Facile synthesis and luminescence properties of monodisperse lutetium oxide nanostructures with adjustable particle sizes

CrystEngComm ◽  
2021 ◽  
Vol 23 (36) ◽  
pp. 6388-6399
Author(s):  
Jie Tang ◽  
Cuimiao Zhang ◽  
Xiaomeng Lou ◽  
Ziman Yu ◽  
Xiaomeng Jia ◽  
...  

A variety of spherical lutetium compounds with narrow size distribution and adjustable diameters have been synthesized. The as-obtained Ln3+ doped phosphors and LED devices exhibit characteristic DC or UC emissions corresponding to the Ln3+ ions.

RSC Advances ◽  
2015 ◽  
Vol 5 (11) ◽  
pp. 8345-8350 ◽  
Author(s):  
Jung Sang Cho ◽  
Kyeong Youl Jung ◽  
Yun Chan Kang

Two-step spray drying using a commercially available spray dryer was carried out to prepare YAG:Ce3+ phosphor particles. The two-step spray-drying process was a potential method for producing YAG:Ce3+ phosphor particles with spherical shape, narrow size distribution, and good luminescence properties.


2014 ◽  
Vol 938 ◽  
pp. 311-315
Author(s):  
Manmohan Singh Kurrey ◽  
Bhoopendra Dhar Diwan

In this paper we have reported excellent luminescence properties of novel nanophosphors synthesized through solgel method with narrow size distribution. The size and morphology of the prepared ZnO nanophosphors has been confirmed through XRD and SEM. We have investigated their photo-luminescence (PL) intensity as a function of wavelength. We have prepared ZnO nanophosphor of size 6 nm. It is observed two different emission peaks near 375 nm in the ultraviolet (UV) and near 525 nm in the visible region. The prepared ZnO nanophosphor has enough potential for optoelectronic applications. Keywords: Dosimetry; Thermo-luminescence; Zinc oxide; Nanophosphors.


1984 ◽  
Vol 75 ◽  
pp. 607-613 ◽  
Author(s):  
Kevin D. Pang ◽  
Charles C. Voge ◽  
Jack W. Rhoads

Abstract.All observed optical and infrared properties of Saturn's E-ring can be explained in terms of Mie scattering by a narrow size distribution of ice spheres of 2 - 2.5 micron diameter. The spherical shape of the ring particles and their narrow size distribution imply a molten (possibly volcanic) origin on Enceladus. The E-ring consists of many layers, possibly stratified by electrostatic levitation.


Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1003
Author(s):  
Pantharee Kongsat ◽  
Sakprayut Sinthupinyo ◽  
Edgar A. O’Rear ◽  
Thirawudh Pongprayoon

Several types of hematite nanoparticles (α-Fe2O3) have been investigated for their effects on the structure and properties of fly ash (FA) blended cement. All synthesized nanoparticles were found to be of spherical shape, but of different particle sizes ranging from 10 to 195 nm depending on the surfactant used in their preparation. The cement hydration with time showed 1.0% α-Fe2O3 nanoparticles are effective accelerators for FA blended cement. Moreover, adding α-Fe2O3 nanoparticles in FA blended cement enhanced the compressive strength and workability of cement. Nanoparticle size and size distribution were important for optimal filling of various size of pores within the cement structure.


2017 ◽  
Vol 28 (5) ◽  
pp. 568-568
Author(s):  
Sarit Cohen ◽  
Inna Laitman ◽  
Tammy Lublin Tennenbaum ◽  
Michal Natan ◽  
Ehud Banin ◽  
...  

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