, Douglas A.   +6 more
core   +1 more source

Advancing Tandem Organic Solar Cells With Ternary Acceptor Control for High‐Power Modules and Solar‐to‐Ammonia Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Tandem organic solar cells with optimized ternary acceptor engineering achieved a power conversion efficiency of 15.53% and enabled a high‐voltage mini‐module (Voc 6.11 V). Integration into a bias‐free PV‐EC system further demonstrated efficient solar‐to‐ammonia (STA) conversion (97% Faradaic Efficiency, 4± 2% STA efficiency), highlighting scalable ...
Seyeong Song   +11 more
wiley   +1 more source

Investigation of the tolerance of wavelength-routed optical networks to traffic load variations.

open access: yes, 2006
This thesis focuses on the performance of circuit-switched wavelength-routed optical network with unpredictable traffic pattern variations. This characteristic of optical networks is termed traffic forecast tolerance.
Lao, Ningning, Lao, N.
core  

Multi-wavelength laser generation based on nonlinear effects in PCF and Bi-EDF / Roghaieh Parvizi [PDF]

open access: yes, 2012
This thesis describes multi-wavelength laser generation process based on stimulated Brillouin scattering (SBS) and four-wave mixing (FWM) nonlinear effects utilizing photonic crystal fibre (PCF) or/and Bismuth based Erbium doped fibre (Bi-EDF) as the ...
Parvizi, Roghaieh
core  

Application of Ibuprofen Sodium Dihydrate for Thermochemical Energy Storage

open access: yesAdvanced Functional Materials, EarlyView.
Ibuprofen sodium dihydrate is introduced as a durable organic salt hydrate for low‐temperature thermochemical energy storage, operating within 60°C–110°C with high energy density. At the material level, it delivers ∼99.9% cycling efficiency over 150 cycles without deliquescence, enabled by a dual energy‐storage mechanism coupling dehydration and phase ...
Kavin Chakravarthy Thangaraj   +10 more
wiley   +1 more source

Multi-Wavelength Digital-Phase-Shifting Moiré Based on Moiré Wavelength

open access: yesApplied Sciences, 2019
Multi-wavelength digital-phase-shifting moiré was demonstrated using multiple moiré wavelengths determined by system calibration over the full working depth.
Fatemeh Mohammadi, Jonathan Kofman
doaj   +1 more source

ICAROHS - Inter-Comparison of Aerosol Retrievals and Observational Requirements for Multi-wavelength HSRL Systems

open access: yes, 2010
The ESA-STSE study ICAROHS exploits the potential improvements and benefits of novel multi-wavelength High Spectral Resolution Lidar (HSRL) technology combined with innovative retrieval methods for future satellite missions.
Weinzierl, Bernadett   +14 more
core  

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