Electronic Properties of Silver–Bismuth Iodide Rudorffite Nanoplatelets

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dc.citation.issue32
dc.citation.rankM21
dc.citation.spage13739-13747
dc.citation.volume126
dc.contributor.authorDanilović, Danijela
dc.contributor.authorMilosavljević, Aleksandar R.
dc.contributor.authorSapkota, Pitambar
dc.contributor.authorDojčilović, Radovan
dc.contributor.authorTošić, Dragana
dc.contributor.authorVukmirović, Nenad
dc.contributor.authorJocić, Milan
dc.contributor.authorDjoković, Vladimir
dc.contributor.authorPtasinska, Sylwia
dc.contributor.authorBožanić, Dušan K.
dc.date.accessioned2023-05-16T12:23:40Z
dc.date.available2023-05-16T12:23:40Z
dc.date.issued2022-08-18
dc.description.abstractSilver-bismuth iodide (Ag-Bi-I) rudorffites are chemically stable and non-toxic materials that can act as a possible lead-free replacement for methylammonium lead halides in optoelectronic applications. We report on a simple route for fabricating Ag-Bi-I colloidal nanoplatelets approximately 160 nm in lateral dimensions and 1-8 nm in thickness via exfoliation of Ag-Bi-I rudorffite powders in acetonitrile. The valence band electronic structure of isolated Ag-Bi-I nanoplatelets was investigated using synchrotron radiation to perform X-ray aerosol photoelectron spectroscopy (XAPS). The ionization energy of the material was found to be 6.1 +/- 0.2 eV with respect to the vacuum level. UV-vis absorption and photoluminescence spectroscopies of the Ag-Bi-I colloids showed that the optical properties of the nanoplatelets originate from I 5p to Bi 6p and I 5p to I 5p transitions, which is further confirmed by density functional theory (DFT) calculations. Finally, calculations based on the DFT and k . p theoretical methods showed that the quantum confinement effect is very weak in the system studied.
dc.identifier.doi10.1021/acs.jpcc.2c03208
dc.identifier.issn1932-7447
dc.identifier.issn1932-7455
dc.identifier.scopus2-s2.0-85136288733
dc.identifier.urihttps://pub.ipb.ac.rs/handle/123456789/31
dc.identifier.wos000844635500001
dc.language.isoen
dc.publisherAmerican Chemical Society (ACS)
dc.relation.ispartofThe Journal of Physical Chemistry C
dc.relation.ispartofabbrJ. Phys. Chem. C
dc.rightsrestrictedAccess
dc.titleElectronic Properties of Silver–Bismuth Iodide Rudorffite Nanoplatelets
dc.typejournal-article
dc.type.versionpublishedVersion
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