In situ transmission electron microscopy observation of the growth of bismuth oxide whiskers.
Growth of bismuth oxide (most probably Bi2O3) was observed in situ in a transmission electron microscope. Bi liquid particles were dispersed on the substrates of diamond or SiO2. Introduction of oxygen up to 5 x 10-4 Pa resulted in formation of bismuth oxide (most probably Bi2O3) whiskers. The growth mechanism of the whisker was discussed in terms of a vapor-liquid-solid (VLS) mechanism. It is suggested that the liquid droplet of Bi acts as a physical catalyst for growth of bismuth oxide (most probably Bi2O3) whiskers.
Mima
T
T
Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan.
Takeuchi
Y
Y
Arai
S
S
Kishita
K
K
Kuroda
K
K
Saka
H
H