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Andam Deatama Refino
Engineering Physics Department, Institut Teknologi Sumatera, Lampung Selatan, Indonesia 35365
Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Materials Science & Nanotechnology Mechanical Engineering

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Simulation of Electric Field Distribution on Meniscus of Electrospray with Zinc Oxide Material Andam Deatama Refino; Hadi Teguh Yudistira; Denny Hidayat Tri Nugroho; Deska Lismawenning
Journal of Science and Applicative Technology Vol 2 No 1 (2019): ICoSITeR Special Edition
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (377.718 KB) | DOI: 10.35472/281463

Abstract

Electrospray system had attracted attention of many researchers. It is due to easy to yield uniform thin film and possible for thin film mass production. The important parameters of electrospray process for getting uniform thin film are electric field distribution, surface substrate treatment and solvent properties. In this work, we observed electric field distribution on meniscus. Numerical work has carried out on this work. The material on meniscus used zinc oxide liquid properties. Voltage and walking distance between nozzle and substrate are the most important parameter to adjust electric field distribution. The decreasing walking distance with constant voltage yields increasing electric field distribution on meniscus. On vice versa, the increasing walking distance yields decreasing electric field distribution on meniscus. Increasing and decreasing voltage yields increasing and decreasing electric field distribution on meniscus, respectively.
Studi investigasi adsorpsi oksigen pada permukaan ZnO[111] Listra Yehezkiel Ginting; Andam Deatama Refino; Lukman Nulhakim
Journal of Science and Applicative Technology Vol 4 No 1 (2020): Journal of Science and Applicative Technology June Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (524.29 KB) | DOI: 10.35472/jsat.v4i1.221

Abstract

The growth of ZnO is an interesting case in the study of functional materials. Adsorption of molecular oxygen onto the surface of Zn-terminated ZnO can be used as a sample case of ZnO crystal growth with its precursors. In this study, we want to see the tendency of molecular oxygen adsorption: whether it is adsorbed as a whole molecule or it is dissociated into the two constituting oxygen atoms before being adsorbed on oxygen adsorption sites for the growth of the crystal. Potential energy surface survey has been carried out on the three configuration of molecular oxygen based on their translational degree of freedom. The configuration of the oxygen molecule with O=O bond axis being normal to the surface tends to be adsorbed wholly as molecule with adsorption energy of 4.11 eV, while the configuration of bond perpendicular to the surface have the tendency to dissociate into individual atoms.
Co-Authors Denny Hidayat Tri Nugroho Deska Lismawenning Hadi Teguh Yudistira, Hadi Teguh Listra Yehezkiel Ginting Lukman Nulhakim