scholarly journals Surface and Interface Investigations of Matrix–Fillers in Heterogeneous Amorphous Semiconductors

ACS Omega ◽  
2021 ◽  
Author(s):  
Maryama Hammi
Author(s):  
Xianghong Tong ◽  
Oliver Pohland ◽  
J. Murray Gibson

The nucleation and initial stage of Pd2Si crystals on Si(111) surface is studied in situ using an Ultra-High Vacuum (UHV) Transmission Electron Microscope (TEM). A modified JEOL 200CX TEM is used for the study. The Si(111) sample is prepared by chemical thinning and is cleaned inside the UHV chamber with base pressure of 1x10−9 τ. A Pd film of 20 Å thick is deposited on to the Si(111) sample in situ using a built-in mini evaporator. This room temperature deposited Pd film is thermally annealed subsequently to form Pd2Si crystals. Surface sensitive dark field imaging is used for the study to reveal the effect of surface and interface steps.The initial growth of the Pd2Si has three stages: nucleation, growth of the nuclei and coalescence of the nuclei. Our experiments shows that the nucleation of the Pd2Si crystal occurs randomly and almost instantaneously on the terraces upon thermal annealing or electron irradiation.


1972 ◽  
Vol 33 (C3) ◽  
pp. C3-157-C3-165 ◽  
Author(s):  
B. KRAMER ◽  
K. MASCHKE ◽  
P. THOMAS

1981 ◽  
Vol 42 (C4) ◽  
pp. C4-395-C4-398 ◽  
Author(s):  
M. Wautelet ◽  
R. Andrew ◽  
M. Failly-Lovato ◽  
L. D. Laude

1981 ◽  
Vol 42 (C4) ◽  
pp. C4-855-C4-864 ◽  
Author(s):  
E. A. Davis

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