Anthracene과 Dibenzothiophene을 포함하는 OTFT 물질의 합성과 OTFT 특성에 관한 연구

다국어 초록 (Multilingual Abstract)

This article describes the synthesis and OTFT characteristics of anthracene and dibenzothiophene derivatives.
The OTFT materials were synthesized by well knowen reaction, bromination, Suzuki coupling, Yamamoto reaction, etc.
Monomers, polymers, and oligomers were characterized by the spectroscopic methods such as UV-visible, FT-IR, and 1H-NMR spectroscopies.
The resulting polymers were soluble in common organic solvents such as toluene, xylene, chlorobenzene, etc. The oligomers were well soluble in hot aromatic solvent, toluene, xylene, chlorobenzene.
The obtained polymers and oligomers showed high thermal stabilities with high Td's(Td : 298 oC - 441 oC), which were characterized by TGA.
Optical properties of these polymers and oligomer were characterized by UV-visible and photoluminescence (PL) spectra, which were measured in solution and film, respectively. The polymers and oligomers were red shift solution to film in UV-visible and photoluminescence (PL) spectra. The materials were good orderness and stacking, respectively.
The thin-film transistor (TFT) performances of dibenzothiophene derivatives are examined. Through studied of the thin film morphology using X-ray diffraction (XRD) and atomic force microscopy. Due to the extended π-conjugation and efficient hole injection, the devices exhibited hole mobility of up to 0.026 cm2/Vs. The devices showed very low subthreshold-slope of 0.4 V/dec.

목차 (Table of Contents)

• I 서론
• 1. OTFT 서론 1
• 2. OTFT의 동작원리 2
• 3. OTFT 특성 4
• 4. OTFT 재료 6
• II OTFT 특성에 관한 연구
• 1. Dibenzothiophene유도체의 합성과 OTFT특성에 관한 연구 15
• 1). 실험 15
• (1) 실험재료 및 기기 15
• (2) Oligomer의 합성 16
• 2). 결과 및 고찰 22
• (1) Oligomer의 확인 22
• (2) 열적특성 24
• (3) 광학적 특성 27
• (4) OTFT 특성 29
• 3). 결론 34
• 2. Anthracene을 포함하는 고분자의 합성 35
• 1). 실험 35
• (1) 실험재료 및 기기 35
• (2) 단량체 합성 36
• (3) 고분자 합성 41
• 2). 결과 및 고찰 44
• (1) 단량체 확인 44
• (2) 고분자 확인 46
• (3) 중합체의 용해도 및 분자량 47
• (4) 열적특성 49
• (5) 전기 광학적 특성 52
• (6) 표면에너지 특성 54
• 3) 결론 56
• 3. TIPS anthracene 유도체의 합성 57
• 1). 실험 57
• (1) 실험재료 및 기기 57
• (2) Oligomer의 합성 58
• 2). 결과 및 고찰 66
• (1) Oligomer의 확인 66
• (2) 열적특성 69
• (3) 전기 광학적 특성 70
• 3). 결론 75
• 참고문헌 76