• Title/Summary/Keyword: transparent materials

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A Study on the Transperancy expressed in Current Fashion(I) - In the Context of Ideal Effect- (복식에 표현된 '투명성'에 관한 연구(I) -관념적 효과를 중심으로-)

  • 정연자
    • Journal of the Korean Society of Costume
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    • v.43
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    • pp.41-52
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    • 1999
  • This study is to compare and analyze two types of 'transparency' concept expressed in architecture and garment which has not only been an important theme in the post-modern expression of architeture but been shown in various types of concept. This study examined the characteristics of transparency and through theoretical studies divided them into four types; frankness(purity ambiguity comparison exposure and eroticism) Purity building would use the matrial which is transparent glasses for the expprssion of its purity and clothing would use the transparent matrial for the expression of the natural beauty of human body and the purity of human of itself. Ambiguity is expressed in the outer side of architecture by duplicating transparent materials and by phenomenon of optical illusion and inflection. On the contrary in garment it is shown in the outward formation of underclothing. Comparison in architecture is expressed by the use of void but opaque materials as well as solid but transparent materials. Extinction is expressed with the visual effect of context of the surrounding by the use of opaque glass and reflexive glass. In garment the effect of comparison is expressed by the use of mixing transparent materials and opaque materials. Building would express the inside of itself by the way of its exposure and clothing would also express its frankness through the human body is partly opened or clossed at the same thime that arises from eroticism of the way of the expression of human feelings.

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은 나노와이어 투명전극

  • Kim, Sang-Ho
    • Proceedings of the Materials Research Society of Korea Conference
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    • 2012.05a
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    • pp.63.2-63.2
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    • 2012
  • One-dimensional nanowires (NW)/nanorods are under intense investigation in materials science due to their potential applications in many electronic devices. Since the properties required for these applications are greatly influenced by their microscopic structures, it is important to understand the relation between the microstructures with their optical and electric properties. In this study, Ag nanowires were synthesized in various dimensions and coated onto PET films to form transparent electrode. Their optical and electrical properties were studied in terms of their microstructures. Highly transparent (>90%), low haze transparent electrode films were successfully fabricated with surface resistance as low as (~50 ${\Omega}$/>).

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Recent Advances in TAOS-TFT

  • Hosono, Hideo;Nomura, Kenji;Kamiya, Toshio
    • 한국정보디스플레이학회:학술대회논문집
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    • 2007.08b
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    • pp.1671-1672
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    • 2007
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Study on Electro Optic Characteristics of In-plane Switching Mode Liquid Crystal Display using Transparent Electrode

  • Song, Il-Sub;Baik, In-Su;Kim, Tae-Man;Lee, Seung-Hee;Kim, Do-Sung;Soh, Hoe-Sub;Kim, Woo-Yeol
    • Journal of Information Display
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    • v.5 no.3
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    • pp.18-24
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    • 2004
  • Voltage-dependent transmittance characteristics associated with various cell parameters have been studied in-plane switching liquid crystal display when both common and pixel electrodes are transparent. When both electrodes are opaque, the transmittance is related to only the distance (I) between electrodes. However, where transparent electrode is used, it is influenced not only the 1but also an electrode width (w) and rubbing angle. In addition, these factors are related to operating voltage which shows maximal transmittance. To maximize the light efficiency of the cell and obtain low operating voltage, the above-mentioned cell parameters need to be optimized.

Optical Simulation of Transparent Electrode for Application to Organic Photovoltaic Cells

  • Jo, Se-Hui;Yang, Jeong-Do;Park, Dong-Hui;Wi, Chang-Hwan;Choe, Won-Guk
    • Proceedings of the Korean Vacuum Society Conference
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    • 2012.02a
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    • pp.440-440
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    • 2012
  • The optical characteristics of transparent electrode with various kind of materials and thickness to be used for organic photovoltaic cells were studied by simulation methodology. It demonstrated that the transmittance varies with the kinds of materials, the number of layers and change in the thickness of each layer. In the case of the structure composed of dielectric/Ag/dielectric, optimized transmittance was higher than 90% at 550 nm and the thickness of the Ag layer was ~10nm. Top and bottom dielectric materials can be changed with different refractive index and extinction coefficient. The relation between the optical transmittance of device and transparent electrode with different refractive indices was discussed as well. By processing numerical simulations, an optimized optical transmittance can be obtained by tunning the thickness and materials of transparent electrode.

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Research Trends in Powder Materials for Solution-based Transparent Conducting Electrode (용액기반 투명전극 분말 재료 연구 동향)

  • Koo, Bon-Ryul;Ahn, Hyo-Jin
    • Journal of Powder Materials
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    • v.24 no.2
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    • pp.153-163
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    • 2017
  • Transparent conducting electrodes (TCEs) are attracting considerable attention as an important component for emerging optoelectronic applications such as liquid crystal displays, touch panels, and solar cells owing to their attractive combination of low resistivity (<$10^{-3}{\Omega}cm$) and high transparency (>80%) in the visible region. The solution-based process has unique properties of an easy fabrication procedure, scalability, and low cost compared to the conventional vacuum-based process and may prove to be a useful process for fabricating TCEs for future optoelectronic applications demanding large scale and flexibility. In this paper, we focus on the introduction of a solution-based process for TCEs. In addition, we consider the powder materials used to fabricate solution-based TCEs and strategies to improve their transparent conducting properties.

Antireflective ZTO/Ag bilayer-based transparent source and drain electrodes for highly transparent thin film transistors

  • Choe, Gwang-Hyeok;Kim, Han-Gi
    • Proceedings of the Materials Research Society of Korea Conference
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    • 2012.05a
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    • pp.110.2-110.2
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    • 2012
  • We reported on antireflective ZnSnO (ZTO)/Ag bilayer and ZTO/Ag/ZTO trilayer source/drain (S/D) electrodes for all-transparent ZTO channel based thin film transistors (TFTs). The ZTO/Ag bilayer is more transparent (83.71%) and effective source/drain (S/D) electrodes for the ZTO channel/Al2O3 gate dielectric/ITO gate electrode/glass structure than ZTO/Ag/ZTO trilayer because the bottom ZTO layer in the trilayer increasea contact resistance between S/D electrodes and ZTO channel layer and reduce the antireflection effect. The ZTO based all-transparent TFTs with ZTO/Ag bilayer S/D electrode showed a saturation mobility of 4.54cm2/Vs and switching property (1.31V/decade) comparable to TTFT with Ag S/D electrodes.

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A Study on The Expressive Characteristics of Transparent Materials in Interior Design (실내디자인에 있어 투명성 재료의 표현 특성에 관한 연구)

  • Lee, Gyoo-Baek
    • Korean Institute of Interior Design Journal
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    • v.18 no.4
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    • pp.43-50
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    • 2009
  • Design trend, transparency, which has been developed under a reflection of current periodic environment, has been exposed to people all over the world through varieties of architecture facade and interior space. As interior space follows this trend, which has difference in showing space from the past, transparency becomes an important measure of showing openness of certain space. Main objective of this research is to understand a characteristics of materials that leads transparency a important measure to the modern interior design, and this will set the range to this applicable materials for appropriate areas of defining transparency in an interior. Characteristic uses of transparent materials found in this research which leads transparency into interior space are described below: First, there are two perspectives in transparency. One is visibility and material wised transparency and the other is conditional and spacial wised transparency. With this knowledge, we can expand a level of transparency with ideas such as clarity, opacity, visible transmission, and reflection, and this broadened range will vary the acceptable materials used to show transparency. Second, transparent materials are used with many different purposes in modern interior space as furnitures, sanitary fixtures, partitions, and other structures. With using modern technology in reforming this materials brought new methods in structure composing. last, transparent materials' expnt pable characteristics made modern interior space to have a control over spacial homogeneity, a simplified octlines, weakened boundaries, and compositional effects by interference and vision.

Light Effects on the Bias Stability of Transparent ZnO Thin Film Transistors

  • Shin, Jae-Heon;Lee, Ji-Su;Hwang, Chi-Sun;KoPark, Sang-Hee;Cheong, Woo-Seok;Ryu, Min-Ki;Byun, Chun-Won;Lee, Jeong-Ik;Chu, Hye-Yong
    • ETRI Journal
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    • v.31 no.1
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    • pp.62-64
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    • 2009
  • We report on the bias stability characteristics of transparent ZnO thin film transistors (TFTs) under visible light illumination. The transfer curve shows virtually no change under positive gate bias stress with light illumination, while it shows dramatic negative shifts under negative gate bias stress. The major mechanism of the bias stability under visible illumination of our ZnO TFTs is thought to be the charge trapping of photo-generated holes at the gate insulator and/or insulator/channel interface.

Transparent OLED Lighting Panel Design Using Two-Dimensional OLED Circuit Modeling

  • Han, Jun-Han;Moon, Jaehyun;Cho, Doo-Hee;Shin, Jin-Wook;Joo, Chul Woong;Hwang, Joohyun;Huh, Jin Woo;Chu, Hye Yong;Lee, Jeong-Ik
    • ETRI Journal
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    • v.35 no.4
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    • pp.559-565
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    • 2013
  • In this work, we develop a simulation method to predict a two-dimensional luminance distribution method using a circuitry simulation. Based on the simulation results, we successfully fabricate large area ($90mm{\times}90mm$) transparent organic light-emitting diode panels with high luminance uniformity.