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http://dx.doi.org/10.3740/MRSK.2018.28.10.564

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

Shim, Hongjae (Department of Materials Science and Engineering, Chonnam National University)
Kim, Jihun (Department of Materials Science and Engineering, Chonnam National University)
Gang, MyungGil (Department of Materials Science and Engineering, Chonnam National University)
Kim, Jinhyeok (Department of Materials Science and Engineering, Chonnam National University)
Publication Information
Korean Journal of Materials Research / v.28, no.10, 2018 , pp. 564-569 More about this Journal
Abstract
$Cu_2ZnSn(S,Se)_4$ (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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