• Title/Summary/Keyword: Transparent Layer

Search Result 683, Processing Time 0.036 seconds

Development of Dry Films of Lead-free Transparent Dielectrics for PDP (PDP용 무연 투명유전체의 Dry Film 개발)

  • Lee Ji-Hun;Bang Jae-Cheol
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.6 no.6
    • /
    • pp.497-501
    • /
    • 2005
  • Dry film method was applied to fabricate lead-free transparent dielectric fur PDP(Plasma Display Panel). From various slurry compositions, it was able to find out the. best composition for producing high density green sheet. The slurry exhibited shear thinning characteristics which are known to be suitable fur producing a high quality green sheet. The thermal expansion coefficient of the fabricated transparent dielectric was measured to be $97{\times}10^{-7}/^{\circ}C$ which is close to the value of the glass substrate(PD-200). Cross sectional SEM of the transparent dielectric layer on PD-200 showed that the two layers were well attached each other with no observable gaps between them.

  • PDF

High-functional Transparent Electrode Design and Shielding Effect (금속산화물 기반의 고성능 투명 전극 및 전자파 차단 효과)

  • Seongwon Cho;Wu-shin Cha;Junheon Ha;Junsik Lee;Jiwon Kang;Nguyen Thanh Tai;Joondong Kim
    • Current Photovoltaic Research
    • /
    • v.11 no.1
    • /
    • pp.13-17
    • /
    • 2023
  • Functional transparent electrode was achieved by metal oxide-metal-Metal oxide (OMO) structure. Tailoring of metal oxide and metal layers, optically transparent and electrically excellent OMO films were investigated. Silver (Ag) is adopted for the metal layer and Ag oxide (AgO) is reactively formed by flowing O2 gas during the sputtering process. This spontaneous AgO formation from Ag simultaneously provides the good electrical interface with high transparency. Due to the feature of transparent electrode of OMO, it endows the shielding effect (SE) function of electromagnetic interference. Optically transparent and electrically conductive OMO electrode shows the high transmittance (83.7%) and low sheet resistance (6.5 Ω/☐) with SE of 29.54 dB.

Effect of Particle Size Distribution of Glass Frit on the Transparency of Transparent Dielectric Layer for Plasma Display Panel

  • Park, Ji-Su;Han, Sun-Mi;Hwang, Jong-Hee;Lim, Tae-Young;Kim, Kwang-Jin;Masaki, Takaki
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2004.08a
    • /
    • pp.555-557
    • /
    • 2004
  • We report the effect of the particle size (D50) and PSD (Particle Size Distribution) of glass frit on the transparency of transparent dielectric layer of PDP. The milling efficiency of wet milling with water was the best among the dry milling, wet milling with IPA and wet milling with water. The transparency increased with the reduction of particle size of glass frit as the milling time increased. Also the transparency changed by the PSD of glass frit. Glass frits of broad PSD showed high transparency compared with the glass frits of sharp PSD.

  • PDF

Mechanically Flexible and Transparent Zinc Oxide Thin Film Transistor on Plastic Substrates (Plastic 기판 상의 투명성과 유연성을 지닌 Zinc Oxide 박막 트랜지스터)

  • Park, Kyung-Yea;Ahn, Jong-Hyun
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
    • /
    • 2009.06a
    • /
    • pp.10-10
    • /
    • 2009
  • We have fabricated transparent and flexible thin film transistor(TFT) on polyethylene terephthalate(PET) substrate using Zinc Oxide (ZnO) and Indium Tin Oxide (ITO) film as active layer and electrode. The transfer printing method was used for printing the device layer on target plastic substrate at room temperature. This approach have an advantage to separate the high temperature annealing process to improve the electrical properties of ZnO TFT from the device process on plastic substrate. The resulting devices on plastic substrate presented mechanical and electrical properties similar with those on rigid substrate.

  • PDF

Surface Plasmon Resonance Effect of Ag Layer Inserted in a Highly Flexible Transparent IZTO/Ag/IZTO Multilayer Electrode for Flexible Organic Light Emitting Diodes

  • Park, Ho-Kyun;Jun, Nam-Ho;Choi, Kwang-Hyuk;Kim, Han-Ki
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2008.10a
    • /
    • pp.601-604
    • /
    • 2008
  • We report on the Ag thickness effect on the electrical and optical properties of indium zinc tin oxide (IZTO)-Ag-IZTO multilayer electrode grown on a PET substrate and the surface plasmon effect of Ag layer on the optical properties of IZTO-Ag-IZTO electrode. Using an IZTO-Ag-IZTO multilayer with a total thickness below ~80 nm, we can obtain high-quality flexible electrode with very low sheet resistance, high transmittance, high work function and superior flexibility.

  • PDF

Transparent ZnO Transistor Array by Means of Plasma Enhanced Atomic Layer Deposition

  • Kopark, Sang-Hee;Hwang, Chi-Sun;Kwack, Ho-Sang;Lee, Jung-Ik;Chu, Hye-Yong
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2006.08a
    • /
    • pp.601-604
    • /
    • 2006
  • We have developed ZnO TFT array using conventional photolithography and wet etching processes. Transparent 20 nm of ultra thin ZnO film deposited by means of plasma enhanced atomic layer deposition at $100^{\circ}C$ was used for the active channel. The ZnO TFT has a mobility of $0.59cm^2/V.s$, a threshold voltage of 7.2V, sub-threshold swing of 0.64V/dec., and an on/off ratio of $10^8$.

  • PDF

Emission Property of Organic EL Device using Polyaniline Transparent Electrode (Polyaniline 투명전극을 사용한 유기EL 소자의 발광 특성)

  • Kim, Ju-Seung;Kim, Dae-Jung;Gu, Hal-Bon
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
    • /
    • 2001.11b
    • /
    • pp.374-377
    • /
    • 2001
  • We have synthesized poly(3-hexylthiophene)(P3HT), which is the most famous conducting polymer and studied the optical properties of P3HT. And then fabricated the device using P3HT as an emitting layer. For the improve of hole injection from ITO electrode to P3HT emitting layer, we use transparent polyaniline(PANI) electrode. In the voltage-current-luminance characteristics of ITO/PANI/P3HT/LiF/Al device which use the PANI film synthesised during 5 cycle, the device turn on at the 2V and the luminance of $218nW/cm^{2}$ obtained at 12V. External quantum efficiency of ITO/PANI/P3HT/LiF/Al increased at 8V than that of ITO/P3HT/LiF/Al device.

  • PDF

Preparation and Characteristics of Transparent Anti-static Films (투명 대전방지 필름 제조 및 특성)

  • 김종은;심재훈;서광석;윤호규;김명화;황공현
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
    • /
    • v.13 no.1
    • /
    • pp.52-59
    • /
    • 2000
  • In order to develop the transparent anti-static film with higher than 80% transparency to visible light, organic conductive compounds, N-methyl phenazinium 7,7,8,8-tetracyanoquinonedimethane (TCNQ) com-plex salts was synthesized and bar-coated on the polythylene terephthalate (PET) film using polymer binders. The best surface properties were obtained when acrylic binder was used. A single layer of TCNQ made of a acrylic binder showed a surface resistance of 10\ulcorner $\Omega$/ , a conductivity of 10\ulcorner S/cm, and a transparency of 75%. An optical microscopic examination revealed that the binder was first solidi-fied on the surface of PET film over which the needle-shaped TCNQ crystals were grown. An acrylic polyol coating over the TCNQ layer improved the transparency to 87%, becuase the acrylic polyol covers the surface of TCNQ crystals to reduce the surface roughness. This conductive material has thermal stability at room temperature and 4$0^{\circ}C$ over 4,000 h.

  • PDF

Emission Property of Organic EL Device using Polyaniline Transparent Electrode (Polyaniline 투명전극을 사용한 유기EL 소자의 발광 특성)

  • 김주승;김대중;구할본
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
    • /
    • 2001.11a
    • /
    • pp.374-377
    • /
    • 2001
  • We have synthesized poly(3-hexylthiophene)(P3HT), which is the most famous conducting polymer and studied the optical properties of P3HT. And then fabricated the device using P3HT as an emitting layer. For the improve of hole injection from ITO electrode to P3HT emitting layer, we use transparent polyaniline(PANI) electrode. In the voltage-current-luminance characteristics of ITO/PANI/P3HT/LiF/Al device which use the PANI film synthesised during 5 cycle, the device turn on at the 2V and the luminance of 218 nW/$\textrm{cm}^2$ obtained at 12V. External quantum efficiency of ITO/PANI/P3HT/LiF/Al increased at 8V than that of ITO/P3HT/LiF/Al device.

  • PDF