Abstract
Chalcogenide perovskite materials are anticipated to have favourable structural, optical and electronic characteristics for solar energy conversion, yet experimental verification of the numerous computational studies is still lacking. In this perspective we summarise and critically review the computational and synthetic achievements, whilst suggesting new pathways for achieving the goal of developing this exiting class of materials. Greater knowledge of phase chemistry would allow the realisation of bandgap engineering through mixed cation and anion compositions. Combining this with fabrication and characterisation of thin films could yield promising new tailored materials for photovoltaic absorbers in the near future.
Highlights
Northumbria Research LinkS/Se, much of the synthetic efforts have been directed to the fabrication of oxide perovskite materials that have large bandgaps due to the less electronegative or polarisable O2- anion
Link: Northumbria University has developed Northumbria Research Link (NRL) to enable users to access the University’s research output
We present a critical review of the state-of-the-art in chalcogenide perovskites primarily based on S/Se anions, including the analysis of structural, optical and electronic characterisations as well as synthesis and attempts at device fabrication
Summary
S/Se, much of the synthetic efforts have been directed to the fabrication of oxide perovskite materials that have large bandgaps due to the less electronegative or polarisable O2- anion They are not of strong interest as absorber materials for solar energy conversion.[24] In this perspective, we present a critical review of the state-of-the-art in chalcogenide perovskites primarily based on S/Se anions, including the analysis of structural, optical and electronic characterisations as well as synthesis and attempts at device fabrication. S/Se based chalcogenide perovskites urgently require a more concerted and interdisciplinary experimental effort to unlock their potential as next-generation sustainable PV absorbers Based on this discussion, we recommend the most promising directions for future research, namely an emphasis on depositing materials in thin-film form and on the formation of solidstate intermediate alloys, allowing bandgap engineering and thermodynamic stability
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
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 call
