Preparation of New Photosensitive ZrO2 Gel Films Using Hydroxyl-Substituted Aromatic Ketones as Chemical Modification Reagents and their Patterning |
| |
Authors: | Naoki Noma Saori Yamazaki Noboru Tohge |
| |
Institution: | 1. Department of Applied Chemistry, Kinki University, 3-4-1, Kowakae, Higashi-Osaka, Osaka, 577-8502, Japan
|
| |
Abstract: | ZrO2 gel films were prepared from zirconium tetra-n-butoxide chemically modified with one of hydroxyl-substituted aromatic ketones and 1′-hydroxy-2′-acetonaphthone, by the sol-gel method. The obtained gel film showed an absorption band, characteristic of the π-π* transition of chelate ring, at around 410 nm. The band was shifted to longer wavelength region than those for the gel films using β-diketones. The reason is thought that the hydroxyl-substituted aromatic ketone has π-electron system to form the condensed chelate ring. The absorption band associated with the chelate ring gradually decreased in intensity with UV-irradiation using a high pressure mercury lamp. This indicates that the chelate ring dissociates by the UV-irradiation and that the gel film exhibits photosensitivity. Utilizing the photosensitivity, fine patterns (about 1 μm) could be fabricated by UV-irradiation through a mask and leaching. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|