Abstract
Power conversion efficiency of perovskite solar cells (PSC) has improved around 500% in less than five years, with the current highest recorded efficiency of a standalone PSC of 25.2%. One of the significant components of PSCs that contribute to this improvement is the transport layer, necessary in the separation and injection of charge carriers. Over the years, organic hole transport layers (HTLs) such as 2,2′,7,7′-Tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9′-spirobifluorene (spiro-OMeTAD) have been investigated, developed, and utilized successfully, but facile and low-cost synthesis, good stability, yet efficient HTL remain to be major challenges. Therefore, alternative HTLs based on inorganic materials are being studied. This short review presents progress in the studies of an alternative HTL material for PSCs, Cu2ZnSnS4 (CZTS), known for the ease of synthesis and band tuning, composition based on abundant and non-toxic elements, good electrical properties, and superior stability. Focus is on the effects of integration of CZTS as HTL in PSC, and opportunities for further improvement.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
