1. Chem 750/7530
Antony D. Han

2. Experiments 1~3 : Vapour phase CVD Ferrocene/benzene
NiCl2 /(benzene)1/2 and (methanol)1/2
4~5 : thermal CVD
Silicon substrates with Ni catalysis
5 nm and 10 nm of Ni
benzene as the C source

3. Results and discussion
VPCVD
Thermal CVD

4. Why? — two mechanism
Root growth:
Tip growth: the reverse mechanism

5. However
Conclusion:
Well explained the difference between the experimental observation and conventional
theoretical mechanism
Proposed a mechanism for vapour phase CVD
Compared between conventional thermal CVD and spray pyrolysis ( VPCVD)