scholarly journals Optical far-field extinction of a single GaAs nanowire towards in situ size control of aerotaxy nanowire growth

2020 ◽  
Vol 31 (13) ◽  
pp. 134001 ◽  
Author(s):  
Yang Chen ◽  
Nicklas Anttu ◽  
Sudhakar Sivakumar ◽  
Eleni Gompou ◽  
Martin H Magnusson
2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Carina B. Maliakkal ◽  
Daniel Jacobsson ◽  
Marcus Tornberg ◽  
Axel R. Persson ◽  
Jonas Johansson ◽  
...  

Abstract Semiconductor nanowires offer the opportunity to incorporate novel structures and functionality into electronic and optoelectronic devices. A clear understanding of the nanowire growth mechanism is essential for well-controlled growth of structures with desired properties, but the understanding is currently limited by a lack of empirical measurements of important parameters during growth, such as catalyst particle composition. However, this is difficult to accurately determine by investigating post-growth. We report direct in situ measurement of the catalyst composition during nanowire growth for the first time. We study Au-seeded GaAs nanowires inside an electron microscope as they grow and measure the catalyst composition using X-ray energy dispersive spectroscopy. The Ga content in the catalyst during growth increases with both temperature and Ga precursor flux.


1982 ◽  
Vol 14 (3) ◽  
pp. 33-39
Author(s):  
C Y Kuo

An existing, three-dimensional, Eulerian-Lagrangian finite-difference model was modified and used to examine the far-field transport processes of dumped sewage sludge in the New York Bight. Both in situ and laboratory data were utilized in an attempt to approximate model inputs such as mean current speed, vertical and horizontal diffusion coefficients, particle size distributions, and specific gravities. Concentrations of the sludge near the sea surface predicted from the computer model were compared qualitatively with those remotely sensed.


2017 ◽  
Vol 23 (S1) ◽  
pp. 1716-1717 ◽  
Author(s):  
Kimberly Dick Thelander ◽  
L. Reine Wallenberg ◽  
Axel R. Persson ◽  
Marcus Tornberg ◽  
Daniel Jacobsson ◽  
...  

2019 ◽  
Vol 25 (S2) ◽  
pp. 1426-1427
Author(s):  
Miao Song ◽  
Jaewon Lee ◽  
Dongsheng Li

2013 ◽  
Vol 24 (11) ◽  
pp. 115304 ◽  
Author(s):  
Keitaro Ikejiri ◽  
Fumiya Ishizaka ◽  
Katsuhiro Tomioka ◽  
Takashi Fukui

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Piers Turner ◽  
Mark Hodnett ◽  
Robert Dorey ◽  
J. David Carey
Keyword(s):  

2007 ◽  
Vol 13 (S02) ◽  
Author(s):  
B Li ◽  
W Swiech ◽  
J-M Zuo

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