용액성장법에서 자외선 조사를 이용한 CdS의 산소함량 제어

백현지; 오지아; 서영은; 신혜진; 조성욱; 전찬욱

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자료유형: 학술저널

저자정보: 백현지 (영남대학교) 오지아 (영남대학교) 서영은 (영남대학교) 신혜진 (영남대학교) 조성욱 (영남대학교) 전찬욱 (영남대학교)

저널정보: 한국태양광발전학회 Current Photovoltaic Research Current Photovoltaic Research Vol.7 No.2

발행연도: 2019.6

수록면: 33 - 37 (5page)

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In this paper, we compared the performance of Cu(In,Ga)(S,Se)₂ (CIGSSe) thin film solar cell with CdS buffer layer deposited by irradiating 365 nm UV light with 8 W power in Chemcial Bath Deposition (CBD) process. The effects of UV light irradiation on the thin film deposition mechanism during CBD-CdS thin film deposition were investigated through chemical and electro-optical studies. If the UV light is irradiated during the solution process, the hydrolysis of Thiourea is promoted even during the same time, thereby inhibiting the formation of the intermediate products developed in the reaction pathway and decreasing the pH of the solution. As a result, it is suggested that the efficiency of the CdS/CIGSSe solar cell is increased because the ratio of the S element in the CdS thin film increases and the proportion of the O element decreases. This is a very simple and effective approach to control the S/O ratio of the CdS thin film by the CBD process without artificially controlling the process temperature, solution pH or concentration.

#CIGSSe #CBD #CdS #UV light

참고문헌 (16)

참고문헌 신청

Krause, M. / 2018 / Microscopic materials properties of a high-efficiency Cu(In,Ga)Se2 solar cell - a case study / 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC) :3873~3874

Wu, J. L. / 2019 / Record Efficiency for Thin-Film Polycrystalline Solar Cells Up to 22. 9% Achieved by Cs-Treated Cu(In, Ga)(Se, S)2 / IEEE J. Photovoltaics 9(1):325~330

Solar Frontier

Friedlmeier, T. M. / 2017 / High-efficiency Cu(In, Ga)Se2 solar cells / Thin Solid Films 633(1):13~17

Friedlmeier, T. M. / 2015 / Improved Photocurrent in Cu(In, Ga)Se2 Solar Cells : From 20. 8% to 21. 7% Efficiency with CdS Buffer and 21. 0% Cd-Free / IEEE J. Photovoltaics 5(5):1487~1491

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