The  details including the methods, techniques, instruments and chemical reagents used the experiments are detailed in the article published in American Chemical Society Journal: ACS Applied Energy Materials

Article Title: Mapping the Energetics of Defect States in Cu2ZnSnS4 films and the Impact of Sb Doping
Authors:  Devendra Tiwari, Michael V. Yakushev, Tristan Koehler, Mattia Cattelan, Neil Fox, Robert W. Martin, Reiner Klenk and David J Fermin
DOI:  https://10.1021/acsaem.1c03729

6 different files are provided with this ReadMe file in .CSV format and can be viewed using any text editor or any spreadsheet software 

Different data acquired from different experimental techniques are categorized under tabs names listed as follows:

1. J-V_characteristics.csv: J-V characterisctics of CZTS solar cells measured under dark and AM 1.5 G illumination conditions for ND CZTS, Sb-doped CZTS and Na:Sb-doped CZTS samples. 
2. EQE.csv: external quantum efficiency spectra of CZTS solar cells for ND CZTS, Sb-doped CZTS and Na:Sb-doped CZTS samples. 
3. WF_MAPS.csv: data for the work function map CZTS films for ND CZTS, Sb-doped CZTS and Na:Sb-doped CZTS samples.
4. Low_Temperature_PL.csv: temperature and laser power dependence Photoluminiscence peak position and intensity for ND CZTS, Sb-doped CZTS and Na:Sb-doped CZTS films on Molybdenum coated Glass substrates.
5. Low_Temperature_Admittance.csv: data for parameters derived from the low temperature admittance spectra for ND CZTS, Sb-doped CZTS and Na:Sb-doped CZTS solar cells.
6. Data_table.csv: Derived data with statistical analysis from the J-V characteristics solar cells of >200 solar cells of ND CZTS, Sb-doped CZTS and Na:Sb-doped CZTS; and other derived data from admittance, PL, EQE spectroscopies of for non-doped CZTS, Sb-doped CZTS and Na:Sb-doped films on Molybdenum coated Glass substrates.