Results 71 to 80 of about 217,541 (289)
MicromachinesThe migration behavior of electron and hole pairs determines both photoluminescence and photocatalytic activity, which are two distinct properties of semiconductor materials.
Man Zhang +3 more
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Upconversion and infrared emission of Er3+ /Yb3+ co-doped SiO2 -Gd2O3 obtained by sol-gel process [PDF]
Processing and Application of Ceramics, 2015 This work reports on the preparation of materials based on Yb3+ /Er3+ co-doped SiO2-Gd2O3 via sol-gel process. The 0.4 mol% of Er3+ ions was fixed and the amount of Yb3+ ions changed as 1.8, 5 and 9 mol% in order to evaluate the photoluminescence ...
Leonardo A. Rocha +4 more
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Advanced Functional Materials, EarlyView.DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen +3 more
wiley +1 more source
The Effect of Purcell Cavities on the Lifetime of Thermally Activated Delayed Fluorescent Emitters
Advanced Functional Materials, EarlyView.A pressing challenge to OLED displays and lighting is to balance high efficiency and long operational lifetime in the deep blue spectrum. The Purcell effect can reduce the triplet density and hence the probability for destructive energy‐driven triplet annihilation events that limit the OLED lifetime. Here we study of the Purcell effect on two different
Sritoma Paul +4 more
wiley +1 more source
Spektra: Jurnal Fisika dan Aplikasinya, 2018 Abstrak Telah dilakukan pencampuran nanopartikel emas dengan kuantum dot CdSe 618. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh penambahan nanopartikel emas terhadap intensitas emisi dan waktu peluruhan fotoluminesensi kuantum dot CdSe ...
Muhammad Lawrence Pattersons +1 more
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From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts
Advanced Functional Materials, EarlyView.Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado +6 more
wiley +1 more source
Effective red-orange emitting CaMgPO4Cl:Sm3+ halophosphate phosphor
Results in Physics, 2016 Red-orange Sm3+ doped in CaMgPO4Cl halophosphate phosphor excited at 405 nm was prepared by combustion synthesis. The structure and properties were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and photoluminescence (PL ...
P.K. Naktode, K.N. Shinde, N.S. Kokode
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New Journal of Physics, 2020 By using localization techniques, we demonstrated that the morphology of a 2D material in three dimensions can be optically obtained with nanometer precision in z -axis.
En-Xiang Chen +8 more
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Advanced Photonics Research, 2022 The characterization of a scintillating metal organic framework (MOF) is not straightforward, mainly due to the small size and low density of the material. In this context, we present herein a generic method to give an easy access to the determination of
Vincent Villemot +5 more
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Exciton-phonon scattering and photo-excitation dynamics in J-aggregate microcavities
, 2008 We have developed a model accounting for the photo-excitation dynamics and the photoluminescence of strongly coupled J-aggregate microcavities. Our model is based on a description of the J-aggregate film as a disordered Frenkel exciton system in which ...
A. L. Ivanov +3 more
core +1 more source