Studies on superhydrophobic surfaces of ZnO nanorods grown on artificially ink-jetted microstructures | |
| Author | Myo Tay Zar Myint |
| Call Number | AIT Thesis no.ME-08-05 |
| Subject(s) | Hydrophobic surfaces Ink-jet printing |
| Note | A thesis submitted in partial fulfillment of the requirement for the degree of Master of Engineering in Microelectronics, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ME-08-05 |
| Abstract | The surface that cannot mostly attach the water is called hydrophobic. We can determine the level of hydrophobicity with water contact angle (WCA). Surface geometry is the important mechanism of the superhydrophobic property. Attempts have been mostly made in the literature to construct structures similar to the lotus leaves by photolithography and etching of silicon substrates. Here, we report on the use of ink-jetting technique to construct the templates for the growth of microbumps consisting of zinc oxide (ZnO) nanorods (diametermμ100≈) using a simple hydrothermal growth on seeded substrates. Several patterns were developed and it was found that mμ100bumps separated from one another by aboutmμ100; consisting of ZnO nanorods of at least mμ4 height leads to water contact angle ofo143. This can be further improved by a simple fluorosiloxane treatment to about o150contact angle. Continuous coatings of nanorods without microbumps yielded hydrophilic surfaces with water contact angleo10≈. |
| Year | 2008 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ME-08-05 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Industrial Systems Engineering (DISE) |
| Academic Program/FoS | Microelectronics (ME) |
| Chairperson(s) | Dutta, Joydeep |
| Examination Committee(s) | Manukid Parnichkun;Jayasuriya, H.P.W. |
| Scholarship Donor(s) | Thailand (HM King’s) |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2008 |