이차 비선형 광학 성질을 갖는 새로운 스티릴 퀴놀리니움-알콕시 벤젠 설포네이트 결정연구
New Styryl Quinolinium Crystals with Methoxybenzenesulfonate for Second-Order Nonlinear Optics
- 주제(키워드) Second-Order Nonlinear Optics , Organic Crystals
- 발행기관 아주대학교
- 지도교수 권오필
- 발행년도 2017
- 학위수여년월 2017. 2
- 학위명 석사
- 학과 및 전공 일반대학원 분자과학기술학과
- 실제URI http://www.dcollection.net/handler/ajou/000000024070
- 본문언어 영어
- 저작권 아주대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
We designed new styryl quinolinium crystals with methoxybenzenesulfonate, named OHQ-MBS (2-(4-hydroxystyryl)-1-methylquinolinium methoxybenzene sulfonate). OHQ-MBS aligned in non-centrosymmetric structure which is almost as same as OHQ-T (2-(4-hydroxystyryl)-1-methylquinolinium 4-methylbenzenesulfonate). Molecular properties were investigated by TGA, DSC, UV-vis absorption spectroscopy. The OHQ-MBS crystals have almost same properties compared to OHQ-T, even though the anion is methoxybenzenesulfonate group which is larger than methylbenzenesulfonate and can rotate. The OHQ-MBS crystals were grown in single solvent (methanol) and co-solvent (methanol:acetonitrile (1:1 mol.)) with temperature cooling method and solvent evaporation method. In the grown crystals, we could have known that OHQ-MBS crystals show different morphology and optical property in THz-frequency region in comparison with OHQ-T crystals.
more목차
Ι. Introduction
II. Experiments
II.1. Chemical structure
II.2. Synthesis
II.2.1. Materials
II.2.2. Synthesis of Intermediate
II.2.3. Synthesis of Chromophore
II.3. General Characterization
II.3.1. 1H-NMR Analysis
II.3.1.1. 1H-NMR Analysis of Intermediate
II.3.1.2. 1H-NMR Analysis of Chromophore
III. Results and Discussion
III.1. Design of Crystals
III.2. Thermal Analysis
III.3. Optical Properties
III.3.1 UV-vis Absorption Spectra
III.4. Second Harmonic Generation (SHG) Test
III.5. Crystal Growth and Structure Analysis
III.6. Crystal Characteristics and Morphology
III.7. IR spectroscopy in THz region
IV. Conclusions
V. References
