Solution-processed inorganic nanomaterials for efficient polymer light-emitting diodes = 용액 공정 기반 무기 나노 소재 도입을 통한 고효율 고분자 발광 소자 연구

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Organic light-emitting diodes (OLEDs) have studied and developed over last few decades due to their many advantages over conventional technologies for displays and solid-state lightings, for example, flexible form factor, cheap and easy processing. But there are two obstacles to be overcome for OLEDs to be extend their full potentials: the efficiency and stability of the devices. In this research, solution-processed, inorganic nanomaterials were inserted to improve both the efficiency and stability of the OLEDs. In particular, metal nanoparticles and inorganic hybrid sols were used in each chapters. In chapter 2, silver nanoparticles were synthesized by solution-phase reaction and introduced on the top of the anode of the polymer light-emitting diodes with well-dispersion state. The adapted silver nanoparticles act as the resonance spots with emissive materials to enhance the overall efficiency of the blue polymer light-emitting diodes, which are suffer from the lack of the efficient emitting materials with desired emission spectrum. In chapter 3, the light-extraction patterns were fabricated and transferred by simple self-assembly and soft lithography. The silica and alumina hybrid network is found to serve not only the light-extraction but also gas barrier property. Based on the light-extraction patterned composed of silica and alumina hybrid network, efficient, stable and flexible polymer light-emitting diodes were fabricated.
Advisors
Park, O Okresearcher박오옥researcher
Description
한국과학기술원 :생명화학공학과,
Publisher
한국과학기술원
Issue Date
2016
Identifier
325007
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 생명화학공학과, 2016.8 ,[vii, 97 p. :]

Keywords

OLEDs; PLEDs; LSPR; Light-extraction; out-coupling; flexible OLEDs; 유기 발광 소자; 고분자 발광 소자; 유연 발광 소자; 광 추출 구조; 금속 나노 입자; 국소 표면 플라즈몬 공명

URI
http://hdl.handle.net/10203/222153
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=663114&flag=dissertation
Appears in Collection
CBE-Theses_Ph.D.(박사논문)
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