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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국전기전자재료학회 Transactions on Electrical and Electronic Materials Transactions on Electrical and Electronic Materials 제13권 제1호
- 발행연도
- 2012.1
- 수록면
- 35 - 38 (4page)
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초록· 키워드
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In this study, we have attempted to characterize the photovoltaic effect in real-time measurement of photoinduced current in a poly-Si-based solar cell using photoconductive atomic force microscopy (PC-AFM). However, the high contact resistance that originates from the metal-semiconductor Schottky contact disturbs the current flow and makes it difficult to measure the photoinduced current. To solve this problem, a thin metallic film has been coated on the surface of the device, which successfully decreases the contact resistance. In the PC-AFM analysis, we used a metal-coated conducting cantilever tip as the top electrode of the solar cell and light from a halogen lamp was irradiated on the PC-AFM scanning region. As the light intensity becomes stronger, the current value increases up to 200 μA at 80 W, as more electrons and hole carriers are generated because of the photovoltaic effect. The ratio of the conducting area at different conditions was calculated, and it showed a behavior similar to that generated by a photoinduced current. On analyzing the PC-AFM measurement results, we have verified the correlation between the light intensity and photoinduced current of the poly-Si-based solar cell in nanometer scale.
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참고문헌 (12)
참고문헌 신청
A. Cavallini / 2007 / / Microscopy of Semiconducting Materials2007 : 301 ~ 304
A. Kueng / 2003 / Integrated AFM?SECM in Tapping Mode: SimultaneousTopographical and Electrochemical Imaging of Enzyme Activity / Angew. Chem. Int. Ed 42 : 3238 ~
Azulay D / 2005 / Current routesin hydrogenated microcrystalline silicon / Phys. Rev. B 71 : 113304 ~
Behrang H. Hamadani / 2010 / Origin of Nanoscale Variationsin Photoresponse of an Organic Solar Cell / Nano Lett. 10 (5) : 1611 ~ 1617
C. Groves / 2010 / Heterogeneity in PolymerSolar Cells-Local Morphology and Performance in OrganicPhotovoltaics Studied with Scanning probe Microscopy / Acc.Chem. Res. 43 :
A. Kueng / 2003 / Integrated AFM?SECM in Tapping Mode: SimultaneousTopographical and Electrochemical Imaging of Enzyme Activity / Angew. Chem. Int. Ed 42 : 3238 ~
Azulay D / 2005 / Current routesin hydrogenated microcrystalline silicon / Phys. Rev. B 71 : 113304 ~
Behrang H. Hamadani / 2010 / Origin of Nanoscale Variationsin Photoresponse of an Organic Solar Cell / Nano Lett. 10 (5) : 1611 ~ 1617
C. Groves / 2010 / Heterogeneity in PolymerSolar Cells-Local Morphology and Performance in OrganicPhotovoltaics Studied with Scanning probe Microscopy / Acc.Chem. Res. 43 :
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