| Summary: | 碩士 === 國立中央大學 === 物理學系 === 85 === We use the inert-gas condensation method to prepare Ag
particle,and observethe growth of particles at various
evaporation conditions.We collect two kindsof specimen,one is
deposited onto carbon coated copper grid and the other isonto
base.By Transmission Electron Microscopy (TEM),the growth of
particles onthe copper grid and the distribution of particle
size is studied.And the particle size on base is measured by X-
ray diffraction.In the experiment,wechange the current of
evaporation source,the pressure of argon gas,the distancebetween
base and evaporation source,the temperature of base,the
evaporation time,and use different inert-gas and heater
materials in order to study theeffect to the growth of
particles.The conceptual model for particle growth canbe
described by growth layer established by C.G.Granquist and R.A.
Buhrman.According to the growth layer model and observing
results from TEM,we study the effect of evaporation environment
to the growth of particles.Otherwise,the distribution of
particle size obey the Log-Normal Distribution Function (LNDF),
and they can compare with each other and give evidence.
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