Results 91 to 100 of about 17,007 (304)

Achievement of narrow-band blue-emitting phosphors KScSr_1-y Ca _y Si₂O₇:Bi³⁺ by the migration of luminescence centers. [PDF]

RSC Adv, 2021
Yao Y, Wang Z, Cao L, Zheng M, Wang X, Zhang M, Cui J, Yang Z, Ding W, Li P.   +9 more
europepmc   +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

Influence of swift heavy ions irradiation on optical and luminescence properties of Y3Al5O12 single crystals

Optical Materials: X
Optical and luminescence properties of Y3Al5O12 (YAG) single crystals preliminary irradiated by swift heavy ions were studied. Swift heavy Xe ions with fluences ranging from 6·1010 to 2·1012 ions/cm2 were utilized for the irradiation of nominally undoped
V. Pankratova, J. Butikova, A. Kotlov, A.I. Popov, V. Pankratov   +4 more
doaj   +1 more source

Visible luminescence peculiar to sintered silica nanoparticles: Spectral and decay properties [PDF]

, 2015
We report that the sintering at 1000 degrees C of silica nanoparticles (an average diameter of 14 nm) produces a transparent sample that exhibits a bright visible emission under UV excitation.
SPALLINO, Luisa, CANGIALOSI, Chiara, GELARDI, Franco Mario, CANNAS, Marco, VACCARO, Lavinia   +4 more
core   +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 and Electron–Hole-Trapping Centers in α-Ca₂P₂O₇−Mn

Crystals
The mechanisms of formation of induced intrinsic and impurity radiative states, which consist of intrinsic and impurity electron–hole-trapping center states in irradiated Ca2P2O7−Mn and Ca2P2O7  phosphates, were investigated using thermoactivation and ...
Turlybek N. Nurakhmetov, Temirulan T. Alibay, Keleshek B. Zhangylyssov, Aibek S. Nurpeissov, Sapargali Pazylbek, Diana Griesiute, Aleksej Zarkov, Aivaras Kareiva   +7 more
doaj   +1 more source

Photoactivation of Luminescent Centers in Single SiO₂ Nanoparticles

Nano Letters, 2016
Photobleaching of fluorophores is one of the key problems in fluorescence microscopy. Overcoming the limitation of the maximum number of photons, which can be detected from a single emitter, would allow one to enhance the signal-to-noise ratio and thus the temporal and spatial resolution in fluorescence imaging.
Tarpani, Luigi, Ruhlandt, Daja, Latterini, Loredana, Haehnel, Dirk, Gregor, Ingo, Enderlein, Jörg, Chizhik, Alexey I.   +6 more
openaire   +3 more sources

A Fully Human Engineered Bone Niche With Endogenous Osteoclastogenesis Reveals Osteoclast‐Dependent Osteomimicry in Prostate Cancer Cells

Advanced Healthcare Materials, EarlyView.
A human 3D bone niche integrating osteoblasts and osteoclasts enables co‐culture with prostate cancer cell lines and patient‐derived organoids. The engineered niche (i) models aspects of reciprocal phenotypic regulation between osteoblasts and cancer cells, (ii) captures osteoclast‐enhanced osteomimicry in tumor cells, and (iii) establishes a ...
Andrea Mazzoleni, Robin Dolgos, Thomas Menter, Boris Dasen, Arnaud Scherberich, Clémentine Le Magnen, Manuele G. Muraro, Ivan Martin   +7 more
wiley   +1 more source

An EXAFS study of the luminescent Bi3+ center in LaPO4Bi

Journal of Solid State Chemistry, 1987
In order to determine the oxygen coordination of the Bi3+ ion in LaPO,-Bi, extended X-ray absorption fine structure (EXAFS) spectra were measured of BiPO, and LaPO.,-Bi. Analysis of the EXAFS data shows that the Bi3+ ion in LaP04-Bi occupies the La’+ site, but that the oxygen coordination of the Bi3+ ion is distorted relative to that of La’+ in undoped
Zon, F.B.M. van, Koningsberger, D.C., Oomen, E.W.J.L., Blasse, G.   +3 more
openaire   +2 more sources

Matrix Stiffness Directs Stemness Signatures in Breast Cancer

Advanced Healthcare Materials, EarlyView.
We built lab‐grown breast cancer models to study how the stiffness of the tumor's surroundings influences cancer behavior. Softer environments encouraged more stem‐like, drug‐resistant cells, while stiffer ones kept cells more differentiated. These findings show that tissue mechanics drive cancer diversity and drug resistance, offering new insights for
Chantal Kopecky, Elvis Pandzic, Sean Porazinski, J Justin Gooding, Kristopher A Kilian   +4 more
wiley   +1 more source