http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Lanthanide-Doped Upconversion Nanomaterials: Recent Advances and Applications
강동규,전은영,김수연,이준석 한국바이오칩학회 2020 BioChip Journal Vol.14 No.1
Lanthanide-doped upconversion nanomaterials are well known for converting near-infrared (NIR) excitation photons into visible, ultraviolet, and NIR emission photons. Excitation of NIR light offers low autofluorescence background and high penetration depth in biological environments due to the reduced light scattering. Consequently, these have attracted considerable interest because their exceptional optical properties have led to applications in diverse areas such as bioassays, biomedical imaging, and forensics; these properties are, namely: large anti-Stokes shifts, sharp emission spectra and long excited-state lifetimes. The nanomaterials can be utilized for a variety of applications including detection of various analytes, bioimaging, therapies, energy conversion, and security. In this review, we briefly describe the upconversion luminescence process, effective synthetic approaches, and recent literature that elucidate the exceptional properties of these materials and its applications.
강동규,박민욱,정광운 한국공업화학회 2017 한국공업화학회 연구논문 초록집 Vol.2017 No.1
To develop a novel polymeric film with optical anisotropy, triphenylene-based discotic liquid crystal (DLC) monomer was synthesized. The DLC shows columnar liquid crystalline (LC) ordered structure and its microscopic molecular orientation was successfully controlled by manipulation of orientation of nematic LC medium and surface alignment layer. Macroscopic morphology of polymeric pattern was obtained by photo-polymerization with patterned photo-mask. The director of DLC columns in the stripe-pattern is oriented perpendicular to the surface alignment direction regardless of the macroscopic pattern morphology. The optical anisotropy of patterned DLC network was observed using polarized optical microscopy (POM) analysis. <sup>**</sup>This work was mainly supported by BRL (2015042417), Mid-Career Researcher Program (2016R1A2B2011041) and the BK21 Plus program of Korea.