Development of Cu2NiSnSe4 Nanocrystals: Effects of Annealing on Structural and Electrical PropertiesDevika Rajan Sajitha, S. Purushothaman, Shyju Thankaraj Salammal and Shamima HussainEPJ Web Conf., 357 (2026) 01001DOI: https://doi.org/10.1051/epjconf/202635701001