scholarly journals Size confinement effect in graphene grown on 6H-SiC (0001) substrate

Carbon ◽  
2015 ◽  
Vol 86 ◽  
pp. 139-145 ◽  
Author(s):  
V.M. Mikoushkin ◽  
V.V. Shnitov ◽  
A.A. Lebedev ◽  
S.P. Lebedev ◽  
S.Yu. Nikonov ◽  
...  
Keyword(s):  
Confinement Effect ◽  
Size Confinement

Cell-size confinement effect on protein diffusion in crowded poly(ethylene)glycol solution

2018 ◽  
Vol 20 (13) ◽  
pp. 8842-8847 ◽  
Author(s):  
Chiho Watanabe ◽  
Miho Yanagisawa
Keyword(s):  
Ethylene Glycol ◽  
Cell Size ◽  
Molecular Diffusion ◽  
Macromolecular Crowding ◽  
Confinement Effect ◽  
Protein Diffusion ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene ◽  
Glycol Solution ◽  
Size Confinement

Micrometric membrane confinements and macromolecular crowding synergistically regulate molecular diffusion.

The Size Confinement Effect for Eu3+ Concentration Quenching and Energy Transfer in YVO4 Nanocrystal

2016 ◽  
Vol 16 (4) ◽  
pp. 3772-3776 ◽  
Author(s):  
Qingyu Meng ◽  
Jiaqi Dai ◽  
Wenjun Sun ◽  
Changwen Wang
Keyword(s):  
Energy Transfer ◽  
Exchange Interaction ◽  
Electric Dipole ◽  
Dipole Interaction ◽  
Concentration Quenching ◽  
Confinement Effect ◽  
Precipitation Method ◽  
Range Interaction ◽  
Operating Range ◽  
Size Confinement

YVO4:Eu3+ nanocrystal powders (∼30 nm) with different doping concentrations were prepared using a precipitation method. Bulky powders (∼500 nm) were obtained by annealing the nanopowders at high temperature. The concentration quenching of luminescent centers and energy transfer in YVO4: Eu3+ powders were investigated. It was found that quenching concentration for Eu3+ 5D0→7F2 transition emission in nanopowders is distinctly higher than that in bulk powders. The type of energy transfer that caused concentration quenching was identified to be electric dipole–dipole interaction in bulk powders and exchange interaction in nanopowders. The electric dipole–dipole interaction is a long-range interaction (operating range of several nanometers). The size confinement effect of boundary in nanoparticles has obvious inhibitory effect on electric dipole–dipole interaction, and hardly affect the exchange interaction which is a short-range interaction (operating range several angstroms). The electric dipole–dipole interaction is restrained by particle boundary in nanopowders. So energy transfer of Eu3+ ions in nanomaterials is dominated by exchange interaction, and quenching concentration of nanomaterials is higher than in bulky materials.

Theoretical study of the size confinement effect in linear π-conjugated oligomers

2007 ◽  
Vol 342 (1-3) ◽  
pp. 191-200 ◽  
Author(s):  
Mariusz Bednarz ◽  
Peter Reineker ◽  
Elena Mena-Osteritz ◽  
Peter Bäuerle
Keyword(s):  
Theoretical Study ◽  
Confinement Effect ◽  
Conjugated Oligomers ◽  
Size Confinement

scholarly journals Photocatalytic and Magnetic Behaviors Observed in BiFeO3Nanofibers by Electrospinning

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Xuehui Zhang ◽  
Haiyang Liu ◽  
Bin Zheng ◽  
Yuanhua Lin ◽  
Deping Liu ◽  
...  
Keyword(s):  
Visible Light ◽  
Band Gap ◽  
Room Temperature ◽  
Photocatalytic Property ◽  
Magnetic Ordering ◽  
Confinement Effect ◽  
Visible Light Active ◽  
Perovskite Type ◽  
Size Confinement ◽  
Weak Ferromagnetic

Perovskite-type BiFeO3nanofibers with wave nodes-like morphology were prepared by electrospinning. The nanofibers show a highly enhanced visible-light-active photocatalytic property. The results also showed that the diameter could affect the band gap and photocatalytic performances of nanofibers. Additionally, weak ferromagnetic behaviors can be observed at room temperature, which should be correlated to the size-confinement effect on the magnetic ordering of BiFeO3structure.

Observations on size confinement effect in B-C-N nanoparticles embedded in mesoporous silica channels

2014 ◽  
Vol 105 (1) ◽  
pp. 014106 ◽  
Author(s):  
Neeti Tripathi ◽  
Masaru Yamashita ◽  
Takeyuki Uchida ◽  
Tomoko Akai
Keyword(s):  
Mesoporous Silica ◽  
Confinement Effect ◽  
Size Confinement

Tunable Quantum Confinement Effect on Non-volatile Thin Film Polymer Memory Device

2008 ◽  
Author(s):  
Augustin J. Hong ◽  
Kang L. Wang ◽  
Wei Lek Kwan ◽  
Yang Yang ◽  
Dayanara Parra ◽  
...  
Keyword(s):  
Thin Film ◽  
Quantum Confinement ◽  
Quantum Confinement Effect ◽  
Memory Device ◽  
Confinement Effect ◽  
Film Polymer ◽  
Polymer Memory

Defects-induced broadband photodetector based on WS2/pyramid Si 2D/3D mixed-dimensional heterojunction with light confinement effect

Nanoscale ◽  
2021 ◽  
Author(s):  
Di Wu ◽  
Chenguang Guo ◽  
Zhaoyang Wang ◽  
Xiaoyan Ren ◽  
Yong-Zhi Tian ◽  
...  
Keyword(s):  
Confinement Effect ◽  
Vital Importance ◽  
Light Confinement

Broadband photodetection is of vital importance for both civil and technological applications. The widespread use of commercial photodiodes based on traditional semiconductors (e.g. GaN, Si, and InGaAs) is limited to...

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