• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2007년도 추계종합학술대회
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• pp.758-760
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• 2007

최근에 유기물 전계효과 트랜지스터의 연구는 전자 소자 분야에서 널리 알려져 있다. 특히 본 연구에서는 CuPc 물질을 기본으로 하여 소자를 제작하고, 또한 기판의 온도를 달리 하여 CuPc/Au 구조 소자의 표면 전위 특성을 측정하였다. 기판은 slide glass를 사용하였고, CuPc 박막파 Au 전극은 진공 증착법을 이용하였다. 측정 온도의 범위는 0 - $100^{\circ}C$이었으며, 모든 측정은 진공 상태에서 측정이 이루어 졌다. 상온에서의 표면 전위 값은 약 600mV의 값을 보이고 있으며, 기판의 온도가 $100^{\circ}C$일 때 표면 전위 값은 약 500mV의 값으로 감소하는 것을 알 수 있다. 이러한 표면 전위 값의 변화는 기판의 온도가 상승하면서 CuPc 벌크 박막의 특성이 변화하는 것으로 판단되며, AFM 측정을 통해 확인 할 수 있었다.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2003년도 International Meeting on Information Display
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• pp.966-969
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• 2003

Thin film capacitors with Al-Polymer-Al sandwich structure were fabricated. The bottom and top aluminium (Al) electrodes were deposited by vacuum evaporation and copper phthalocyanine (CuPc), polyaniline-emeraldine base (Pani-EB) and cobalt phthalocyanine/polyaniline - emeraldine base (CoPc /Pani-EB) blend films (which can be used as buffer hole injection layer in OLEDs) were deposited by spin coating technique. X-ray diffractograms indicated amorphous nature of the polymer films whose thicknesses were measured by capacitance and Rutherford Backscattering Spectrometry (RBS) methods. AC conduction studies revealed that the conduction mechanism responsible in these films is variable range hopping of polarons. From D.C conduction studies, it is observed that, the nature of conduction is ohmic in the lower fields and at higher fields the dominating D.C conduction is of Poole-Frenkel type.

• 한국인쇄학회지
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• 제8권1호
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• pp.1-20
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• 1990

$\alpha$,$\beta$,$\varepsilon$ type copper phthalocy $\alpha$,$\beta$,$\varepsilon$ type copper phthalocyanine(CuPc) pigment was purified by a simple train sublimation technique. The layered photoconductor was made with $\varepsilon$ type CuPc as a carrier generation layer(CGL) and polyvinly carvazol(PVCz) as a carrier transport layer(CLT). A CGL of CuPc was electrochemical deposited on an Al substrate used as cathode in pigment dispersion solutions. a CTL of PVCz pwas spin coated on $\varepsilon$ type CuPc thin film by a spin coater. The effect of sonication time, electrophotographic property of the layered photoconductor were studied with surface coverage, surface potential and sensitivity.

• 대한전기학회논문지
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• 제44권4호
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• pp.496-501
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• 1995

The N $O_{2}$ gas-detection characteristics were investigated using the functional organic Langmuir-Blodgett (LB) films of Copper-tetra-tert-butylphthalocyanine (CuTBP), Dilithium phthalocyanine (Li$_{2}$Pc), N-docosylpyridinium TCNQ(C$_{22}$Py(TCNQ)), Polyamic acid alkylamine salts (PAAS). The optimum conditions for a film deposition were obtained through a study of .pi.-.ALPHA. isotherms and the deposited film status was confirmed by electrical and optical methods such as UV/visible absortion spectra, thickness measurements by ellipsometry, and electrical capacitances. A response of the LB films to the N $O_{2}$ gas was measured by a change of the electrical conductivities when the film is exposed to the gases. The CuTBP LB film shows the biggest change of the electrical conductivities when it is exposed to the N $O_{2}$ gases. And the order of gas-detection performance is the following;Li$_{2}$Pc, $C_{22}$Py(TCNQ), and PAAS LB films. Especially, the CuTBP and Li$_{2}$Pc LB films not only show the bigger change in the electircal conductivities when exposed to the gas, but return to the original state when the gas is desorbed.d.

• 마이크로전자및패키징학회지
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• 제10권1호
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• pp.1-5
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• 2003

본 연구에서는 ITO (indium tin oxide)/glass 투명기판 위에 다층구조의 OELD (organic electroluminescent devices) 소자를 진공 열증착법으로 제작하였다. 발광층 재료로서 Alq$_3$(tris-(8-hydroxyquinoline)aluminum)물질을 사용하였고, 정공수송층으로는 TPD (triphenyl-diamine) 및 $\alpha-NPD$를 사용하였다. 정공주입층 재료로서 CuPc (Copper phthalocyanine)를 사용하였다. 또한 QD2(quinacridone2) 물질을 $Alq_3$ 발광층내에 약 $10\AA$ 두께로 증착하여 발광효율 향상을 시도하였다. 제작된 모든 소자의 발광개시전압은 약 7 V 이었으며, 정공수송층으로 TPD 물질대신에 열적안정성이 우수한 $\alpha-NPD$를 사용한 경우 휘도값과 발광효율이 개선되었다. $Alq_3$ 발광층 사이에 QD2 물질을 적층한 소자에서 발광효율은 1.55 lm/W 값을 나타내어 $Alq_3$ 발광층만을 사용한 경우에 비해 약 8배 발광효율이 향상되었다.

• 전자공학회논문지A
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• 제32A권7호
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• pp.85-93
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• 1995

In this study, phthalocyanine thin films were prepared by vacuum sublimation method and investigated sensing characteristics of the films. The phthalocyannies used for the prepaation of the NO$_{x}$ sensors were metal-free Pc(H$_{2}$Pc) and metal Pc(CuPc, CoPc, PbPc). And the substrate temperatures maintained during the fomation of Pc films were varied between R.T. and 200$^{\circ]C$, and the base pressure was 5${\times}10^{6}$ torr. The relationships between NO$_{2}$ sensing properties and SEM analyses as a function of substrate temperatures during the formation of the films were investigated. Among the Pc films, PbPc film showed the best sensing characteristics. Particularlly, the PbPc films prepared at 70$^{\circ]C$ of the substrage temperature showen good sensitivity of 85% to 1ppm NO$_{2}$ gas at operating temperature 190$^{\circ]C$ and response time was about 24 seconds.