Tuning the magnetization dynamics of silica-coated Fe3O4 core-shell nanoparticles by shell thickness control

2008 ◽  
Vol 103 (7) ◽  
pp. 07D501 ◽  
Author(s):  
K. Mohan Kant ◽  
K. Sethupathi ◽  
M. S. Ramachandra Rao
2021 ◽  
Author(s):  
Mohd Imran ◽  
Nasser Zouli ◽  
Tansir Ahamad ◽  
Saad M. Alshehri ◽  
Mohammed Rehaan Chandan ◽  
...  

Ferrofluids prepared by dispersing superparamagnetic Fe3O4@C core–shell nanoparticles in water exhibited exceptional enhancement in thermal conductivity without an external magnetic field.


Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2364
Author(s):  
Zhiyuan He ◽  
Chi Zhang ◽  
Rangwei Meng ◽  
Xuanhui Luo ◽  
Mengwei Chen ◽  
...  

In this paper, Ag@SiO2 core-shell nanoparticles (NPs) with different shell thicknesses were prepared experimentally and introduced into the photosensitive layer of mesoscopic hole-conductor-free perovskite solar cells (PSCs) based on carbon counter electrodes. By combining simulation and experiments, the influences of different shell thickness Ag@SiO2 core-shell nanoparticles on the photoelectric properties of the PSCs were studied. The results show that, when the shell thickness of 0.1 wt% Ag@SiO2 core-shell nanoparticles is 5 nm, power conversion efficiency is improved from 13.13% to 15.25%, achieving a 16% enhancement. Through the measurement of the relevant parameters of the obtained perovskite film, we found that this gain not only comes from the increase in current density that scholars generally think, but also comes from the improvement of the film quality. Like current gain, this gain is related to the different shell thickness of Ag@SiO2 core-shell nanoparticles. Our research provides a new direction for studying the influence mechanism of Ag@SiO2 core-shell nanoparticles in perovskite solar cells.


2009 ◽  
Vol 94 (3) ◽  
pp. 032903 ◽  
Author(s):  
Y. S. Koo ◽  
K. M. Song ◽  
N. Hur ◽  
J. H. Jung ◽  
T.-H. Jang ◽  
...  

2011 ◽  
Vol 109 (8) ◽  
pp. 086102
Author(s):  
Yunpeng Zhang ◽  
Hui Xing ◽  
Narayan Poudyal ◽  
Vikas Nandwana ◽  
Chuan-bing Rong ◽  
...  

2020 ◽  
Vol 240 ◽  
pp. 122144 ◽  
Author(s):  
Zhiyang Li ◽  
Bridgid Wanjala ◽  
George Cernigliaro ◽  
Dan Nawrocki ◽  
Zhiyong Gu

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