Structural Characterization of Silicon Carbide Etched by Using a Combination of Ion Implantation and Wet Chemical Etching

2000 ◽  
Vol 338-342 ◽  
pp. 481-484 ◽  
Author(s):  
T. Henkel ◽  
Gabriel Ferro ◽  
Shin Ichi Nishizawa ◽  
H. Pressler ◽  
Yasuhito Tanaka ◽  
...  
2011 ◽  
Vol 99 (21) ◽  
pp. 213108 ◽  
Author(s):  
David Beke ◽  
Zsolt Szekrényes ◽  
István Balogh ◽  
Miklós Veres ◽  
Éva Fazakas ◽  
...  

2012 ◽  
Vol 1468 ◽  
Author(s):  
D. Beke ◽  
Zs. Szekrényes ◽  
I. Balogh ◽  
M. Veres ◽  
É Fazakas ◽  
...  

ABSTRACTLuminescence nanocrystals or quantum dots give grate potential for bio-analysis as well as optoelectronics. Here we report an effective and non-expensive fabrication method of silicon carbide nanocrystals, with diameter below 10 nm, based on electroless wet chemical etching. Our samples show strong violet-blue emission in the 410-450 nm region depending on the used solvents and particle size. Raman and infrared measurements suggest the varied nature of surfaces of silicon carbide nanocrystals which elucidate the behavior of the silicon carbide colloid solvents and also give opportunity to modify the surface easily for specific biological, medical or other application.


2001 ◽  
Vol 681 ◽  
Author(s):  
Hung-I Kuo ◽  
Christian Zorman ◽  
Mehran Mehregany

ABSTRACTThis paper reports on a novel, bonding-free method to fabricate silicon carbide-on-insulator (SiCOI) substrates. The process bypasses wafer bonding by using a high deposition rate polysilicon process in conjunction with wet chemical etching to produce wafer-thick polysilicon layers that serve as substrates for the SiCOI structures. Because wafer bonding is not used, insulators of various material types and thickness can be used. Using this method, transfer percentages over 99% are readily achievable. Various applications could benefit from this technology, including high temperature SiC-based microelectromechanical systems (MEMS) and SiC electronic devices.


2000 ◽  
Vol 647 ◽  
Author(s):  
Torsten Müller ◽  
Karl-Heinz Heinig ◽  
Bernd Schmidt ◽  
Arndt Mücklich ◽  
Wolfhard Möller

AbstractThe synthesis of spatially controlled Ge nanowires and nanoclusters by Ge+ ion implantation in oxidized V-grooves on (001) Si surfaces has been studied experimentally as well as theoretically. The V-grooves were prepared by anisotropic wet chemical etching and thermal oxidation. The SiO2-covered V-grooves were implanted with 70 keV Ge+ ions up to a fluence of 1017 cm−2. Ge accumulates within the SiO2 at the bottom of the V-groove, which has been proven by analytical TEM (EDX-mapping). Theoretical studies have shown that the Ge accumulation is caused by the V-groove geometry, forward sputtering, and re-deposition. During subsequent annealing the redistributed Ge forms a nanowire by precipitation, ripening and coalescence. Kinetic lattice Monte Carlo simulations of the nanowire formation process show growth instabilities and self-organization phenomena.


2012 ◽  
Vol 28 (1) ◽  
pp. 44-49 ◽  
Author(s):  
David Beke ◽  
Zsolt Szekrényes ◽  
István Balogh ◽  
Zsolt Czigány ◽  
Katalin Kamarás ◽  
...  

Abstract


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