• 제목/요약/키워드: Thin flim

검색결과 24건 처리시간 0.04초

FTS 법으로 제작한 태양전지용 AZO 박막의 투입전류에 따른 특성 (Properties of AZO thin flim for solar cells with various input current prepared by FTS method)

  • 정유섭;김상모;최명규;김경환
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2008년도 하계학술대회 논문집 Vol.9
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    • pp.471-472
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    • 2008
  • The properties of Al doped ZnO (AZO) thin flim for solar cells with various input currents were studied in this paper. Using facing target sputtering with 2wt.% AZO targets, TCO films were deposited on glass(corning 2948) substrate at room temperature. AZO thin films were deposited by 0.2A, 0.4A, 0.6A and 0.8A at the thickness of 300nm. Electrical, optical and structural of thin films investigated by a Hall effect measurement (Ecopia), an UV-VIS spectrometer(HP) and a X-ray diffractometer (Rigaku). As a results, all thin films showed transmittance about 80%, respectively and resistivity was $7.67\times10^{-4}\Omega$-cm at 0.6A.

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CO2 레이저 열처리에 따른 이온 주입된 다결정 실리콘 박막의 판막저항 변화에 관한 연구 (A Study on the Sheet Resistance Variation in Ion Implanted Poly-Si Thin Flim by CO2 Laser Annealing)

  • 박병황;안철
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1987년도 전기.전자공학 학술대회 논문집(I)
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    • pp.539-541
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    • 1987
  • P+ ion implanted poly-Si flim with doses of 10E13-10E16 ions/$cm^2$ were annealed by CO2 laser and their sheet resistances were measured and compared with thoses of furnace annealed samples. In case of lightly doped samples, the measured sheet resistance of laser annealed samples were lower several orders of magnitude than those of furnace annealed samples. The origin of this reduction of sheet resistances is supposed to be the increase of the grain size to the extent of certain critical value.

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Fabricated SWCNT-PEDOT Hybrid Flim Using by SAW-ED and Their Optoelectronic Properties

  • 조상현;양종원;김진열
    • 한국재료학회:학술대회논문집
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    • 한국재료학회 2011년도 춘계학술발표대회
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    • pp.237.2-237.2
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    • 2011
  • SAW-ED를 이용하는 박막공정 기술을 통하여 나노레벨의 SWCNT 와 PEDOT의 thin film 및 hybrid화된 film구조를 얻을 수 있었다. SWCNT와 전도성고분자와의 hybridization을 통해 균일상의 표면 morphology를 갖는 고전도성 투명 필름을 제작하고, 이들의 전기광학적 성질을 확인하였다. SAW-ED를 이용하는 박막공정 기술은 나노입자 및 나노구조물의 박막화 패턴화를 포함하는 새로운 deposition 기술로서의 응용성을 가지고 있으며, 본 연구에서는 SWCNT와 전도성고분자를 이용하여 이를 확인하였다.

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이온주입에 의한 $TiSi_2$ 박막에서의 Blister 현상 (Blister Phenomenon in $TiSi_2$ Thin Flim by Ion Implantation)

  • 박형태;김영욱
    • 한국진공학회지
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    • 제4권3호
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    • pp.287-292
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    • 1995
  • 단결정 실리콘에 P,B,As 등의 dopant를 이온주입시켰을 때 상부에 스퍼터된 Ti과 고상반응에 의해 형성된 Ti 실리사이드막에 발생되는 blister 현상에 대해 조사했다. Dopant에 관계없이 dose양이 많을수록 Ti 실리사이드막에서 blister의 크기와 밀도가 증가한다. 실리콘 표면에 dopant를 주입한 후 열처리를 하여 damage를 줄여줌으로써 blister의 양을 줄일수 있었다. 이 때 열처리온도가 높을수록 blister의 수가 감소한다.

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박막 MOS 구조의 고정표면전하에 관한 연구 (A Study of fixed oxide charge in thin flim MOS structure)

  • 유석빈;김상용;서용진;장의구
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1989년도 하계종합학술대회 논문집
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    • pp.377-379
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    • 1989
  • Very thin gate oxide(100-300A) MOS capacitor has been fabricated. The effect of series resistance must be calculated and the exact metal-semiconductor work function difference should be obtained to get the fixed oxide charge density exisiting in oxide. Dilute oxidation make sagy to control oxide thickness and reduce fixed oxide charge density. In case of dilute oxidation, fixed oxide charge density depends on oxidation time. If oxide is very thin, the annealing effect is ignored.

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PLD법에 의한 고집적 DRAM용 PLZT 박막의 레이저 에너지 밀도에 따른 특성 (Laser Energy Density Dependence Characteristics of PLZT Thin Films prepared by a PLD for Memory Device)

  • 마석범;장낙원;백동수;최형욱;박창엽
    • 한국전기전자재료학회논문지
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    • 제13권1호
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    • pp.60-65
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    • 2000
  • The structural and electrical characteristics of PLZT thin films fabricated onto Pt/Ti/SiO\ulcorner/Si substrates by a pulsed laser deposition were investigated to develop the high dielectric thin films were fabricated with different energy density by pulsed laser deposition. This PLZT thin films of 5000 thickness were crystallized at 600 $^{\circ}C$, 200 mTorr O\ulcorner pressure for 2 J/$\textrm{cm}^2$ laser energy density, the arain structure was transformed from planar to columnar grain. It was clearly noted from the SEM observations that oxygen pressured laser powers affect microstructures of the PLZT thin films. 14/50/50 PLZT this film showed a maximum dielectric constant value of $\varepsilon$\ulcorner=1289.9. P-E hysteresis loop of 14/50/50 PLZT thin film was flim ferro-electric. Leakage current density of 14/50/50 PLZT thin film was 10\ulcorner A/$\textrm{cm}^2$.

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비휘발성 메모리 소자응용을 위한 Eu 첨가량에 따른 BET 박막의 강유전 특성 (Ferroelectric Properties of Bi3.25La0.75Ti3O12 Thin Films with Eu Contents for Non-volatile Memory Device Application)

  • 김경태;김종규;우종창;김관하;김창일
    • 한국전기전자재료학회논문지
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    • 제20권3호
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    • pp.223-227
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    • 2007
  • The effect of Eu contents on the ferroelectric properties of $Bi_{4-x}Eu_xTi_3 O_{12}$ (BET) thin films has been investigated. Bismuth Europium titanate thin films with a Eu contents were prepared on the $Pt/Ti/SiO_2/Si$ substrate by metal-organic decomposition technique. The structure and the morphology of the films were analyzed using X-ray diffraction (XRD) and field emission scanning microscopy (FE-SEM), respectively. From the XRD analysis, it was found that BET thin films have polycrystalline structure, and the layered-perovskite phase is obtained when the Eu contents exceeds 0.2 (x > 0.2). Also, the ferroelectric characteristics of the BET thin films were found to be dependent on the Eu content. Particularly, the BET films doped with x = 0.75 show better ferroelectric properties (remanent polarization 2Pr = 60.99 C/$cm^2$ and only a little polarization fatigue up to $3.5{\times}10^9$ bipolar switching cycling) than those doped with other Eu contents.

SiOCH 박막의 열처리에 대한 안정성 검토 (An Inspection of Stability for Annealing SiOCH Thin Flim)

  • 박용헌;김민석;황창수;김홍배
    • 한국전기전자재료학회논문지
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    • 제22권1호
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    • pp.41-46
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    • 2009
  • The low dielectric SiOCH films were deposited on p-type Si(100) substrates through the dissociation of BTMSM $(((CH_3)_3Si)_2CH_2)$ precursors with oxygen gas by using PECVD method. BTMSM precursor was introduced with the flow rates from 42 to 60 sccm by 2 sccm step into reaction chamber but with the constant flow rate of 60 sccm $O_2$. SiOCH thin films were annealed at $450^{\circ}C$ for 30 minutes. The electrical property of SiOCH thin films was studied by MIS, Al/SiOCH/p-Si(100), structure. Annealed samples showed large reduction of the maximum capacitance yielding low dielectric constant owing to reductions of surface charge density. After exposure at room temperature and atmospheric pressure, dielectric constant of SiOCH films was totally increased. However, annealed SiOCH thin films were more stable than as-deposited SiOCH thin films for natural oxidation.