Formation of almost delta-layered nanoparticles in SiO2 thin film on Si substrate by metal negative-ion implantation

Author(s):  
Junzo Ishikawa ◽  
Hiroshi Tsuji ◽  
Nobutoshi Arai ◽  
Takuya Matsumoto ◽  
Kazuya Ueno ◽  
...  
2007 ◽  
Vol 46 (9B) ◽  
pp. 6260-6266 ◽  
Author(s):  
Nobutoshi Arai ◽  
Hiroshi Tsuji ◽  
Kouichirou Adachi ◽  
Hiroshi Kotaki ◽  
Yasuhito Gotoh ◽  
...  

1999 ◽  
Vol 563 ◽  
Author(s):  
Dong Joon Kim ◽  
Ik-Soo Kim ◽  
Yong Tae Kim ◽  
Jong-Wan Park

AbstractMolybdenum nitride thin films were prepared by N2+ implantation with acceleration energy of 20 keV and the ion dose of 3×1017 ions/cm2. The structural property and thermal stability of the films were investigated by XRD, AES, AFM and RBS. The crystal structure of N2+ implanted molybdenum thin films (Mo-N2+) which had microcrystalline state was transformed to γ-Mo2N phase with a preferred (111) orientation after a post-annealing at 500 °C for 30min. However, a silicide reaction was not observed even after the annealing at 700 °C, which is due to the modification of the interface between Mo thin film and Si substrate by N2+ implantation. Also, Cu diffusion did not seem to be induced by the annealing at 700 °C for 30 min. The internal stress of the Mo-N2+ thin films during post-annealing at 600 °C for 30min was found to change from highly compressive stress to low tensile stress.


1998 ◽  
Vol 555 ◽  
Author(s):  
H lizuka ◽  
M Murahara

AbstractThis paper describe the growth of a transparent SiO2 thin film performed by using Xe2• excimer lamp at room temperature. In this study, NF., and O2 mixture gases was employed as a reaction gas. A silicon substrate was placed in a reaction chamber, which was filled with NF3 and O2 mixture gases. The mixture gases were exposed to the Xe2• excimer lamplight, and SiF4 and NO2 gases were produced by photochemical reaction. Subsequently SiF4 adsorbed onto the Si substrate. SiO2 was formed by oxidation reaction between SiF4 and NO2. These processes occur spontaneously, and SiO2 film is grown. The refractive index of fabrication SiO2 thin film is 1.32. By annealing at 200°C, the refractive index of this filn was increased to 1.44. Further increase in the annealing temperature, resulted in a higher refractive index and lower density of fluorine atoms.


1998 ◽  
Vol 130-132 ◽  
pp. 214-220 ◽  
Author(s):  
Osamu Maida ◽  
Hideaki Yamamoto ◽  
Norio Okada ◽  
Takeshi Kanashima ◽  
Masanori Okuyama

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