Results 31 to 40 of about 11,113 (261)

Observation of Multi-Phonon Emission in Monolayer WS₂ on Various Substrates

Nanomaterials, 2023
Transition metal dichalcogenides (TMDs) have unique absorption and emission properties that stem from their large excitonic binding energies, reduced-dielectric screening, and strong spin–orbit coupling.
Eli R. Adler, Thy Doan Mai Le, Ibrahim Boulares, Robert Boyd, Yangchen He, Daniel Rhodes, Edward Van Keuren, Paola Barbara, Sina Najmaei   +8 more
doaj   +1 more source

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

Advanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar, Fumikazu Murakami, Xing He, Konnor Koons, Xinyan Li, Bumseop Kim, Shihan Qin, Varun Harbola, Jochen Mannhart, Yimo Han, Ruijuan Xu, Shengxi Huang, Andrew M. Rappe, Hanyu Zhu   +13 more
wiley   +1 more source

A randomized, controlled, split-face, double-blind comparison of a multimodality pigment-correcting serum containing lotus sprout extract versus hydroquinone for moderate to severe facial hyperpigmentation, including melasma, in a diverse populationCapsule Summary

JAAD International
Background: Hyperpigmentation results in uneven skin tone, with darker skin types disproportionately affected. Objective: Assess efficacy and safety of a novel, hydroquinone (HQ)-free, multimodal pigment-correcting serum (Advanced Brightening Treatment ...
Priscilla Huang, BA, Summer F. Acevedo, PhD, Tsing Cheng, PhD, Rahul C. Mehta, PhD, Elizabeth T. Makino, BS, CCRA, MBA   +4 more
doaj   +1 more source

Evidence for Clear‐Sky Dimming and Brightening in Central Europe

Geophysical Research Letters, 2021
For the explanation of the observed decadal variations in surface solar radiation (known as dimming and brightening), the relative importance of clouds and the cloud‐free atmosphere (particularly aerosols) is currently disputed. Here, we investigate this
Martin Wild, Stephan Wacker, Su Yang, Arturo Sanchez‐Lorenzo   +3 more
doaj   +1 more source

Multi‐Biomimetic Structural Colors Inspired by Pearls and Bird Feathers

Advanced Materials, EarlyView.
A dual‐biomimetic strategy mimicking pearls and bird feathers is proposed to construct full‐gamut structural colors. By integrating a non‐strictly periodic inorganic multilayer architecture with tunable light absorbers, this facile approach circumvents the complex fabrication of traditional 1D photonic crystals, offering immense potential for cosmetics,
Zhiwei Wang, Qiuyu Cheng, Qiuyu Jin, Fu Tang, Wenbin Cao, Ayahisa Okawa, Takuya Hasegawa, Takehiro Goto, Natsumi Yamaguchi, Takumi Tanaka, Te‐Wei Chiu, Tohru Sekino, Shu Yin   +12 more
wiley   +1 more source

Bright‐Dark Exciton Splitting in Lead Iodide Perovskite Crystals Accessed via Quantum Beats in Photon Echoes

Advanced Optical Materials, EarlyView.
Understanding exciton fine structure is crucial for optoelectronic and quantum photonic applications of lead halide perovskites. It is demonstrated that polarization‐sensitive photon‐echo spectroscopy in a magnetic field resolves exciton fine‐structure splittings hidden by inhomogeneous broadening, enabling direct determination of the bright‐dark ...
M. Alex Hollberg, Mikhail O. Nestoklon, Artur V. Trifonov, Stefan Grisard, Oleh Hordiichuk, Dmitry N. Dirin, Maksym V. Kovalenko, Dmitri R. Yakovlev, Manfred Bayer, Ilya A. Akimov   +9 more
wiley   +1 more source

Nanoscale Secondary Ion Mass Spectrometry for Quantifying Membrane Fouling: Fouling Layer Structure and Chemical Interaction

Advanced Science, EarlyView.
Nanoscale secondary ion mass spectrometry (Nano SIMS) is established as a powerful analytical tool to visualize and quantify the membrane fouling layers. ABSTRACT Membrane technology has garnered considerable attention for applications in wastewater treatment and resource recovery. Nevertheless, membrane fouling remains a major barrier, yet the lack of
Mengfei Wu, Xinhua Wang, Pin Zhao, Weilong Song, Ming Xie   +4 more
wiley   +1 more source

How extremes in surface incident solar radiation shape its long-term trends in China and Europe

Environmental Research Letters
Although extremes of surface incident solar radiation ( R _s ) are critical for climate and energy assessments, their long-term variations and contributions to R _s trends remain poorly understood.
Yanyi He, Kun Yang, Mingyu Zhang, Jingjing Zhou, Chenlu Li, Xin Zhang, Xiaoyue Tan, Kaicun Wang   +7 more
doaj   +1 more source

Evaluating the Efficacy of Sunscreen Formulas in Reducing UV Filter Permeation Into the Stratum Corneum via In Vivo Confocal Raman Spectroscopy: Insights and Applications for Practical Suncare Product Design. [PDF]

Photodermatol Photoimmunol Photomed
ABSTRACT Aims The transdermal permeation of UV filters has long been a concern among consumers and researchers. Among them, the permeation of small‐molecule UV filters such as homosalate (HMS) (molecular weight < 500 Da) and the regulatory effects of formulation components on its permeation have not been fully investigated.
Zhang T, Lu H, Ning S, Liu Y, Li T, Zhao X, Liu H, Liu Y, Chen J.   +8 more
europepmc   +2 more sources

Reversible, Chemically Gated FRET via Ligand‐Activated Acceptors

Advanced Science, EarlyView.
Fluorogen binding turns the compact FAST tag into a tunable FRET acceptor, with ligand chemistry programming spectral overlap and excited‐state lifetimes. Fluorescence‐lifetime imaging reads out energy transfer through the shortened donor lifetime, while simply adding or washing out the dye switches FRET on and off, reversibly mapping the supramodular ...
Nivedita Singh, Smruti Ranjan Nayak, Sanjay Kumar Mohanty, Aishwarya Hanumantharaju, Amala Shaju, Mini Jose, Aravind Penmatsa, Deepak Nair   +7 more
wiley   +1 more source