Results 61 to 70 of about 134,154 (310)

Chlorination‐Enabled Oxygen Control and Dual‐Sulfur Source Aided Trap Passivation to Unlock 8.24% Efficient Sb2S3 Photovoltaic Devices

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates a scalable, low‐temperature synthesis strategy that combines a thioacetamide (TA)‐based dual sulfur source with CdS chlorination, enabling the formation of high‐quality Sb2S3 with a reduced open‐circuit voltage loss, resulting in improved device efficiency.
Vijay C. Karade   +16 more
wiley   +1 more source

Effective red-orange emitting CaMgPO4Cl:Sm3+ halophosphate phosphor

open access: yesResults in Physics, 2016
Red-orange Sm3+ doped in CaMgPO4Cl halophosphate phosphor excited at 405 nm was prepared by combustion synthesis. The structure and properties were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and photoluminescence (PL ...
P.K. Naktode, K.N. Shinde, N.S. Kokode
doaj   +1 more source

Upconversion and infrared emission of Er3+ /Yb3+ co-doped SiO2 -Gd2O3 obtained by sol-gel process [PDF]

open access: yesProcessing and Application of Ceramics, 2015
This work reports on the preparation of materials based on Yb3+ /Er3+ co-doped SiO2-Gd2O3 via sol-gel process. The 0.4 mol% of Er3+ ions was fixed and the amount of Yb3+ ions changed as 1.8, 5 and 9 mol% in order to evaluate the photoluminescence ...
Leonardo A. Rocha   +4 more
doaj   +1 more source

The growth and characterisation of ordered arrays of zinc oxide nanostructures and optical studies of defects in zinc oxide [PDF]

open access: yes, 2012
In this work the growth of c-axis aligned zinc oxide nanorods on non-epitaxially matched substrates is examined. Nanorod arrays were deposited on silicon by seeding and chemical bath deposition (CBD), carbothermal vapour phase transport (CTR-VPT) and a ...
Byrne, Daragh
core  

Swelling‐Induced Stress‐Assisted Transfer of Nanodiamond Arrays With a PVA Carrier Tape for Conformal Bio‐Integrated Sensing and Labelling

open access: yesAdvanced Functional Materials, EarlyView.
This work introduces a swelling‐induced, stress‐assisted water‐soluble PVA tape strategy to transfer‐print nanodiamond quantum‐sensor arrays onto soft, curved biological interfaces. The room‐temperature, water‐triggered process achieves >98% fidelity and residue‐free integration, enabling conformal quantum sensing on contact lenses, neural probes, and ...
Luyao Zhang   +9 more
wiley   +1 more source

ANALYSIS OF THE INFLUENCE OF GOLD NANOPARTICLE ADDITION TO PHOTOLUMINESCENCE EMISSION INTENSITY AND DECAY TIME OF 618-CDSE QUANTUM DOTS

open access: yesSpektra: Jurnal Fisika dan Aplikasinya, 2018
Abstrak Telah dilakukan pencampuran nanopartikel emas dengan kuantum dot CdSe 618. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh penambahan nanopartikel emas terhadap intensitas emisi dan waktu peluruhan fotoluminesensi kuantum dot CdSe ...
Muhammad Lawrence Pattersons   +1 more
doaj   +1 more source

Enhancement of ultrafast photoluminescence from deformed graphene studied by optical localization microscopy

open access: yesNew Journal of Physics, 2020
By using localization techniques, we demonstrated that the morphology of a 2D material in three dimensions can be optically obtained with nanometer precision in z -axis.
En-Xiang Chen   +8 more
doaj   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

open access: yesAdvanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil   +13 more
wiley   +1 more source

Temporal coherence of spatially indirect excitons across Bose–Einstein condensation: the role of free carriers

open access: yesNew Journal of Physics, 2018
We study the time coherence of the photoluminescence radiated by spatially indirect excitons confined in a 10 μ m electrostatic trap. Above a critical temperature of about 1 K, we show that the photoluminescence is homogeneously broadened in the dilute ...
Romain Anankine   +6 more
doaj   +1 more source

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

open access: yesAdvanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang   +14 more
wiley   +1 more source

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