표제지
초록
목차
1. 서론 13
1.1. 색 보정 컬러필터가 도입된 OLED 패널 구조 13
1.2. 색재현율 증가를 위한 색경계 흡수 염료 16
1.3. Cyanine 염료의 구조 및 특성 20
2. 실험방법 24
2.1. 시약 및 장비 24
2.1.1. 시약 24
2.1.2. 장비 24
2.2. 물질의 합성 및 구조분석 26
2.2.1. 3-hexyl 2-methyl benzoxazole의 합성 26
2.2.2. 3-Hexyl 2-methyl 5-phenyl benzoxazole의 합성 27
2.2.3. Cy3-1 합성 29
2.2.4. Cy3-2의 합성 30
2.2.5. Cy3-3의 합성 32
2.2.6. Cy3-4의 합성 33
2.2.7. TFSI 치환체의 합성 35
2.3. 컬러필터 제조 36
2.4. 광학성 특성 측정 36
2.5. 결정성 측정 37
2.6. 내열성 측정 37
2.7. 내광성 측정 38
3. 실험결과 및 논의 39
3.1. 염료의 특성 분석 39
3.1.1. 염료의 구조 분석 39
3.1.2. 염료의 광학적 특성 분석 42
3.1.3. 염료의 형광 광자 수 분석 46
3.1.4. 염료의 결정성 분석 49
3.1.5. 염료의 내열성 분석 52
3.1.6. 염료의 내광성 분석 56
3.2. 컬러필터 특성 분석 59
3.2.1. 컬러필터의 광학적 특성 분석 59
3.2.2. 컬러필터의 투과도 분석 62
3.2.3. 컬러필터의 내열성 분석 64
4. 결론 및 요약 67
참고 문헌 70
Abstract 73
Table 1. Calculated HOMO, LUMO, and energy gap of cyanine dyes. 40
Table 2. Maximum absorption wavelength, corresponding extinction coefficient (ε), FWHM (full width at half maximum),... 43
Table 3. Fluorescence lifetime (τ) and rate constants of radiative (kr) and non-radiative relaxation (knr) of synthesized...[이미지참조] 47
Table 4. Thermal decomposition temperature of cyanine dyes at a 2% weight loss. 53
Table 5. Relative absorbance of the synthesized cyanine dyes and TFSI substituted cyanine dyes after 1hour LED irradiation. 57
Table 6. Positions of the maximum absorption peak, and FWHM of fabricated PSU films. 60
Table 7. Transmittances at λmax of cyanine dyes in fabricated PSU films.[이미지참조] 63
Table 8. Relative absorbance of PSU films before and after the post-bake. 65
Fig. 1. Structure of OLED color filter 13
Fig. 2. Representative absorption spectra of cyanine dye, BODIPY dye, and squaraine dye 18
Fig. 3. General structure of polymethine cyanine dyes 20
Fig. 4. Optimized structures and frontier molecular orbitals of synthesized cyanine dyes. 39
Fig. 5. Absorption spectra of (a) synthesized cyanine dyes and (b) TFSI substituted cyanine dyes in chloroform (5x10-6 M).[이미지참조] 42
Fig. 6. The number of fluorescence photons per lifetime of (a) Cy3-1 and Cy3-2, (b) Cy3-3 and Cy3-4... 46
Fig. 7. XRD patterns of the microcrystals of (a) synthesized cyanine dyes and (b) TFSI substituted cyanine dyes. 49
Fig. 8. TGA analysis of synthesized materials over a range of 30-500 ℃. All samples were heated under a nitrogen... 52
Fig. 9. Change of relative absorbance of cyanine dye solutions according to LED light irradiation time. (Measured in toluene... 56
Fig. 10. Absorption spectra of fabricated PSU films made with (a) synthesized cyanine dyes and (b) TFSI substituted cyanine dyes. 59
Fig. 11. Transmittance spectra of fabricated PSU films made with (a) synthesized cyanine dyes and (b) TFSI substituted... 62
Fig. 12. Normalized absorption spectra of fabricated PSU films made with (a) synthesized cyanine dyes and (b) TFSI... 64
Scheme 1. Synthesis of 3-Hexyl 2-methyl benzoxazole 26
Scheme 2. Synthesis of 3-Hexyl 2-methyl 5-phenyl benzoxazole 27
Scheme 3. Synthesis of Cy3-1 29
Scheme 4. Synthesis of Cy3-2 30
Scheme 5. Synthesis of Cy3-3 32
Scheme 6. Synthesis of Cy3-4 33
Scheme 7. Synthesis of TFSI substituted cyanine dyes 35