http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Tension assisted metal transfer of graphene for Schottky diodes onto wafer scale substrates
Lee, Jooho,Lee, Su Chan,Kim, Yongsung,Heo, Jinseong,Lee, Kiyoung,Lee, Dongwook,Kim, Jaekwan,Lee, Sunghee,Lee, Chang Seung,Nam, Min Sik,Jun, Seong Chan IOP 2016 Nanotechnology Vol.27 No.7
<P>We developed an effective graphene transfer method for graphene/silicon Schottky diodes on a wafer as large as 6 inches. Graphene grown on a large scale substrate was passivated and sealed with a gold layer, protecting graphene from any possible contaminant and keeping good electrical contact. The Au/graphene was transferred by the tension-assisted transfer process without polymer residues. The gold film itself was used directly as the electrodes of a Schottky diode. We demonstrated wafer-scale integration of graphene/silicon Schottky diode using the proposed transfer process. The transmission electron microscopy analysis and relatively low ideality factor of the diodes indicated fewer defects on the interface than those obtained using the conventional poly(methyl methacrylate)-assisted transfer method. We further demonstrated gas sensors as an application of graphene Schottky diodes.</P>
Lee, Sungwoo,Lim, Jaekwan,Cha, Jinmyung,Lee, Jin-Kyu,Ryu, Yeon Hee,Kim, SungChul,Soh, Kwang-Sup Hindawi Publishing Corporation 2013 Evidence-based Complementary and Alternative Medic Vol.2013 No.-
<P>Fluorescent nanoparticles (FNPs) which were injected into a tumor tissue flowed out through the blood and lymph vessels. The FNPs in blood vessels remained only in the order for few minutes while those in lymph vessels remained for a long time disappearing completely in 25 hours. We found a primo vessel inside a lymph vessel near a blood vessel, and FNPs remained in the primo vessel for longer than 25 hours. In addition, we examined in detail the residual time characteristics of lymph vessels because it could be useful in a future study of fluid dynamical comparison of the three conduits. These residual time characteristics of FNPs in the three kinds of vessels may have implications for the dynamics of nanoparticle drugs for cancer chemotherapy.</P>
Lee, Hyun-Jun,Kim, Hyeong-Ju,Lee, Eung-Chang,Kim, Jaekwan,Park, Soo Young Wiley (John WileySons) 2018 Chemistry - An Asian Journal Vol.13 No.4
<P>A highly fluorescent (phi(F)=0.60) and water-soluble two-dimensional (2D) honeycomb-shaped supramolecular organic framework (SOF) was successfully synthesized in pure aqueous solution via self-assembly of novel cyanostilbene-functionalized trilateral guest molecules and cucurbit[8]uril hosts. The size of this fluorescent 2D SOF was >500nm in diameter, 1.7nm in thickness, and 3.9nm in the honeycomb pore diameter. This 2D SOF holds potential as a new all-organic photosensitizer template for photocatalytic H-2 evolution from pure water.</P>
Lee, Jeong Yub,Kim, Yongsung,Han, Seunghoon,Kim, Jaekwan,Yoon, Jae Woong,Lee, Ki Young,Song, Seok Ho,Yang, Kiyeon,Lee, Chang Seung IOP 2019 Nanotechnology Vol.30 No.4
<P>A low-temperature laser crystallization is newly devised for producing polycrystalline silicon (poly-Si) thin films of low-loss, low surface roughness enough for nanoscale patterning, applicable to practical Si metasurface elements on complementary metal-oxide semiconductor (CMOS) electronic architectures in visible lights. The method is based on dielectric encapsulation of an amorphous Si film and subsequent laser-induced local crystallization. Such poly-Si thin film yields order-of-magnitude smaller surface roughness and grain size than those obtained with the conventional laser annealing processes. The mechanism of the formation of small and uniform crystalline grains during solidification is studied to ensure the smooth surfaces enough for nanoscale patterning. By obtaining root mean square of surface roughness <2.49 nm and extinction coefficient <4.8?×?10<SUP>–2</SUP> at 550 nm, visible metasurface color-filter elements are experimentally demonstrated with the resonant transmission-peak efficiency approaching ∼85%. This low-loss poly-Si metasurface is favorably compatible with embedded CMOS electronic architectures in contrast to the conventional thermal annealing processes that often cause failure of electrical device functionalities due to delamination and material-property degradation problems. The proposed fabrication in this study provides a practical method for further development of various Si metasurfaces in the visible domain and their integration with CMOS electronic devices as well.</P>
이재관(Jaekwan Lee) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
In this study we propose an adaptive vehicle dynamic model to design an advanced driver assistance system for lane keeping control to satisfy both driving stability and lane tracking. This vehicle dynamic model has a special structure which makes transform parameters of vehicle dynamic model based on tire pressure and vehicle speed in real time. The feasibility of this vehicle dynamic model is confirmed by experimental results measured in actual driving conditions.
이재관(Jaekwan Lee) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
The driver plans a path by preview and controls the lateral deviation of vehicle from the planned path via the steering wheel. However, the traveling vehicle is always affected by unknown lateral disturbances. This paper presents a design method of a lateral driving assistant system based on functional architecture in order to optimize both software and hardware components. Moreover, the control strategy in this paper is not a class of fully automated driving systems but a class of systems for reducing the driver’s corrective steering effort to keep the vehicle at the desired lane in the travel path.