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Citation: Wei Sai-Zhen, Mao Zu-Sui, Wang Lei, Chen Xiao-Feng, Zheng Yong-Ming. The Fractal Structure Investigation of Pd Film Deposited on Polyvinyl Formal[J]. Acta Physico-Chimica Sinica, ;1997, 13(03): 218-223. doi: 10.3866/PKU.WHXB19970307 shu

The Fractal Structure Investigation of Pd Film Deposited on Polyvinyl Formal

1.
Department of Physics,Zhejiang University,Hangzhou 310027

Received Date: 10 September 1996
Available Online: 15 March 1997

The influence of substrate temperature and of deposition rate upon microstructure of Pd film deposited on Polyvinyl Formale (PVF) has been investigated using TEM. Transition from compact islands to fractal structures has been observed when substrate temperature decreased. The fractal structure appeared at 233-253K. The fractal dimension was measured using the Sandbox method. The fractal patterns of Pd film on PVF at the same temperature varied with changing deposition rate. These fractal structures are stable. The experimental results have been discussed using DLA(Diffusion -Limited-Aggregation) model with active edge diffusion.
- Fractal structure,
- Pd film,
- Low temperature,
- Polyvinyl formale
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