Facile Synthesis of CePO4 Nanowires Attached to CeO2 Octahedral Micrometer Crystals and Their Enhanced Photoluminescence Properties

2008 ◽  
Vol 112 (42) ◽  
pp. 16452-16456 ◽  
Author(s):  
Guicun Li ◽  
Kun Chao ◽  
Hongrui Peng ◽  
Kezheng Chen ◽  
Zhikun Zhang
Keyword(s):  
Photoluminescence Properties ◽  
Facile Synthesis ◽  
Enhanced Photoluminescence

Scheelite (CaWO4)-type microphosphors: Facile synthesis, structural characterization and photoluminescence properties

2016 ◽  
Vol 30 (32n33) ◽  
pp. 1650400 ◽  
Author(s):  
Yuanyuan Han ◽  
Dan Wang ◽  
Danyang Liang ◽  
Shiqi Wang ◽  
Guoxin Lu ◽  
...  
Keyword(s):  
Luminescence Decay ◽  
Precipitation Method ◽  
Ammonium Bromide ◽  
Photoluminescence Properties ◽  
Facile Synthesis ◽  
Cetyltrimethyl Ammonium Bromide ◽  
Broad Emission ◽  
Transition Formula ◽  
Cetyltrimethyl Ammonium ◽  
Uv Excitation

Scheelite (CaWO4)-type microphosphors were synthesized by the precipitation method assisted with cetyltrimethyl ammonium bromide (CTAB). All compounds crystallized in the tetragonal structure with space group [Formula: see text] (No. 88). FE-SEM micrographs illustrate the spherical-like morphologies and rough surface. PL spectra indicate the broad emission peak maximum at 613 nm under UV excitation. Luminescence decay curves monitored by [Formula: see text] transition ([Formula: see text] nm) of Eu[Formula: see text] in doped CaWO4 are presented, the curves exhibit a single-exponential feature and the lifetime for doped CaWO4 is 0.61 ms.

Enhanced Photoluminescence of YInGe2O7:Eu3+,Li+ Phosphor Prepared Using the Solid-State Method

2013 ◽  
Vol 684 ◽  
pp. 274-278
Author(s):  
Huang Yu Chen ◽  
Ru Yuan Yang ◽  
Shoou Jinn Chang
Keyword(s):  
Solid State ◽  
Red Light ◽  
Broad Band ◽  
Lithium Carbonate ◽  
Ion Concentration ◽  
Photoluminescence Intensity ◽  
Photoluminescence Properties ◽  
Solid State Method ◽  
Enhanced Photoluminescence ◽  
Transfer State

A Eu3+ activated YInGe2O7phosphor was synthesized by solid-state reaction and lithium carbonate was added to change the morphology and photoluminescence properties. Scanning electron microscopy showed large particle size and necking shape were obtained as the concentrations of Li+ ions increase. In the PL studies, the excitation spectrum of YInGe2O7:Eu3+ phosphors exhibited a broad band in the UV region centered at about 272 nm attributed to charge transfer state (CTS) band, which has a little shift after Li+ ion was added. As the Li+ ion concentration increased, the photoluminescence intensity of the red emission at 620 nm of Eu3+ ions was enhanced, and the optimized concentration of of added Li+ ion is 0.05. The results showed that addition of Li+ ion allows YInGe2O7:Eu3+ phosphors emitting relatively pure red light.

Pyramid-Shaped Si/Ge Superlattice Quantum Dots with Enhanced Photoluminescence Properties

2006 ◽  
Vol 18 (3) ◽  
pp. 367-370 ◽  
Author(s):  
H.-C. Chen ◽  
C.-W. Wang ◽  
S.-W. Lee ◽  
L.-J. Chen
Keyword(s):  
Quantum Dots ◽  
Photoluminescence Properties ◽  
Enhanced Photoluminescence

Facile synthesis of S, N co-doped carbon dots and investigation of their photoluminescence properties

2015 ◽  
Vol 17 (31) ◽  
pp. 20154-20159 ◽  
Author(s):  
Yue Zhang ◽  
Junhui He
Keyword(s):  
Carbon Dots ◽  
Photoluminescence Properties ◽  
Facile Synthesis ◽  
Photoluminescence Mechanism ◽  
Doped Carbon Dots ◽  
Co Doped

Carbon dots with stable down and up conversion fluorescence were synthesized and a unique photoluminescence mechanism is proposed.

Facile synthesis of α‐Si 3 N 4 nanoneedles and their photoluminescence properties

2019 ◽  
Vol 16 (6) ◽  
pp. 2373-2379 ◽  
Author(s):  
Xiulin Shen ◽  
Haitao Liu ◽  
Xianmei Zhang ◽  
Zhaohui Huang ◽  
Yangai Liu ◽  
...  
Keyword(s):  
Photoluminescence Properties ◽  
Facile Synthesis

Facile synthesis of CdZnS QDs: Effects of different capping agents on the photoluminescence properties

2018 ◽  
Vol 81 ◽  
pp. 113-117 ◽  
Author(s):  
Muhammad Masab ◽  
Haji Muhammad ◽  
Faheem Shah ◽  
Muhammad Yasir ◽  
Muddasir Hanif
Keyword(s):  
Photoluminescence Properties ◽  
Facile Synthesis ◽  
Capping Agents
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