Role of energy loss-range profile of heavy ions in tailoring the optical properties of polycarbonate

2021 ◽  
Vol 121 ◽  
pp. 111617
Author(s):  
Preeti Chhokkar ◽  
V. Kumar ◽  
Parveen K. Goyal ◽  
Shyam Kumar ◽  
A.K. Tomar ◽  
...  
Keyword(s):  
Optical Properties ◽  
Energy Loss ◽  
Heavy Ions ◽  
Range Profile ◽  
Loss Range

Measuring and Tuning TEM Energy Filter Performance

1998 ◽  
Vol 4 (S2) ◽  
pp. 388-389
Author(s):  
H. Brink ◽  
G. Kothleitner ◽  
M.K. Kundmann
Keyword(s):  
Optical Properties ◽  
Energy Loss ◽  
Chromatic Aberration ◽  
Field Of View ◽  
Performance Criteria ◽  
Geometric Distortion ◽  
Filter Performance ◽  
Common Concern ◽  
Image Pixels ◽  
Loss Range

Although, critical performance criteria of TEM objective lenses, such as spherical and chromatic aberration and, more recently, 3-fold astigmatism, are of common concern, the important properties of TEM energy filters are less well-known and not often measured or quoted. In an effort to bring these to light, we have developed methods for automatically measuring and tuning three optical properties important to practical filter performance: non-isochromaticity, geometric distortion, and non-achromaticity.A filter is perfectly isochromatic if the range of electron energies that contribute to an energy-filtered image is the same across all image pixels. In practice, energy filters display some degree of nonisochromaticity, i.e. the energy-loss range forming the periphery of the image differs by anywhere from a fraction of an eV to as much as few eV from that forming the center of the field of view.

Sputtering of metals by heavy ions in the inelastic energy loss range

Vacuum ◽  
2002 ◽  
Vol 66 (2) ◽  
pp. 133-136 ◽  
Author(s):  
Yu.N Cheblukov ◽  
A.Yu Didyk ◽  
A Halil ◽  
V.K Semina ◽  
A.E Stepanov ◽  
...  
Keyword(s):  
Energy Loss ◽  
Heavy Ions ◽  
Inelastic Energy Loss ◽  
Loss Range

Role of electron energy loss in modification of C60 thin films by swift heavy ions

2008 ◽  
Vol 104 (5) ◽  
pp. 054306 ◽  
Author(s):  
Navdeep Bajwa ◽  
Alka Ingale ◽  
D. K. Avasthi ◽  
Ravi Kumar ◽  
A. Tripathi ◽  
...  
Keyword(s):  
Thin Films ◽  
Energy Loss ◽  
Electron Energy ◽  
Heavy Ions ◽  
Swift Heavy Ions ◽  
Electron Energy Loss

scholarly journals Role of the Anilinium Ion on the Selective Polymerization of Anilinium 2-Acrylamide-2-methyl-1-propanesulfonate

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2349
Author(s):  
Alain Salvador Conejo-Dávila ◽  
Marco Armando Moya-Quevedo ◽  
David Chávez-Flores ◽  
Alejandro Vega-Rios ◽  
Erasto Armando Zaragoza-Contreras
Keyword(s):  
Cyclic Voltammetry ◽  
Optical Properties ◽  
Thermal Properties ◽  
Free Radical ◽  
1H Nmr ◽  
Molecular Interactions ◽  
13C Nmr ◽  
Oxidative Polymerization ◽  
Cyclic Voltammetry Analysis

The development of anilinium 2-acrylamide-2-methyl-1-propanesulfonate (Ani-AMPS) monomer, confirmed by 1H NMR, 13C NMR, and FTIR, is systematically studied. Ani-AMPS contains two polymerizable functional groups, so it was submitted to selective polymerization either by free-radical or oxidative polymerization. Therefore, poly(anilinium 2-acrylamide-2-methyl-1-propanesulfonic) [Poly(Ani-AMPS)] and polyaniline doped with 2-acrylamide-2-methyl-1-propanesulfonic acid [PAni-AMPS] can be obtained. First, the acrylamide polymer, poly(Ani-AMPS), favored the π-stacking of the anilinium group produced by the inter- and intra-molecular interactions and was studied utilizing 1H NMR, 13C NMR, FTIR, and UV-Vis-NIR. Furthermore, poly(Ani-AMPS) fluorescence shows quenching in the presence of Fe2+ and Fe3+ in the emission spectrum at 347 nm. In contrast, the typical behavior of polyaniline is observed in the cyclic voltammetry analysis for PAni-AMPS. The optical properties also show a significant change at pH 4.4. The PAni-AMPS structure was corroborated through FTIR, while the thermal properties and morphology were analyzed utilizing TGA, DSC (except PAni-AMPS), and FESEM.

scholarly journals Effect of dopant concentration and the role of ZnS shell on optical properties of Sm3+ doped CdS quantum dots

RSC Advances ◽  
2021 ◽  
Vol 11 (14) ◽  
pp. 7961-7971
Author(s):  
N. D. Vinh ◽  
P. M. Tan ◽  
P. V. Do ◽  
S. Bharti ◽  
V. X. Hoa ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Dopant Concentration ◽  
Core Shell ◽  
Cds Quantum Dots ◽  
Cds Qds

The role of samarium (Sm) dopant on the structural, morphological, and optical properties of CdS QDs and CdS/ZnS core/shell QDs was methodically reported.

Role of non-magnetic dopants on the room temperature ferromagnetism and optical properties of BaSnO3 perovskite

2020 ◽  
Vol 281 ◽  
pp. 121028 ◽  
Author(s):  
Saad Mabrouk Yakout ◽  
Hanan A. Mousa ◽  
Hala T. Handal ◽  
Walid Sharmoukh
Keyword(s):  
Optical Properties ◽  
Room Temperature ◽  
Room Temperature Ferromagnetism
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