http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Scanning probe microscopy를 이용한 SiO₂에서 실리콘 나노크리스탈의 전기적 특성분석
金政民,姜致中,金容商 明知大學校 産業技術硏究所 2005 産業技術硏究所論文集 Vol.24 No.-
Scanning capacitance microscopy (SCM) and Electrostatic force microscopy (EFM) are used for characterizing the local electrical properties of a Si nanocrystals (NCs). The Si nanocrystal samples were produced by aerosol techniques followed by a sharpening oxidation. The size of Si NCs is in the range of 1O-4O㎚ and deposited on a silicon substrate with a density of around 1O^(11)/㎠. Trapping phenomena of electrons and holes are observed and analyzed through the SCM, EFM images and capacitance spectroscopy. These localized properties of each nanocrystai are compared with C-V characteristics of the conventional MOS capacitor structure. We also present electrical properties of Si NCs with respect to the size and density.
Piezoresistive Microcantilever를 이용한 바이오 센서
羅光浩,金容商 明知大學校 産業技術硏究所 2005 産業技術硏究所論文集 Vol.24 No.-
A microcantilever-based biosensor with piezoresistor has been fabricated using surface micromachining technique, which is cost effective and simplifies a fabrication procedure. To evaluate the characteristics of the cantilever, the cystamine terminated with thiol was covalently immobilized on the gold-coated side of the cantilever and glutaraldehyde that would be bonded with amine group in the cystamine was injected subsequently. This process was characterized by measuring the deflection of the cantilever in real time monitoring. Using a piezoresistive read-out and a well-known optical beam deflection method as well carried out the measurement of deflection.
金主豪,金容商 명지대학교 산업기술연구소 2005 産業技術硏究所論文集 Vol.24 No.-
A microsystem with capillary electrophoresis (CE) and electrochemical detector (ECD) was developed. The microfabricated CE-ECD systems are adequate for a disposable type and the characteristics are optimized for an application to the electrochemical detection. The system was realized with polydimethylsiloxane (PDMS)-glass chip and indium tin oxide electrode. The injection and separation channels (80 ㎛ wide × 40 ㎛ deep) were produced by moulding a PDMS against a micro fabricated master with relatively simple and inexpensive methods. ITO electrode was fabricated by patterning the ITO film deposited on a fusion glass. A capillary electrophoresis and a three-electrode electrochemical detector were fabricated on the same chip. The CE-chip has been tested successfully by detecting dopamine and catechol within a very short time of around 80 sec using an electric field of 60 V/㎝. This microchip is cost effective and adequate for a disposable sensor.
Scanning Probe Microscopy를 이용한 자기조립 구조 Bio-molecule 및 DNA의 특성 분석
兪炅我,姜致中,金容商 明知大學校 産業技術硏究所 2005 産業技術硏究所論文集 Vol.24 No.-
In this paper, we characterized of assembly-structure of bio-molecule on the gold surface by Scanning probe microscopy(SPM), aiming to apply to the biosensors and bioelectronic systems. For the formation of the molecular structures, gold substrate was deposited on the silicon substrate first, and the cystamine terminated with thiol and amine group. Thiol group of cystamine was covalently immobilized on the gold surface. By characterizing this self assembled interaction with SPM. And Bio-molecules such as DNA, protein might interact with substrate where they are deposited, resulting in the change of conformation and physical, electrical properties. So, it is important to analyze properly the local characteristics of those molecules w.r.t. the ambient environment. By using scanning probe microscopy, we could manipulate DNA molecules electrically and measure their properties.