Optical Properties of Blue-Light-Emitting (Ca,Sr)Mg2Si3O9:Eu2+ Phosphor
スポンサーリンク
概要
- 論文の詳細を見る
For light-emitting diode (LED) excitation at 400 nm, the optical properties of a Eu2+-activated CaO–SrO–MgO–SiO2 material system were investigated. All the materials were synthesized by solid state reaction. In particular, (Ca,Sr)Mg2Si3O9:Eu2+, which has the same crystal structure as CaMgSi2O6, was found to be promising as a blue-light-emitting phosphor for near UV LED application. The luminance intensity was optimized by controlling the Eu2+ concentration and the composition of the host lattice. The ratio of calcium ions to strontium ions was a convenient parameter for adjusting the maximum excitation peak to 400 nm, which is favorable for near UV LED excitation. The highest luminance intensity of Ca1-x-ySryMg2Si3O9:Eux2+ under 405 nm excitation was achieved at the Eu2+ concentration of $x=0.01$ and a Sr2+ concentration of $y=0.3$. The luminance intensity of (Ca,Sr)Mg2Si3O9:Eu2+ was found to be superior to that of a commercial blue-light-emitting BaMgAl10O17:Eu2+ phosphor, which is used for near-UV LED excitation.
- 2010-10-25
著者
-
Lee Hyun
School Of Mechanical Engineering Pusan National University
-
Shin Hyun
School of Electrical and Electronic Engineering, Yonsei University, 262 Seongsanno, Seodaemoon-gu, Seoul 120-749, Korea
-
Yoo Jae
School of Chemical Engineering and Materials Science, Chung-Ang University, 221 Huksuk-dong, Dongjak-gu, Seoul 156-756, Korea
-
Kim Kyung
School of Chemical Engineering and Materials Science, Chung-Ang University, Huksuk-dong 221, Dongjak-gu, Seoul 156-756, Korea
-
Kim Kyung
School of Chemical Engineering and Materials Science, Chung-Ang University, 221 Huksuk-dong, Dongjak-gu, Seoul 156-756, Korea
-
Choi Sung
School of Chemical Engineering and Materials Science, Chung-Ang University, Huksuk-dong 221, Dongjak-gu, Seoul 156-756, Korea
-
Lee Hyun
School of Chemical Engineering and Materials Science, Chung-Ang University, 221 Huksuk-dong, Dongjak-gu, Seoul 156-756, Korea
-
Yoo Jae
School of Chemical Engineering and Materials Science, Chung-Ang University, Huksuk-dong 221, Dongjak-gu, Seoul 156-756, Korea
-
Shin Hyun
School of Chemical Engineering and Materials Science, Chung-Ang University, 221 Huksuk-dong, Dongjak-gu, Seoul 156-756, Korea
関連論文
- Dynamic analysis of bubble-driven liquid flows using time-resolved particle image velocimetry and proper orthogonal decomposition techniques
- Anti-stress and Anti-fatigue Effects of Fermented Rice Bran(Food & Nutrition Science)
- Investigation of turbulent flows in a waterjet intake duct using stereoscopic PIV measurements
- F207 COMPARATIVE STUDY ON THE NEAR WAKE OF A CIRCULAR CYLINDER : PIV, LES AND DNS(Complex turbulent flows)
- Dye-sensitized Solar Cells with Halide-bridged Mixed-valence Cu(I)-Cu(II) Coordination Polymers with Hexamethylenedithiocarbamate Ligand
- A301 EFFECT OF TRANSVERSE CONVEX CURVATURE ON THE ONSET OF NUCLEATE BOILING IN CONCENTRIC ANNULI : EXPERIMENTS(Subcooled boiling)
- Evolution of the Counter-Rotating Vortex Structure in a Crossflow Jet
- 516 A Study on Fabrication of PDP Barrier Ribs Using Micro Tooling Process
- F-6-4-3 Computer Integrated System for Virtual Design and Dynamic Performance Test of a Hydraulic Excavator
- Non-Quasi-Static Modeling of Silicon Nanowire Metal–Oxide–Semiconductor Field-Effect Transistor and Its Model Verification up to 1 THz
- Electrical Properties of Yttrium–Indium–Zinc-Oxide Thin Film Transistors Fabricated Using the Sol–Gel Process and Various Yttrium Compositions
- A Novel Amorphous InGaZnO Thin Film Transistor Structure without Source/Drain Layer Deposition
- Development of Counter-Rotating Vortex Pair in a Crossflow Jet
- Optical Transition of Eu3+ Ions in YMg2Al3B6O17
- Measurement of dissolved oxygen concentration field in a microchannel using PtOEP/PS film
- Study on the Valence State of Eu Ions in Sr3Al2O6:Eu Phosphor
- Synthesis and Conducting Properties of a New Mixed-valence Cu(I)-Cu(II) 1-D Coordination Polymer Bridged by Morpholine Dithiocarbamate
- Optical Properties of Blue-Light-Emitting (Ca,Sr)Mg2Si3O9:Eu2+ Phosphor
- Surface Recombination of Crystalline Silicon Substrates Passivated by Atomic-Layer-Deposited AIOx (Special Issue : Solid State Devices and Materials (2))
- Structural Investigation of Hybrid Organic Photovoltaic Devices with Single-Walled Carbon Nanotubes
- Origin of Device Performance Degradation in InGaZnO Thin-Film Transistors after Crystallization
- Design and Characterization of Plasmonic Terahertz Wave Detectors Based on Silicon Field-Effect Transistors
- Failure Analysis of a Phosphor-Converted White Light-Emitting Diode due to the CaS:Eu Phosphor
- Complementary Self-Biased Logics Based on Single-Electron Transistor (SET)/CMOS Hybrid Process
- Novel Extraction Method for Source and Drain Series Resistances in Silicon Nanowire Metal--Oxide--Semiconductor Field-Effect-Transistors Based on Radio-Frequency Analysis
- Measurement of Single-Cell Deformability Using Impedance Analysis on Microfluidic Chip
- Structure Analyses of Room Temperature Deposited AlO
- Investigation of source-to-drain capacitance by DIBL effect of silicon nanowire MOSFETs