Show simple item record

dc.contributor.authorSatta, Jessica
dc.contributor.authorCasu, Alberto
dc.contributor.authorChiriu, Daniele
dc.contributor.authorCarbonaro, Carlo
dc.contributor.authorStagi, Luigi
dc.contributor.authorRicci, Pier Carlo
dc.date.accessioned2021-05-24T07:32:32Z
dc.date.available2021-05-24T07:32:32Z
dc.date.issued2021-05-14
dc.date.submitted2021-05-11
dc.identifier.citationSatta, J., Casu, A., Chiriu, D., Carbonaro, C., Stagi, L., & Ricci, P. C. (2021). Solid-State Growth of Cspbi3 Perovskites: Phases Formation and Stability. doi:10.21203/rs.3.rs-515136/v1
dc.identifier.doi10.21203/rs.3.rs-515136/v1
dc.identifier.urihttp://hdl.handle.net/10754/669221
dc.description.abstractAbstract Totally inorganic perovskites are playing an increasingly important role for their potential applications in optoelectronics devices. However, a big problem to be solved is the role of the different phases, the presence of which is closely linked to the growth method and to the role of impurities. In this article, we propose a solvent-free, solid-state growth method, which allows to obtain samples free of any organic residues. The analysis of structural (XRD and Raman measurements), optical (absorption, steady-time and time-resolved luminescence) and morphological (HRTEM imaging), permitted to understand the phase evolution during the synthesis as a function of the temporal duration. The dynamic equilibrium process at high temperature between the CsPbI3 and the starting precursors, CsI and PbI2, plays a fundamental role in the final phase. If, from one side, the α and δ phases are related to the exact stoichiometry, on the other hand an excess of CsI permits the formation of room temperature stable perovskite γ-phase and, with a further excess, the secondary Cs4PbI6 phase is obtained.
dc.publisherResearch Square Platform LLC
dc.relation.urlhttps://www.researchsquare.com/article/rs-515136/v1
dc.relation.urlhttps://www.researchsquare.com/article/rs-515136/v1.pdf
dc.rightsArchived with thanks to Research Square Platform LLC
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectCsPbI3
dc.subjectInorganic lead halide perovskites
dc.subjectSolid-State synthesis
dc.subjectPhase stability
dc.titleSolid-State Growth of Cspbi3 Perovskites: Phases Formation and Stability
dc.typePreprint
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.eprint.versionPre-print
dc.contributor.institutionUniversity of Cagliari
dc.contributor.institutionUniversity of Sassari
kaust.personCasu, Alberto
refterms.dateFOA2021-05-24T07:33:40Z


Files in this item

Thumbnail
Name:
Preprintfile1.pdf
Size:
2.619Mb
Format:
PDF
Description:
Pre-print

This item appears in the following Collection(s)

Show simple item record

Archived with thanks to Research Square Platform LLC
Except where otherwise noted, this item's license is described as Archived with thanks to Research Square Platform LLC