TiO2 산화물 제조 및 코팅 횟수에 따른 전기 및 물리적 특성에 대한 연구
Influence of Coating Cycles on the Electrical and Physical Properties of TiO2 Oxide Films Prepared from a Solution-Based Process
This study synthesized a TiO2 nano-solution through the reaction between TiCl4 and isopropyl alcohol (IPA) and fabricated TiO2 thin films on glass substrates via repeated coating. The optical and electrical properties were systematically analyzed as a function of coating cycles, revealing that increased film thickness and optical interference caused spectral peak shifts and changes in reflectance behavior. Photoluminescence (PL) analysis showed a decrease in emission intensity with increasing coating cycles due to reduced defect density and enhanced non-radiative recombination pathways. In addition, sheet resistance increased with the number of coatings, confirming enhanced electrical insulating properties. These results demonstrate that the optical and electrical properties of solution-processed TiO2 thin films can be effectively controlled through thickness and defect engineering, providing fundamental insights for optoelectronic devices and functional coating applications.
한국어
본 연구에서는 TiCl4와 IPA의 반응으로 TiO2 나노 용액을 합성한 뒤 글라스 기판에 반복 코팅하여 박막을 제작하고, 코팅 횟수에 따른 광학적·전기적 특성 변화를 분석하였다. 반사도 및 확산 반사 결과, 코팅 횟수 증가에 따른 박막 두께 증가와 광 간섭 효과로 스펙트럼 피크 이동과 반사 특성 변화가 나타났다. PL 분석에서는 코팅 횟수 증가에 따라 발광 강도가 감소하였으며, 이는 결함 밀도 감소와 비복사 재결합 경로 증가에 기인한 것으로 해석된다. 또한 표면저항은 코팅 횟수가 증가할수록 증가하여 절연 특성이 강화됨을 확인하였다. 이러한 결과는 용액 공정 기반 TiO2 박막에서 두께 및 결함 제어를 통해 광·전기적 특성 조절이 가능함을 보여주며, 광전자 소자와 기능성 코팅 응용을 위한 기초 자료를 제공한다.
목차
요약 Abstract Ⅰ. 서론 Ⅱ. 연구방법 및 결과 2.1 TiO2 용액 제조 2.2 TiO2 박막 형성 2.3 글라스 상에 코팅된 TiO2 박막 특성 Ⅲ. 결론 REFERENCES
Ever since next generation convergence technology became one of the most important industries in the nation, computing professionals have encountered a growing number of challenges. Along with scholars and colleagues in related fields, they have gathered in avariety of forums and meetings over the last few decades to share their knowledge, experiences and the outcome of their research. These exchanges have led to the founding of the International Next-generation Convergence technology (INCA) on December 1, 2015. INCA was registered as an incorporated association under the Ministry of Information and Communications. The main purpose of the organization is to improve our society by achieving the highest capability possible in next generation convergence technology.
간행물
간행물명
차세대융합기술학회논문지 [The Journal of Next-generation Convergence Technology Association]