Effects of Time Elapsed after Preparation on Photoluminescence Properties of Zinc Sulfide Nanoparticles Doped with Manganese
スポンサーリンク
概要
- 論文の詳細を見る
Manganese-doped zinc sulfide (ZnS:Mn) nanoparticles were synthesized by mixing aqueous solutions of zinc nitrate and manganese nitrate with sodium sulfide. The photoluminescence (PL) of ZnS:Mn nanoparticles (NPs) dispersed in the aqueous solution was observed at 590 nm using extinction light 320 nm in wavelength.When the S and Zn ion concentrations were equal (equimolar condition), the Mn content in NPs increased with the molar ratio Mn/Zn in the feed solution. PL intensity and PL quantum efficiency were proportional to the Mn content in NPs. The particle size of ZnS:Mn increased with the time elapsed after preparation, although the Mn content was constant. NP absorbance at 320 nm increased with elapsed time due to increasing NP size so that PL intensity increased because of increasing absorbed light energy. However, the quantum efficiency remained almost constant. When the S ion concentration exceeded the Zn ion concentration (excess S ion condition), the particle size and absorbance at 320 nm increased with elapsed time, exhibiting trends similar to those observed in NPs prepared under the equimolar condition. On the other hand, the quantum efficiency under an excess S ion condition increased with the elapsed time.
- 社団法人 化学工学会の論文
- 2005-08-01
著者
-
Mori Yasushige
Department Of Chemical Engineering And Materials Science Doshisha University
-
ARAO Yasuyuki
Department of Chemical Engineering and Materials Science, Doshisha University
-
OGIHARA Kotaro
Department of Chemical Engineering and Materials Science, Doshisha University
-
Arao Yasuyuki
Department Of Chemical Engineering And Materials Science Doshisha University
-
Ogihara Kotaro
Department Of Chemical Engineering And Materials Science Doshisha University
関連論文
- Au Nanorod Arrays Tailored for Surface-Enhanced Raman Spectroscopy
- Particle size measurement of standard reference particle candidates and theoretical estimation of uncertainty region
- Adhesion force between particles and substrate in a humid atmosphere studied by atomic force microscopy
- Effects of Time Elapsed after Preparation on Photoluminescence Properties of Zinc Sulfide Nanoparticles Doped with Manganese
- Effect of Kind of Alcohols as Additives on Preparation of Gold Nanoparticles by Sonochemistry
- Colloidal properties of synthetic hectorite clay dispersion measured by dynamic light scattering and small angle X-ray scattering
- Preparation of Gold Nanoparticles in Inorganic Suspension and Clay Gel Solution
- Combined Use of TruFill DCS Detachable Coil System and Guglielmi Detachable Coil for Embolization of Meningioma Fed by Branches of the Cavernous Internal Carotid Artery : Technical Case Report
- EFFECT OF FREQUENCY IN A.C. HIGH VOLTAGE ON COALESCENCE OF WATER-IN-OIL EMULSION STABILIZED WITH SORBITAN MONOOLEATE TYPE NONIONIC SURFACTANT
- Particle Deposition in Evaporating Droplets of Polystyrene Latex Suspension on Hydrophilic and Hydrophobic Substrates
- Comparison of Electrochemical Impedance Spectroscopy between Illumination and Dark Conditions
- EFFECTS OF CORONA PRECHARGER ON PERFORMANCE OF FABRIC FILTER
- Stripe and Network Formation of Particle Arrays Fabricated by Convective Self-assembly
- Extraction equilibrium of Ce(III), Pr(III) and Nd(III) with acidic organophosphorus extractants.
- Extraction rate of praseodymium and neodymium with phosphonic acid mono ester.
- The analytical optimal design of a fabric filter system.