Kim, GD Lee, DA Kim, JD Moon, JW Lee, HM 2024-01-21T19:04:36Z 2024-01-21T19:04:36Z 2021-09-05 1997-01 0928-0707 https://pubs.kist.re.kr/handle/201004/144150 An organically modified silicate (Ormosil) for a dye laser was produced with a 90/10 ratio of Tetraethyl orthosilicate and Polydimethyl silanol (TEOS/PDMS) by sol-gel method. The optical properties of a dye incorporated in Ormosil were studied as a function of the amount of catalyst. In the xerogel doped with Rhodamine 6G perchlorate, a dimer peak near 500 nm appeared with increases of HCl amounts. The dimer peak was affected by enlarged pore size of the Ormosil and increased porosity due to the increased HCl concentration. Also, the increase of HCl concentration led to gradually lower transmittance values of the dye host. The dimer peak was identified by measuring optical absorption by ultraviolet/visible spectrophotometer. The changes of pore structure and porosity were investigated by SEM and BET. English KLUWER ACADEMIC PUBL LASER DYE RHODAMINE-6G BEHAVIOR PHOTOSTABILITY FILMS Effect of microstructural change on the optical property of Ormosil embedded with organic molecules Article 10.1023/A:1018373301191 1 JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, v.10, no.3, pp.283 - 289 JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY 10 3 283 289 scie scopus A1997YL63900005 2-s2.0-0031273247 Materials Science, Ceramics Materials Science Article LASER DYE RHODAMINE-6G BEHAVIOR PHOTOSTABILITY FILMS Ormosil dimerization rhodamine 6G perchlorate