용액공정 유기 전자소자응용을 위한 기능성 유기재료의 합성 및 특성에 관한 연구

Abstract

ABSTRACT Synthesis and Characteristics of Functional Organic Materials for Solution-Processed Organic Electronics

Koh kyung kuk Advisor : Prof. Lee Jae Kwan, Ph.D, Department of Carbon materals Graduate School of Chosun University

Solution-processable Organic small molecules have been widely applied for Organic electronics. In recent years Organic small molecules show high absorption which can be easily purified and deposital metal onto flexible substrates at low cost. The donor-acceptor-donor (D-A-D) structure Organic small molecules using donor and acceptor groups has proved to be an efficient way to improved the properties of Organic Photovoltaics. The synthesis of small molecules with new D-A-D type structures with a donor group using triphenylamine. Benzothiadiazole, Quinoxaline, Thiadiazolo quinoxaline, Pyrazino ​quinoxaline with an acceptor groups which is also known as push-pull structure. New D-A-D type structure were characterized using UV-vis spectrum, photoluminescence, CV-curve, band gap energy, hole mobility and quantum yield. Hence, the new D-A-D type structures will be expected high efficiency Organic Photovoltaics and furthermore Perovskite solar cells, Dye-sensitized solar cell and OLED or transistor.