We have investigated the X-ray beam effect on perovskite MAPbI3 and MAPb0.9Bi0.1I3 by means of X-ray diffraction (XRD) and X-ray photoemission spectroscopy (XPS) measurements. We have found that MA+ molecules are destroyed by an X-ray beam in perovskite MAPbI3, leading to production of Pb4+ and/or Pb0. Unlike the case of MAPbI3, the XPS analysis revealed that Bi0/5+ species are induced by the X-ray beam in MAPb0.9Bi0.1I3 rather than Pb0/4+. The results suggest that the Pb and Bi mixed valence can be controlled by X-ray irradiation in the perovskite organometal halides.
Pb and Bi mixed valence states induced by X-ray irradiation in MAPbI3 and MAPb0.9Bi0.1I3 / Saito, Keita; Iguchi, Rinka; Muneda, Ryota; Saini, Naurang Lal; Mizokawa, Takashi. - In: ACS APPLIED ENERGY MATERIALS. - ISSN 2574-0962. - 8:13(2025), pp. 9544-9550. [10.1021/acsaem.5c01190]
Pb and Bi mixed valence states induced by X-ray irradiation in MAPbI3 and MAPb0.9Bi0.1I3
Saini, Naurang Lal
;
2025
Abstract
We have investigated the X-ray beam effect on perovskite MAPbI3 and MAPb0.9Bi0.1I3 by means of X-ray diffraction (XRD) and X-ray photoemission spectroscopy (XPS) measurements. We have found that MA+ molecules are destroyed by an X-ray beam in perovskite MAPbI3, leading to production of Pb4+ and/or Pb0. Unlike the case of MAPbI3, the XPS analysis revealed that Bi0/5+ species are induced by the X-ray beam in MAPb0.9Bi0.1I3 rather than Pb0/4+. The results suggest that the Pb and Bi mixed valence can be controlled by X-ray irradiation in the perovskite organometal halides.| File | Dimensione | Formato | |
|---|---|---|---|
|
Saito_Pb-and-Bi_2025.pdf
solo gestori archivio
Note: Articolo su rivista
Tipologia:
Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza:
Tutti i diritti riservati (All rights reserved)
Dimensione
11.67 MB
Formato
Adobe PDF
|
11.67 MB | Adobe PDF | Contatta l'autore |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
