Luminescent Properties of a Silicone-Carbazolyl Polyfluorene Hybrid Material for Device Applications

2010 ◽  
Vol 296 (1) ◽  
pp. 170-175
Author(s):  
Tatiana D. Martins ◽  
Ines V. P. Yoshida ◽  
Teresa D. Z. Atvars
The Analyst ◽  
2021 ◽  
Author(s):  
Jie Min ◽  
Xiang-Long Qu ◽  
Bing Yan

By means of post-synthetic treatment on the UiO-66 derivative with -SO3H, a novel luminescent hybrid material named Tb3+@UiO-66-SO3H has been prepared simply and efficiently. Given its wonderful luminescent properties like...


RSC Advances ◽  
2015 ◽  
Vol 5 (22) ◽  
pp. 17343-17353 ◽  
Author(s):  
Yang Song ◽  
Rui-Qing Fan ◽  
Hui-Jie Zhang ◽  
Zhi-Wei Liu ◽  
Xue-Tao Wang ◽  
...  

Preparation, characterization, crystal structure and different luminescent properties of Ag(i)/Cu(i) coordination polymers: stable blue emission, thermochromism and PMMA-doped hybrid material.


2015 ◽  
Vol 152 ◽  
pp. 170-172 ◽  
Author(s):  
Yajuan Li ◽  
Xiaoting Ge ◽  
Xuelei Pang ◽  
Xudong Yu ◽  
Xiaoli Zhen ◽  
...  

2021 ◽  
Author(s):  
Ying Li ◽  
Dan Liu ◽  
Ya-Qi Wang ◽  
Fang-fang Wang ◽  
Hanxun Qiu

In this work, we develop a novel flexible method to construct a lanthanide dual-emitting ratiometric fluorescence nanoprobe with excellent luminescence properties and significantly selectivity for the detection of copper ions,...


2020 ◽  
Vol 31 (14) ◽  
pp. 11589-11598
Author(s):  
S. Sarathkumar ◽  
Sk. Munimasthani ◽  
U. S. Udayachandran Thampy ◽  
R. V. S. S. N. Ravikumar

2020 ◽  
Author(s):  
Xin-Yue Lou ◽  
Nan Song ◽  
Ying-Wei Yang

Abstract Tunable luminescent materials are becoming more and more important owing to their broad application potential in various fields. Here we construct a pillar[5]arene-based hybrid material with stimuli-responsive luminescent properties and ion sensing abilities from a pyridine-modified conjugated pillar[5]arene and a planar chromophore oligo(phenylenevinylene) upon coordination of Cd (II) metal cores. This new material not only shows an optimized luminescence due to the minimized π-π stacking and efficient charge transfer (CT) properties benefitting from the existence of pillar[5]arene rings, but also exhibits tunable multicolor emission induced by different external stimuli including solvent, ions, and acid, indicating great application potential as a fluorescent sensory material especially for Fe3+. With this pillar[5]arene-based dual-ligand hybrid material, valid optimization and regulation on the fluorescence of the original chromophore have been achieved, which demonstrates a plausible strategy for the design of tunable solid-state luminescent materials and also a prototypical model for the effective regulation of fluorescent properties of planar π systems using synthetic macrocycles-based building blocks.


Author(s):  
Joanna L. Batstone

Interest in II-VI semiconductors centres around optoelectronic device applications. The wide band gap II-VI semiconductors such as ZnS, ZnSe and ZnTe have been used in lasers and electroluminescent displays yielding room temperature blue luminescence. The narrow gap II-VI semiconductors such as CdTe and HgxCd1-x Te are currently used for infrared detectors, where the band gap can be varied continuously by changing the alloy composition x.Two major sources of precipitation can be identified in II-VI materials; (i) dopant introduction leading to local variations in concentration and subsequent precipitation and (ii) Te precipitation in ZnTe, CdTe and HgCdTe due to native point defects which arise from problems associated with stoichiometry control during crystal growth. Precipitation is observed in both bulk crystal growth and epitaxial growth and is frequently associated with segregation and precipitation at dislocations and grain boundaries. Precipitation has been observed using transmission electron microscopy (TEM) which is sensitive to local strain fields around inclusions.


Author(s):  
Karren L. More

Beta-SiC is an ideal candidate material for use in semiconductor device applications. Currently, monocrystalline β-SiC thin films are epitaxially grown on {100} Si substrates by chemical vapor deposition (CVD). These films, however, contain a high density of defects such as stacking faults, microtwins, and antiphase boundaries (APBs) as a result of the 20% lattice mismatch across the growth interface and an 8% difference in thermal expansion coefficients between Si and SiC. An ideal substrate material for the growth of β-SiC is α-SiC. Unfortunately, high purity, bulk α-SiC single crystals are very difficult to grow. The major source of SiC suitable for use as a substrate material is the random growth of {0001} 6H α-SiC crystals in an Acheson furnace used to make SiC grit for abrasive applications. To prepare clean, atomically smooth surfaces, the substrates are oxidized at 1473 K in flowing 02 for 1.5 h which removes ∽50 nm of the as-grown surface. The natural {0001} surface can terminate as either a Si (0001) layer or as a C (0001) layer.


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