Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Effect of Microstructural Change on the Optical Property of Ormosil Embedded Organic Molecules

유기염료의 기저체로 사용된 세라믹/고분자 복합체의 미세구조변화가 광학특성에 미치는 영향

  • 김구대 (한국과학기술연구원 세라믹공정 센터) ;
  • 이동아 (한국과학기술연구원 세라믹공정 센터) ;
  • 김재동 (한국과학기술연구원 세라믹공정 센) ;
  • 박지애 (한국과학기술연구원 세라믹공정 센터)
  • Published : 1996.12.01
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Abstract

In order to obtain a transparent and dimer-free Ormosil embedded with orgainc dye variations of gel struc-ture and optical properties were studied as a functiion of the change of gel composition. The Ormosils which have good optical property were produced in the 90/10 ratio of TEOS/PDMS and the structural variations of the gel were achived by the change of ratio of HCl/TEOS. As the ratio of HCl/TEOS was increased pore size of the Ormosil enlarged and porosity increased. Increasing HCl concentration led to gradually lower trans-mittance values. In the xerogel doped with the organic dye Rhodamine 6G perchlorate a dimer peak near 500nm was observed with the increase of the ratio of HCl/TEOS

투광성이 좋고 dimer의 형성이 억제되는 유기염료의 기저체를 얻기 위해 Ormosil(organically modified silicate)제조시에 출발물질 및 촉매의 조성을 변화시켰으며 이 각각의 조성에 따른 미세구조의 변화가 광학특성에 미치는 영향에 대한 연구가 수행되었다. 광학적 응용이 가능한 Ormosil의 TEOS/PDMS 비는 90/10이었으며 겔의 미세구조 변화는 HCI/TEOS의 비를 조절하여 달성하였다. 이 HCI/TEOS의 비가 증가될수록 그 복합체의 기공은 커졌으며, 기공률은 증가되었다. 또한 이 비의 증가에 따라 투광성이 감소되었다. 이러한 특성변화를 가지는 기저체에 염료인 Rhodamice 6G perchlorate(Rh6Gp)를 첨가하면 HCI/TEOS의 비가 증가할수록 monomer에 대한 dimer 피크의 강도가 증가되었다.

Keywords

References

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