Results 51 to 60 of about 47,052 (302)

Luminescence spectroscopy of natural and synthetic REE-bearing minerals [PDF]

, 2009
This study investigates the photoluminescence (PL), cathodoluminescence (CL), radioluminescence (RL) and ionoluminescence (IL) of natural and synthetic minerals.
Friis, Henrik
core  

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

Advanced 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, Zhewen Xu, Yuwen Xu, Björn Josteinsson, Simon Josephy, Dawei Zhang, Yunlong Sun, Heung‐Sik Park, Jihun Kim, Kanghyun Chu, Kyung Song, Danyang Wang, Chan‐Ho Yang, Andrea Morales, Jan Seidel   +14 more
wiley   +1 more source

Scanning x-ray excited optical luminescence microscopy in GaN [PDF]

, 2006
In this work, an imaging tool to investigate optical inhomogeneities with site and chemical sensitivities has been integrated in a hard x-ray microprobe.
Miskys, C., Martínez Pastor, Juan Pascual, Martínez-Criado, Gema, Somogyi, A., Homs, Alejandro, Susini, Jean, Pereira, J., Alén, Benito   +7 more
core   +1 more source

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

Advanced 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, Jieni Chen, Cenqi Yan, Patrick W. K. Fong, Jingjing Zhao, Daming Zheng, DingQin Hu, Xiaoman Ding, Xiaokang Sun, Chuanlin Gao, Guangye Zhang, Qianguang Yang, Can Zhu, Pei Cheng, Shirong Lu, Zhipeng Kan, Zhiwei Ren, Guangliu Ran, Wenkai Zhang, Hanlin Hu, Gang Li   +20 more
wiley   +1 more source

Clusterization‐Triggered Emission from Cellulose‐Based Luminophores in Dilute Aqueous Solution through Imine Formation

Advanced Functional Materials, EarlyView.
Clusterization‐triggered emission is realized in dilute aqueous solution by introducing imine linkages into cellulose‐based luminophores. Imine functionalization creates O/N‐rich, hydrogen‐bonded clustered microenvironments that stabilize emissive states and restrict molecular motions. Luminescence is tunable by amine type and multiplicity.
Yazhou Su, Akihide Sugawara, Madhurangika Panchabashini Horathal Pedige, Youhei Takeda, Satoshi Minakata, Hiroshi Uyama   +5 more
wiley   +1 more source

Luminescence properties of Europium and Terbium doubly activated yttrium Niobium/ Tantalate Phosphors under X-ray excitation

Moldavian Journal of the Physical Sciences, 2009
Yttrium tantalate, yttrium niobium-tantalate, and yttrium niobate doubly doped by Eu3 and Tb3 were investigated using X-ray diffraction and X-ray excitation luminescence in order to study their structural and luminescent properties. By means of X-ray
Nazarov, Mihail, Arellano, I., Autor, Nou   +2 more
doaj  

A Bayesian analysis of luminescence dating [PDF]

, 2008
Luminescence dating is a widespread dating method used in the fields of archaeology and Quaternary science. As an experimental method it is subject to various uncertainties in the determination of parameters that are used to evaluate age.
Huntriss, Alicia
core  

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

Advanced Materials, EarlyView.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti, Valerio Di Lisio, Lucia Cardo, Alessandro Camilli, Estela Moretón Alfonsín, Daniele Cangialosi, Amaia Iturrospe Ibarra, Arantxa Arbe, Maurizio Prato   +8 more
wiley   +1 more source

β-Ga2O3:Cr nanowires with optical microcavities for determining local heating induced by x-ray nanobeams

APL Materials
This study explores the x-ray excited optical luminescence (XEOL) of optical microcavities fabricated in β-Ga2O3:Cr nanowires (NWs). XEOL measurements reveal prominent luminescence bands in the near ultraviolet-blue (NUV-B) and in the red-near infrared ...
D. Carrasco, J. Dolado, P. Pérez-Peinado, B. Rodríguez, M. Alonso-Orts, J. M. San Juan, M. L. Nó, P. Hidalgo, G. Martínez-Criado, B. Méndez, E. Nogales   +10 more
doaj   +1 more source

Stimulated luminescence properties of natural alexandrite in response to X-ray irradiation [PDF]

This paper reports for the first time the in-depth study of thermoluminescence (TL) and optically stimulated luminescence (OSL) of Brazilian alexandrite pellets (BeAl2O4: Cr3+) previously exposed to X-rays. Firstly, structural and composition analysis of
Yoshimura, E. M., Trindade, N. M., Ulsen, C., Silva, A. O., Nunes, M. C.S. [UNESP], Amorim, Y. F.   +5 more
core   +1 more source