Electron-Induced Reactions of Ru(CO)4I2: Gas Phase, Surface, and Electron Beam-Induced Deposition

2020 ◽  
Vol 124 (19) ◽  
pp. 10593-10604 ◽  
Author(s):  
Rachel M. Thorman ◽  
Pernille A. Jensen ◽  
Jo-Chi Yu ◽  
Scott J. Matsuda ◽  
Lisa McElwee-White ◽  
...  
2018 ◽  
Vol 20 (8) ◽  
pp. 5644-5656 ◽  
Author(s):  
Rachel M. Thorman ◽  
Ilyas Unlu ◽  
Kelsea Johnson ◽  
Ragnar Bjornsson ◽  
Lisa McElwee-White ◽  
...  

Low energy electron-induced decomposition of a potential bimetallic nanofabrication precursor is studied in gas-phase, at surfaces and by quantum chemical calculations.


Author(s):  
Richard E. Hartman ◽  
Roberta S. Hartman ◽  
Peter L. Ramos

The action of water and the electron beam on organic specimens in the electron microscope results in the removal of oxidizable material (primarily hydrogen and carbon) by reactions similar to the water gas reaction .which has the form:The energy required to force the reaction to the right is supplied by the interaction of the electron beam with the specimen.The mass of water striking the specimen is given by:where u = gH2O/cm2 sec, PH2O = partial pressure of water in Torr, & T = absolute temperature of the gas phase. If it is assumed that mass is removed from the specimen by a reaction approximated by (1) and that the specimen is uniformly thinned by the reaction, then the thinning rate in A/ min iswhere x = thickness of the specimen in A, t = time in minutes, & E = efficiency (the fraction of the water striking the specimen which reacts with it).


Nanomaterials ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 163
Author(s):  
Iryna Zelenina ◽  
Igor Veremchuk ◽  
Yuri Grin ◽  
Paul Simon

Nano-scaled thermoelectric materials attract significant interest due to their improved physical properties as compared to bulk materials. Well-shaped nanoparticles such as nano-bars and nano-cubes were observed in the known thermoelectric material PbTe. Their extended two-dimensional nano-layer arrangements form directly in situ through electron-beam treatment in the transmission electron microscope. The experiments show the atomistic depletion mechanism of the initial crystal and the recrystallization of PbTe nanoparticles out of the microparticles due to the local atomic-scale transport via the gas phase beyond a threshold current density of the beam.


2014 ◽  
Vol 23 (8) ◽  
pp. 088111 ◽  
Author(s):  
Jing-Yue Fang ◽  
Shi-Qiao Qin ◽  
Xue-Ao Zhang ◽  
Dong-Qing Liu ◽  
Sheng-Li Chang

2018 ◽  
Vol 337 ◽  
pp. 446-454 ◽  
Author(s):  
Shoufeng Tang ◽  
Deling Yuan ◽  
Yandi Rao ◽  
Na Li ◽  
Jinbang Qi ◽  
...  

2008 ◽  
Vol 14 (S2) ◽  
pp. 242-243
Author(s):  
P Kruit ◽  
W van Dorp ◽  
K Hagen ◽  
PA Crozier

Extended abstract of a paper presented at Microscopy and Microanalysis 2008 in Albuquerque, New Mexico, USA, August 3 – August 7, 2008


2018 ◽  
Vol 9 ◽  
pp. 1220-1227 ◽  
Author(s):  
Caspar Haverkamp ◽  
George Sarau ◽  
Mikhail N Polyakov ◽  
Ivo Utke ◽  
Marcos V Puydinger dos Santos ◽  
...  

A fluorine free copper precursor, Cu(tbaoac)2 with the chemical sum formula CuC16O6H26 is introduced for focused electron beam induced deposition (FEBID). FEBID with 15 keV and 7 nA results in deposits with an atomic composition of Cu:O:C of approximately 1:1:2. Transmission electron microscopy proved that pure copper nanocrystals with sizes of up to around 15 nm were dispersed inside the carbonaceous matrix. Raman investigations revealed a high degree of amorphization of the carbonaceous matrix and showed hints for partial copper oxidation taking place selectively on the surfaces of the deposits. Optical transmission/reflection measurements of deposited pads showed a dielectric behavior of the material in the optical spectral range. The general behavior of the permittivity could be described by applying the Maxwell–Garnett mixing model to amorphous carbon and copper. The dielectric function measured from deposited pads was used to simulate the optical response of tip arrays fabricated out of the same precursor and showed good agreement with measurements. This paves the way for future plasmonic applications with copper-FEBID.


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