摘要 |
In an immobilization process of electrostatically spraying a nanomaterial dispersion liquid 13 from an electrostatic spray nozzle 20 and immobilizing a nanomaterial on a sample 10, a voltage is applied between the dispersion liquid 13 and the sample 10 to electrostatically spray the dispersion liquid 13 onto the sample 10 from a spray outlet 22 of the nozzle 20 under a condition where one or zero particles of the nanomaterial 18 are contained in each individual droplet 16 sprayed and electrostatically deposit the nanomaterial 18 onto a surface of the sample 10 after drying a solvent 17, contained in each individual droplet 16, in an atmosphere to immobilize the nanomaterial 18 on the sample 10. Aggregation of the nanomaterial in each droplet is thereby prevented and the nanomaterial can be immobilized favorably on the sample.
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