• Title/Summary/Keyword: ITO-glass

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The Characterization of Structural and Optical Properties for rf Magnetron Sputtered $(BaSr)TiO_3$ Thin Film (Rf Magnetron Sputtering 방법에 의하여 제조된 $(BaSr)TiO_3$ 박막의 구조적, 광학적 특성 고찰)

  • Kim, Tae-Song;Oh, Myung-Hwan;Kim, Chong-Hee
    • Analytical Science and Technology
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    • v.6 no.2
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    • pp.239-246
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    • 1993
  • The structure of $(BaSr)TiO_3$ thin film deposited on ITO coated glass, bare glass and (100) Si substrates was not changed, but the crystallinity was improved by the polycrystalline ITO layer and (100) Si substrate. The composition of $(BaSr)TiO_3$ thin film deposited on ITO coated glass was nearly stoichiometric ((Ba+Sr)/Ti=1.08~1.09) and very uniform through all deposition process. But as the deposition temperature increases, the interdiffusion between grown thin film and ITO layer and between ITO layer and base glass is severer. $(BaSr)TiO_3$ thin film deposited on ITO coated glass substrate was highly transparent. The refractive index($n_f$) of $(BaSr)TiO_3$ thin film deposited on ITO coated glass was 2.138~2.286 as a function of substrate temperature.

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Development of Scratch Detecting Algorithm for ITO Coated Glass using Adaptive Logical Thresholding Method (ALT기법을 이용한 ITO 코팅유리의 결함 검출 기법 개발)

  • 김면희;이상룡
    • Journal of the Korean Society for Precision Engineering
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    • v.20 no.8
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    • pp.108-114
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    • 2003
  • This research describes a image-processing technique for the scratch detecting algorithm for ITO coated glass. We use the modified logical thresholding method (called adaptive logical thresholding method) for binarization of gray-scale glass image. This method is useful to the algorithm for detecting the scratch of ITO coated glass automatically without need of any prior information of manual fine-tuning of parameters.

The Characteristic Self-assembly of Gold Nanoparticles over Indium Tin Oxide (ITO) Substrate

  • Li, Wan-Chao;Lee, Sang-Wha
    • Bulletin of the Korean Chemical Society
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    • v.32 no.4
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    • pp.1133-1137
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    • 2011
  • Ordered array of gold nanoparticles (Au NPs) over ITO glass was investigated in terms of ITO pretreatment, particle size, and diamines with different chain length. Owing to the indium-tin-oxide (ITO) layer coated on the glass, the substrate surface has a limited number of hydroxyl groups which can produce functionalized amine groups for Au binding, which resulted in the loosely-packed array of Au NPs on the ITO surface. Diamine ligand as a molecular linker was introduced to enhance the lateral binding of adjacent Au NPs immobilized on the amine-functionalized ITO glass, consequently leading to the densely-packed array of Au NPs over the ITO substrate. The molecular bridging effect was strengthened with the increase of chain length of diamines: C-12 > C-8. The packing density of small Au NPs (< 40 nm) was significantly increased with the increase of C-8 diamine, but large Au NPs (> 60 nm) did not produce densely-packed array on the ITO glass even for the dosage of C-12 diamine.

Relationship between Working Parameter and Surface Nniformity of ITO coated Glass Substrate using Regression Analysis (회귀분석을 이용한 ITO 코팅유리기판의 표면균일도와 운전변수의 상관관계 분석)

  • 김면희;이상룡;이태영;배준영
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2004.10a
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    • pp.1353-1356
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    • 2004
  • In recent year, OLED(organic light emitted display) is used as the next generation device of FPD. OLED have been replacing the flat panel display device such as LCD, STN-LCD and TFT because this device is more efficient, economic and simple than those FPD devices, and this need not backlight system for visualization. The performance and efficiency of OLED is related with surface defect of ITO coated glass substrate. The typical surface defect of glass substrate is nonuniformity and bad surface roughness. ITO coated glass substrate is destroied for inspection about surface roughness and non-uniformity. Generally detection of the defects in the surface for ITO coated glass substrate is dependent on operator's experience. In this research, relationship between working parameter and surface non-uniformity is studied using regression analysis.

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Deveopement of Scratch Detection Algorithm for ITO coated Glass using Image Processing Technique (화상처리를 이용한 ITO 코팅 유리의 결함검출기법 개발)

  • 김면희;배준영;이태영;안경철;이상룡
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2003.06a
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    • pp.1275-1278
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    • 2003
  • This research describes a image-processing technique for the scratch detecting algorithm for ITO coated glass. The light emitter efficiency of Organic EL has a failing-off in quality due to many causes. One of the many causes was the defects of the surface in ITO coated glass. We use the logical level thresholding method for binarization of gray-scaled glass image. This method is useful to the algorithm for detecting scratch of ITO coated glass automatically without need of any prior information of manual fine tuning of parameters.

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Effect of Solar Cell Cover Glass on Solar Cell Performance (태양전지 보호유리가 태양전지 성능에 미치는 영향)

  • Choi, Young-Jin;Wang, Jin-Suk
    • Proceedings of the KIEE Conference
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    • 1996.07c
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    • pp.1421-1423
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    • 1996
  • In this study, the effect of solar cell cover glass on the solar cell performance is evaluated. Silicon solar cell (active area:4*6cm, efficiency:12.6% at AMO condition) is used for this study. ITO(Indium tin Oxide) film thickness of the ITO/AR/substrate glass/solar cell structure samples are $40{\AA}$, $60{\AA}$, $160{\AA}$, $240{\AA}$ respectively. The solar cell maximum output power on the stacking structure variations showed 465mW in the AR/ITO/substrate glass/solar cell, and minimum output power showed 403mW in the AR/substrate glass/solar cell. The maximum output power of the solar cell on the ITO thickness variations of the ITO/AR/substrate glass/solar cell showed 460mW at $40{\AA}$ then decrease output power as ITO thickness increase. For environment tests, all samples are exposed UV light in the vacuum chanber. The output power degradation of AR(UVR)/substrate glass/solar cell stacking structure is small compared with ITO/AR(UVR)/substrate glass/solar cell stacking structure.

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Inkjet patterning of Aqueous Silver Nano Sol on Interface-controlled ITO Glass

  • Ryu, Beyong-Hwan;Choi, Young-Min;Kong, Ki-Jeong
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07b
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    • pp.1552-1555
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    • 2005
  • We have studied the inkjet patterning of synthesized aqueous silver nano-sol on interface-controlled ITO glass substrate. Furthermore, we designed the conductive ink for direct inkjet patterning on bare ITO glass substrate. The first, the highly concentrated polymeric dispersant-assisted silver nano sol was prepared by variation of molecular weight and control of initial nucleation and growth of silver nanoparticles. The high concentration of batch-synthesized silver nano sol was possible to 40 wt%. At the same time the particle size of silver nanoparticles was below $10{\sim}20nm$. The second, the synthesized silver nano sol was inkjet - patterned on ITO glass substrate. The connectivity and width of fine line depended largely on the wettability of silver nano sol on ITO glass substrate, which was controlled by surfactant. The relationship was understood by wetting angle. The fine line of silver electrode as fine as $50{\sim}100\;{\mu}m$ was successfully formed on ITO glass substrate. The last, the direct inkjet-patternable silver nano sol on bare ITO glass substrate was designed also.

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Development of detection algorithm of the defected in the surface for ITO coated glass using image processing technique (영상처리기법을 이용한 유기 EL용 ITO 코팅 유리의 표면결함 검출 알고리즘 개발)

  • Kim, Myun-Hee;Park, Se-Hong;Lee, Sang-Ryong;Kim, Gwan-Soo
    • Proceedings of the KSME Conference
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    • 2003.04a
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    • pp.1173-1178
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    • 2003
  • Recently, Organic EL(Electro Luminescence) is interested in Flat Panel Display(FPD) department of new generation. This paper describes a image processing algorithm for the scratch detecting for ITO coated glass. We use the logical level thresholding method for binarization of gray-scaled glass image. This method is useful to the algorithm for detecting scratch of ITO coated glass automatically without need of any prior information of manual fine tuning of parameters.

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Characteristics of ITO Films Grown on an Oxygen Plasma Treated Glass Substrate (유리기판에 O2 플라즈마 표면처리 후 제작된 ITO 박막의 특성)

  • Chae, Hong-Chol;Hong, Joo-Wha
    • Korean Journal of Metals and Materials
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    • v.50 no.7
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    • pp.545-548
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    • 2012
  • The optical and electronic properties of Indium Tin Oxide (ITO) thin films deposited on a RF-plasma treated glass substrate were investigated by X-Ray Photoelectron Spectroscopy (XPS), Ultra-violet Photoelectron Spectroscopy (UPS), Reflected Electron Energy Loss Spectroscopy (REELS). The modification of glass substrates was carried out by varying the time of the plasma surface treatment in an oxygen atmosphere. The focus of this research was to examine how the optical and electronic properties of ITO thin films change with the plasma treatment time. The surface energy increased since the carbon bonds were removed from the surface after the glass substrate received the surface treatment. The ITO thin films produced on the glass substrate with surface treatment showed that the high optical transmittance was approximately 85%. The measured band gap energy was as high as 3.23 eV when the plasma treatment time was 60 s and the work function after the treatment was increased by 0.5 eV in comparison to that before the treatment of 60 s. The ITO thin film exhibited an excellent sheet resistance of $2.79{\Omega}/{\Box}$. We found that the optical and electronic properties of ITO thin films can be improved by RF-plasma surface treatment.

Carrier Design by Temperature Distribution Analysis in Chamber of ITO Deposition Inline Sputter (ITO 증착용 인라인 챔버 온도 분포해석에 의한 캐리어장치의 설계)

  • Lee, Sang-Jae;Choi, Ju-Ran;Choi, Seong-Dae
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.14 no.1
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    • pp.92-97
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    • 2015
  • The design of the glass-carrier was studied using simulations of the temperature distribution of an ITO deposition inline-sputter process. The temperature distribution was simulated in Heating Chamber 7, and in the ITO Deposition Chambers 8 and 9. The temperature distribution of the glass sheets was low in both the lower and upper lines. Moreover, it was observed that the temperature in Chamber 8 significantly affected the temperature in Chamber 9, and that the latter was hotter. The rear of the chambers were subjected to more heating than the fronts, so the temperature range at the back was wider. Redesigning the shape of the carrier made it possible to load more glass sheets on the glass carrier, and to make deposits on the ITO glass at higher temperature, over a wider area.