• Title/Summary/Keyword: SAM-X

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Routes to Improving Performance of Solution-Processed Organic Thin Film Transistors

  • Li, Flora M.;Hsieh, Gen-Wen;Nathan, Arokia;Beecher, Paul;Wu, Yiliang;Ong, Beng S.;Milne, William I.
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.1051-1054
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    • 2009

  • This paper investigates approaches for improving effective mobility of organic thin film transistors (OTFTs). We consider gate dielectric optimization, whereby we demonstrated >2x increase in mobility by using a silicon-rich silicon nitride ($SiN_x$) gate dielectric for polythiophene-based (PQT) OTFTs. We also engineer the dielectric-semiconductor ($SiN_x$-PQT) interface to attain a 27x increase in mobility (up to 0.22 $cm^2$/V-s) using an optimized combination of oxygen plasma and OTS SAM treatments. Augmentative material systems by combining 1-D nanomaterials (e.g., carbon nanotubes, zinc oxide nanowires) in an organic matrix for nanocomposite OTFTs provided a further boost in device performance.

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Investigation About Quality Control of General X-ray System

  • Kang, Byung-Sam;Son, Jin-Hyun;Dong, Kyung-Rae
    • Korean Journal of Digital Imaging in Medicine
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    • v.13 no.4
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    • pp.157-164
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    • 2011

  • This test is for checking investigation about quality control of general X-ray system in clinic and hospital. We compared general X-ray system of clinic and hospital which are selected freely in the metropolitan area using PMX-III and carried out quality control. Carried out Kilovoltage test, mR/mAs output test, Light filed/Beam alignment test, Half value layer test. Most of test result are appeared that failure rates of clinic is higher than hospital one. Therefore, we should lower failure rates through regular quality control and make environment which can get high quality image.

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Effect of Radiation Resistance by Chitosan through Micronuclei Test after X-ray Irradiation (키토산의 방사선 저항 효과에 관한 연구)

  • Kim Jung-Sam
    • Journal of The Korean Radiological Technologist Association
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    • v.28 no.1
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    • pp.34-38
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    • 2002

  • As the radiation is widely used in atomic power generation and medical parts. If it was not very carefully treated, Especially, to consideration of the perspicacity ability of radiation or radionuclide will be caused cytogenetic damages. To evaluation of

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