Abstract
Thin films solar cells (TFSCs) coated from different types of inks have yielded best efficiencies from 8 to ~13 %. This review depicts a specific group of non-vacuum methods for depositing kesterite Cu2ZnSnS4 (CZTS) solar cell absorber, which we characterized as direct ink coating (DIC) technique. The main objective of this chapter is to review the CZTS inks prepared by microwave process technique. A number of techniques including, hot injection method, solvo-thermal process, sonochemical and microwave-assisted route have been employed to synthesized CZTS ink. However, microwave is a rapid and single step process which has the potential to yield high-quality CZTS nanoparticle ink within minutes. CZTS films have been coated with different structures using such inks. Different properties of CZTS films such as, structural, compositional, optical, electrical and photovoltaic have also been reviewed. The properties of the TFSCs are discussed in the context of the processing techniques resulting in complete devices.
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