Results 141 to 150 of about 229,927 (317)
Advances in Semiconductor Lasers Based on Parity–Time Symmetry
NanomaterialsSemiconductor lasers, characterized by their high efficiency, small size, low weight, rich wavelength options, and direct electrical drive, have found widespread application in many fields, including military defense, medical aesthetics, industrial ...
Hongbo Sha +16 more
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Investigation of the mechanisms of upconversion luminescence in Ho3+ doped CaF2 crystals and ceramics upon excitation of 5I7 level [PDF]
, 2015 © 2015 Elsevier B.V. All rights reserved. The mechanisms of upconversion luminescence of CaF2:Ho crystals and ceramics from 5F3, 5S2(5F4), 5F5 and 5I6 levels upon excitation of 5I7 level of Ho3+ ions were investigated.
Chabushkin A. +4 more
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Fast luminescence decay processes of photoexcited Eu3+ in CaS:Eu,La
, 2019 Decay dynamics of photoexcited Eu ions in CaS:Eu and in CaS:Eu,La were studied by employing time-resolved luminescence spectroscopy. For the first time, subnanosecond decay process of Eu3+ luminescence was observed in solid matrices.
김성진, 이민영
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Proceedings of the National Academy of Sciences, 1930 E L, Nichols, F G, Wick
openaire +2 more sources
Phase Engineering of Atomically Precise Nanoclusters (APNCs) of Gold and Beyond
Advanced Materials, EarlyView.Engineering the structural phase of materials is of paramount importance for both fundamental research and practical applications. In this Review, we summarize the recent progress in controlling the phases of atomically precise nanoclusters (APNCs) of gold, silver and copper, as well as bimetallic systems. The phase‐enabled material properties of APNCs
Yitong Wang +4 more
wiley +1 more source
Advancements in transfer printing techniques and their applications in photonic integrated circuits
Light: Science & ApplicationsTransfer printing is a powerful and versatile integration method that is attracting increasing attention as regards both scientific research and industrial manufacturing.
Can Yu +11 more
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In Situ Regenerative Adduct Assisted p‐Type Doping of Organic Semiconductor
Advanced Materials, EarlyView.An in situ regenerative adduct‐assisted (IRAA) doping strategy is introduced for p‐type doping of organic semiconductors. A regenerating adduct serves as the dopant, enabling highly efficient doping with a choice of counterions. The generality of this approach provides a scalable route to dope a wide range of hole‐transport materials with high thermal ...
Brijesh K. Patel +8 more
wiley +1 more source
Advanced Materials, EarlyView.A nanocluster–gel platform is developed to synchronously integrate tunable luminescence and shape morphing under a single stimulus, with emission programmability encoded through cluster size modulation (Au10 → Au18). Solvent‐induced shape–optical transitions are visualized in a lotus‐shaped gel that dynamically folds and dims, enabling rapid (< 5 s ...
Hongbin Lin +9 more
wiley +1 more source
Second‐Harmonic Hyper‐Mie Optical Activity Enables Closed‐Loop Chiral Photochemistry
Advanced Materials, EarlyView.Nonlinear chiral photochemistry is demonstrated in CdTe/CdO nanohelices, where circularly polarized infrared light both drives and tracks photo‐oxidation via second‐harmonic scattering. This closed‐loop process reveals real‐time structural evolution, including shell fracturing and core exposure, accompanied by a transition from hyper‐Mie to hyper ...
Hoyeon Choi +6 more
wiley +1 more source
Unexpected luminescence of Cr5+ and Cr3+ ions in ZrSiO4 zircon crystals [PDF]
, 2000 Luminescence, decay-times and EPR spectroscopy of Cr-doped ZrSiO4 show the presence of both Cr3+ and Cr5+ active centers, which can be connected with Zr4+ and Si4+ adjacent two-cation replacement.
Reisfeld R. +6 more
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