Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2000.11c
- /
- Pages.434-436
- /
- 2000
The analysis of the optical response of merocyanine LB films using QCM
수정진동자를 이용한 메로시아닌 색소 LB막의 광반응 특성
- Kang, Ki-Ho (Dept. of Electrical Eng., Dong-A University) ;
- Kim, Jeong-Myung (Dept. of Electrical Eng., Dong-A University) ;
- Chang, Jung-Soo (Dept. of Electrical Eng., Kyung-Il University) ;
- Kwon, Young-Soo (Dept. of Electrical Eng., Dong-A University)
- Published : 2000.11.25
Abstract
In this study, we investigate the optical characteristics of merocyanine dye Langmuir-Blodgett(LB) film using the oscillation characteristics of quartz crystal. As results, the resistance and frequency shift at the parallel resonance under the UV irradiation is to be going down. This behaviour of resistance and frequency is different from the case of general mass adsorption into the organic film on the quartz crystal. Generally the frequency decrease of quartz crystal oscillator, which has been considered as mass loading, goes along with the resistance increase. Thus it has been suggested that the J-aggregate dissociation in merocyanine dye LB film by UV irradiation give rise to transformation of oscillation characteristics of quartz crystal.
Keywords