Results 71 to 80 of about 10,142 (134)

Mini‐Review: Angular Scattering and Directional Effects in Tip‐Enhanced Raman Spectroscopy

open access: yesJournal of Raman Spectroscopy, EarlyView.
Mini‐review: Angular scattering and directional effects in tip‐enhanced Raman spectroscopy. Felix Schneider, David Baschnagel, Tim Parker, Yang Zhao, Alfred J. Meixner*, Dai Zhang*. This mini‐review examines angular scattering and directional effects in tip‐enhanced Raman spectroscopy (TERS), emphasizing their importance for quantitative interpretation
Felix Schneider   +5 more
wiley   +1 more source

Synthesis and optoelectronic properties of new ethynylated pyrazine derivatives [PDF]

open access: yes, 2003
Several diaryleneethynylpyrazine derivatives, in which the pyrazine unit is electron-deficient, have been synthesised using Sonogashira palladium-catalysed cross-coupling reactions.
Zhao, Liang
core  

High‐Temperature Stable Narrowband Near‐Infrared Phosphor‐Converted Light‐Emitting Diode Based on Melt‐Grown CsPbCl3: Yb3+ Crystal

open access: yesRare Metals, EarlyView.
ABSTRACT Narrowband near‐infrared (NIR) phosphor‐converted light‐emitting diodes (pc‐LEDs) featuring low full‐width at half maximum (FWHM) and high conversion efficiency are crucial for chemical content evaluation, light therapy, and bioimaging.
Chunshen Li   +4 more
wiley   +1 more source

f‐Block Element‐Based MOF Thin Films: A Platform for Luminescence, Sensing, and Energy Applications

open access: yesSmall, EarlyView.
f‐Block element–based metal–organic framework (f‐MOF) thin films offer exceptional potential for luminescent, sensing, and energy‐related applications. This review surveys recent progress in their synthesis, characterization, and functional implementation, emphasizing the diversity of available thin‐film fabrication strategies. The convergence of these
Dong‐Hui Chen, Christof Wöll
wiley   +1 more source

Hot‐Injection‐Free Silicon Nanocrystals Realize Record‐Breaking Sustainable QD LEDs

open access: yesThe Chemical Record, EarlyView.
Silicon quantum dots are a safe and sustainable nanocrystal material that can be used in applications ranging from solar windows, upconversion, photodynamic therapy, and plant growth technologies. In our laboratory and others, recent advances have meant that the optical performance of these materials and the devices made from them has increased such ...
Ken‐ichi Saitow
wiley   +1 more source

RoHS‐Compliant, Cu‐Zn‐In‐Se‐Based Core/Multi‐shell Quantum Dots with Efficient and Tunable Short‐Wave Infrared Emission

open access: yesAdvanced Functional Materials, Volume 36, Issue 13, 12 February 2026.
An innovative combination of size‐controlled template synthesis, partial cation exchange reactions, and dual shell passivation offers a new class of RoHS‐compliant, heavy metal‐free Cu‐Zn‐In‐Se/ZnS/Al2O3 core/shell/shell quantum dots (QDs), exhibiting long‐range tunability, highly efficient SWIR emission with remarkably narrow photoluminescence ...
Avijit Saha   +8 more
wiley   +1 more source

Synchronized Electro‐Chromo‐Emissive Devices Using a Mixed Ionic‐Electronic Conductive Layer for XR Applications

open access: yesAdvanced Functional Materials, Volume 36, Issue 13, 12 February 2026.
A single cell type Electro‐chromo‐emissive (ECECL) device integrating synchronized electrochromic (EC) and electrochemiluminescent (ECL) functions is developed using a mixed ionic‐electronic conductor (MIEC). A MIEC layer reduces ionic/electronic resistance, enabling ultrafast switching and enhanced optical contrast.
Hwandong Jang   +5 more
wiley   +1 more source

Atomic Layer Deposition of Highly Conducting NiS2 Thin Films from Elemental Sulfur

open access: yesAdvanced Materials Interfaces, Volume 13, Issue 3, 3 February 2026.
A simple new atomic layer deposition (ALD) process yields in‐situ crystalline and electrically conducting nickel disulfide thin films. This deposition process is based on two solid and safe precursors, nickel acetylacetonate and elemental sulfur. ABSTRACT A novel atomic layer deposition (ALD) process for highly conducting nickel disulfide thin films is
Juha Linjala   +5 more
wiley   +1 more source

Enhancing Organic Light‐Emitting Diode Performance Using Naturally Derived Diatomite: A Cost‐Effective and Eco‐Friendly Strategy

open access: yesAdvanced Optical Materials, Volume 14, Issue 6, 9 February 2026.
Diatomite‐based light extraction structures enable enhanced photon outcoupling through multi‐angle scattering and far‐field redistribution. By harnessing the unique scattering behavior of diatomite, this approach introduces randomly oriented scattering centers that effectively reshape internal light propagation.
Chang Min Lee   +12 more
wiley   +1 more source

Progress and Prospects of Persistent Luminescent Nanocrystals in Biomedical Applications

open access: yesAdvanced Optical Materials, Volume 14, Issue 6, 9 February 2026.
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

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