• Title/Summary/Keyword: Cu-phthalocyanine

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A Study on Photosensitization Mechanism of Phthalocyanines with LB Films (LB박막을 이용한 프탈로시아닌의 광증감 기구에 관한 연구)

  • Kim, Bum Goo;Kim, Young Soon
    • Journal of the Korean Chemical Society
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    • v.43 no.1
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    • pp.58-68
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    • 1999
  • The phthalocyanine(Pc) film can not be prepared by LB method because it is insoluble in organic solvents. In order to increase its solubility, two kinds of copper phthalocyanine derivatives (CuPc$(COOH)_2$ and CuPc$(COOH)_4$) were synthesized and their monolayers were prepared by LB method. It is found from the surface pressure-area curves that the LB monolayer film of CuPc$(COOH)_2$ have more ordered structure than that of CuPc$(COOH)_4$. In the photocurrent characteristic the value Of CuPc$(COOH)_2$ was superior to that of CuPc $(COOH)_4$. Therefore, it is found that the charge generation efficiency for phthalocyanines have influenced on its ordered structure as the functional groups.

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Highly Efficient Blue Organic Light-emitting Devices Based on Copper Phthalocyanine/Aromatic Diamine Composite Hole Transport Layer

  • Liao, Chi Hung;Tsai, Chih Hung;Chen, Chin H.
    • 한국정보디스플레이학회:학술대회논문집
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    • 2004.08a
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    • pp.724-726
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    • 2004
  • Highly efficient blue organic light-emitting devices (OLEDs) utilizing the idea of copper phthalocyanine (CuPc)/N,N'-bis-(1-naphthyl)-N,N'-diphenyl,1,1'-biphenyl- 4,4'-diamine (NPB) composite hole transport layer (CPHTL) have been fabricated. The effect of inserting CPHTL upon the performance of blue OLEDs with 2-methyl-9,10-di(2-naphthyl)anthracene (MADN) as the blue emitter has been investigated. Compared with the luminous efficiency of the standard blue device without CPHTL (1.33 cd/A), that of the device with 40:60 CuPc/NPB CPHTL has been increased by more than twice up to 2.96 cd/A with a Commission Internationale d'Eclairage (CIE) coordinates of(x = 0.15, y = 0.10) and a power efficiency of 1.46 lm/W (20 mA/$cm^2$) at 6.39 V. The increased device efficiency is attributed to an improved balance between hole and electron currents arriving at the recombination zone.

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A Study of the High Sensitive Nonsilver Halide Imaging Material( II ) - Study of the aqueous coating mechanism and washing effect of the CGL in the $\varepsilon$-CuPc/PVK double-layered organic photoconductor - (고감도 비은염 화상재료 개발연구 ( II ) - Copper Phthalocyanine/PVK 전자사진감광체의 CGL의 수성 coating mechanism과 세정효과에 관한 연구 -)

  • 이상남
    • Journal of the Korean Graphic Arts Communication Society
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    • v.9 no.1
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    • pp.27-44
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    • 1991
  • In this research, double-layered photoconductor consist of the carrier generation layer(CGL) of ${\varepsilon}$ type copper phthalocyanine thin film by an aqueous coating method and the carrier transport layer(CGL) of polyvinyl carbazol(PVK) by spin coating. We inverstigated effect of the surfactant solution and cathod electrolysis to the crystal type of ${\varepsilon}$-CuPc in CGL with TEM, SEM and X-ray diffraction spectroscopy and studied the mechanism of an aqueous coating for the preparation of CGL. The effect of the washing of CGL about the electrophotographic characteristics of the ${\varepsilon}$-CUPC/PVK double-layered photoconductors is studied also.

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Surface Potential Properties of CuPc/Au Device with Different Substrate Temperature (CuPe/Au 소자의 기판 온도 변화에 따른 표면전위 특성)

  • Lee, Ho-Shik;Park, Yong-Pil;Kim, Young-Pyo;Cheon, Min-Woo;Yu, Seong-Mi
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2007.10a
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    • pp.758-760
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    • 2007
  • Organic field-effect transistors (OFETs) are of interest for use in widely area electronic applications. We fabricated a copper phthalocyanine (CuPc) based field-effect transistor with different metal electrode. So we need the effect of the substituent group attached to the phthalocyanine on the surface potential was investigated by Kelvin probe method with varying temperature of the substrate. We were obtained the positive shift of the surface potential for CuPc thin film. We observed the electron displacement at the interface between Au electrode and CuPc layer and we were confirmed by the surface potential measurement.

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Study for the Preparation of Deodorizing Fiber ( II ) - Preparations of Deodorizing Fibers using Metal-Phthalocyanines - (소취 섬유의 제조에 관한 연구 (II) - 금속 프탈로시아닌을 이용한 소취 섬유의 제조 -)

  • 박수민;오선화
    • Textile Coloration and Finishing
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    • v.14 no.1
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    • pp.27-33
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    • 2002
  • The preparations of deodorizing fibers using medal-phthalocyanines have been investigated. The five metal-phthalocyanine derivatives(M-taPc, M=Fe, Co, Ni, Zn, Cu) were prepared in modest to good yields. The metal-phthalocyanine derivative as a deodorant material was introduced to fibers by a dyeing method. The deodorant activity(D.A.) of these deodorizing fibers was measured by chromogenic gas detector tubes. In comparison with untreated fibers, these deodorizing fibers was remarkably effective against $NH_3$ and CH3SH. More than 99% of ammonia can be removed within 20 min. The D.A.(%) of fiber adsorbed M-taPc was more than 80% after 90min.

Synchrotron radiation photoelectron spectroscopy study of oxygen doping effect by oxygen plasma treatment to inverted top emitting organic light emitting diodes

  • Hong, Ki-Hyon;Kim, Ki-Soo;Kim, Sung-Jun;Choi, Ho-Won;Tak, Yoon-Heung;Lee, Jong-Lam
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.118-120
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    • 2009
  • We reported that the evidence of oxygen doping to copper-phthalocyanine (CuPc) by $O_2$-plasma treatment to Au electrode of inverted top emitting organic light emitting diodes (ITOLEDs). The operation voltage of OLEDs at 150 mA/$cm^2$ decreased from 16.1 to 10.3 V as oxygen atoms indiffued to CuPc layer using $O_2$-plasma. Synchrotron radiation photoelectron spectroscopy results showed that a new bond of Cu-O appeared and the energy difference between the highest occupied molecular orbital and $E_F$ is lowered by 0.20 eV after plasma treatment. Thus the hole injection barrier was lowered, reducing the turn-on voltage and increasing the quantum efficiency of OLEDs.

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Electrical Properties of CuPc Field-effect Transistor Using CuPc Derivate Material (CuPc 유도체를 사용한 OFET의 전기적 특성 연구)

  • Lee, Ho-Shik;Park, Young-Pil;Cheon, Min-Woo;Kim, Tae-Gon;Kim, Young-Phyo
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2009.06a
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    • pp.279-280
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    • 2009
  • Organic field-effect transistors (OFETs) are of interest for use in widely area electronic applications. We fabricated a copper phthalocyanine (CuPc) based field-effect transistor with different metal electrode. The CuPc FET device was made a top-contact type and the substrate temperature was room temperature. The source and drain electrodes were used an Au and Al materials. The CuPc thickness was 40nm, and the channel length was $50{\mu}m$, channel width was 3mm. We observed a typical current-voltage (I-V) characteristics in CuPc FET with different electrode materials.

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Characteristics of Metal-Phthalocyanine for Catalytic Combustion of Methanol (메탄올의 촉매연소에 대한 금속-프탈로시아닌의 특성)

  • Seo, Seong-Gyu;Yoon, Hyung-Sun;Lee, Sun-Won
    • Journal of Korean Society of Environmental Engineers
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    • v.22 no.10
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    • pp.1809-1816
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    • 2000
  • The catalytic combustion of methanol as a model volatile organic compound(VOC) was been investigated over metal-phthalocyanine(PC) in a fixed bed flow reactor system. The catalytic activity of Co-PC pretreated with air and methanol mixture at $450^{\circ}C$ and 60 cc/min for 1 hr was very excellent. The order of catalytic activity on methanol combustion was summarized as follows: metal free-PC < Zn-PC < Fe-PC < Cu($\alpha$)-PC < Co-PC. By TG/DTA analysis, the tendency of thermal decomposition was increased as follows: metal free-PC < Zn-PC < Cu($\alpha$)-PC < Co-PC < Fe-PC. Under this pretreatment condition, the basic structures of Co-PC, Cu($\alpha$)-PC and Fe-PC were destroyed, and the new metal oxide such as $Co_3O_4$ from Co-PC was confirmed by EA and XRD analysis. But Zn-PC and metal free-PC were retained its basic structure under this pretreatment condition. On the combustion of methanol over Co-PC, HCHO and $HCOOCH_3$ were observed as an intermediate products in the high concentration of reactant or the short contact time(W/F).

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Electrical Properties of CuPc Field-effect Transistor with Different Metal Electrodes (금속 전극 변화에 따른 CuPc Field-effect Transistor의 전기적 특성)

  • Lee, Ho-Shik;Park, Yong-Pil;Cheon, Min-Woo;Yu, Seong-Mi
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2008.05a
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    • pp.727-729
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    • 2008
  • Organic field-effort transistors (OFETs) are of interest for use in widely area electronic applications. We fabricated a copper phthalocyanine (CuPc) based field-effect transistor with different metal electrode. The CuPc FET device was made a top-contact type and the substrate temperature was room temperature. The source and drain electrodes were used an Au and Al materials. The CuPc thickness was 40nm, and the channel length was $50{\mu}m$, channel width was 3mm. We observed a typical current-voltage (I-V) characteristics in CuPc FET with different electrode materials.

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