용액법을 이용한 나트륨 도핑에 따른 Cu2ZnSnSe4 (CZTSSe) 박막의 합성 및 특성 평가

심홍재; 김지훈; 강명길; 김진혁; Hongjae Shim; Jihun Kim; MyungGil Gang; Jinhyeok Kim

Korean Journal of Materials Research, Vol.28, No.10, 564-569, October, 2018

DOI10.3740/MRSK.2018.28.10.564 Export Citation

용액법을 이용한 나트륨 도핑에 따른 Cu2ZnSnSe4 (CZTSSe) 박막의 합성 및 특성 평가

The Effects of Sodium Doping on the Electrical Properties of the Cu2ZnSn(S,Se)4 (CZTSSe) Solar Cells

심홍재, 김지훈, 강명길, 김진혁^†

전남대학교 신소재공학과, 광전자융합기술연구소

Hongjae Shim, Jihun Kim, MyungGil Gang, and Jinhyeok Kim^†

Department of Materials Science and Engineering, Chonnam National University, 300 Yongbong-Dong, Puk-Gu, Gwangju 500-757, Republic of Korea

E-mail:

Cu2ZnSn(S,Se)4 (CZTSSe) films were prepared on Mo coated soda lime glass substrates by sulfo-selenization of sputtered stacked Zn-Sn-Cu(CZT) precursor films. The precursor was dried in a capped state with aqueous NaOH solution. The CZT precursor films were sulfo-selenized in the S + Se vapor atmosphere. Sodium was doped during the sulfo-selenization treatment. The effect of sodium doping on the structural and electrical properties of the CZTSSe thin films were studied using FE-SEM(field-emission scanning electron microscopy), XRD(X-ray diffraction), XRF(X-ray fluorescence spectroscopy), dark current, SIMS(secondary ion mass spectrometry), conversion efficiency. The XRD, XRF, FE-SEM, Dark current, SIMS and cell efficiency results indicated that the properties of sulfo-selenized CZTSSe thin films were strongly related to the sodium doping. Further detailed analysis and discussion for effect of sodium doping on the properties CZTSSe thin films will be discussed.

Keywords:CZTSSe;CZTS;sodium

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[2] Fairbrother A, Fontane X, Izquierdo-oca V, Espindola-Rodriguez M, Lopez- Marino S, Placidi P, Lopez-Garcia J, Perez-Rodriguez A, Saucedo E, ChemPhysChem., 14, 1836 (2013)

[3] Wang W, Winkler MT, Gunawan O, Gokmen T, Todorov TV, Zhu Y, Mitzi DB, Adv. Eng. Mater., 4, 130146 (2014)

[4] Jackson P, Hariskos D, Wuerz R, Kiowski O, Bauer A, Friedlmeier TM, Powalla M, Phys. Status Solidi RRL, 9, 28 (2014)

[5] Hlaing Oo WM, Johnson JL, Bhatia A, Lund EA, Nowell MM, Scarpulla MA, J. Electron. Mater., 40, 2214 (2011)

[6] Munir R, Jung GS, Ko YM, Ahn BT, Korean J. Mater. Res., 23(3), 183 (2013)

[7] Granata JE, Sites JR, Asher S, Matson RJ. 26th ed., p. 387-390 Anaheim (1997).

[8] Dagan G, Abou-Elfotouh F, Dunlavy DJ, Matson RJ, Cahen D, Chem. Mater., 2, 286 (1990)

[9] Braunger D, Hariskos D, Bilger G, Rau U, Schock HW, Thin Solid Films, 361-362, 161 (2000)

[10] Prabhakar T, Jampana N, Sol. Energy Mater. Sol. Cells, 95(3), 1001 (2011)

[11] Caballero R, Kaufmann CA, Eisenbarth T, Unold T, Schorr S, Hesse R, Klenk R, Schock HW, Phys. Status Solidi A-Appl. Res., 206, 1049 (2009)

[12] Mise T, Tajima S, Fukano T, Higuchi K, Washio T, Jimbo K, Katagiri H, Prog. Photovoltaics: Research and Applications, 24, 1009 (2016).

[13] Werner M, Sutter-Fella CM, Romanyuk YE, Tiwari AN, Thin Solid Films, 582, 308 (2015)

[14] Ruckh M, Schmid D, Kaiser M, Schaffler R, Walter T, Schock HW, Sol. Energy Mater. Sol. Cells, 41-42, 335 (1996)

[15] Redinger A, Hones K, Fontane X, Izquierdo-Roca V, Saucedo E, Valle N, Perez-Rodriguez A, Siebentritt S, Appl. Phys. Lett., 98, 101907 (2011)

[16] Yoo YY, Hong CW, Gang MG, Shin SW, Kim YB, Moon JH, Lee YJ, Kim JH, Korean J. Mater. Res., 23(11), 613 (2013)

[17] Gershon T, Shin B, Bojarczuk N, Hopstaken M, Mitzi DB, Guha S, Adv. Eng. Mater., 5, 140084 (2015)

[18] Rau M, Schmitt M, Hilburger D, Engelhardt F, Seifert O, Parisi J, Riedl W, Rimmasch J, Karg F, Photovoltaics Specialists Conf., Washington, DC, IEEE, New York (1996).