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Hi티오펜 소중합체 박막 트랜지스터 제작을 위한 전극 형성에 관한 연구
최종선 弘益大學校 科學技術硏究所 1998 科學技術硏究論文集 Vol.9 No.2
Organic semiconductors based on conjugated thiophene oligomer have great potential to be utilized as an active layer for electronic and optoelectronic devices. In this study, α-sexithiophene(α-6T) thin films and various electrode materials were deposited by Organic Molecular Beam Deposition(OMBD) and vacuum evaporation respectively. Those films were photolithographically patterned for measurements. Electrical characterization of the contacts between α-6T film and various electrode metal were performed using Transmission Length Model(TLM) method.
최종선,Saidumarkhon Saidakhmadov,김소연 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.2
In the past decades, nanomaterials that are responsive to light have revolutionized the field of cancer theranostics. However, light-responsive theranostics systems have shown limitations in application to the medical area such as damaging to normal tissue and low penetration depth. Nowadays, lanthanide-doped upconversion nanoparticles (UCNPs) which have strong upconversion luminescence (UCL), robust photostability, deep penetration in deep tissue and high signal-to-noise ratio have been intensively studied for near-infrared (NIR)-triggered photodynamic therapy (PDT). In this study, UCNPs composed of multi-shell structure were synthesized by thermal decomposition method. The surface modification of UCNPs was demonstrated for bioimaging and PDT applications. In addition, PDT effects of the UCNPs-based nanoplatform were investigated using two types of cancer cell lines.
Upconversion Nanoparticles with Multicolor Tunability for Biosensing Applications
최종선,김소연 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.1
The last few decades, lanthanide-doped up conversion nanoparticles (UCNPs), which can emit visible light under near-infrared irradiation, are regarded as a new generation of nanoprobes due to their unique optical properties such as improved signal-to-noise ratio, narrow emission bandwidth, high resistance to photobleaching and zero autofluorescence. Because of these characteristics, UCNP-based systems are receiving great attention in many fields such as multiplexed bioimaging, bio detection, display, other optical technologies. In this study, UCNPs with various colors were synthesized by controlling feed composition. Their physicochemical and photoluminescence properties were investigated. The surface modification of UCNPs for biosensing was also conducted.