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Growth process

How a growth process” nanoworkshop works?

The growth of nanotubes or nanowires is obtained by chemical vapor deposition in a confined reactor. The break down of the substrate (preparation) may disperse a few particles. Some characterization techniques can damage the sample. The daily cleaning is done with the reactor closed, but some maintenance with the reactor open are needed each year. The particles/substrate liaison of the samples is high (low risk of inhalation) provided shocks, destruction, or contacts are avoided. The operations of transfert of samples are therefore done with shields and their destruction are made with waste elimination.

The depositing via CVD on the growth equipment presents the characteristics of a clean technology. A pressurized recycled water loop (no cleanup discharge) is used to cool the chambers.

SEM image of NI nanowires [N.M. Mohamed et al., Diamond and Related Materials 65 (2016) 59-64].