Extreme-Ultraviolet Excited Scintillation of Methylammonium Lead Bromide Perovskites.

ABSTRACT: Inorganic-Organic lead halide materials have been recognized as potential high-energy X-ray detectors because of their high quantum efficiencies and radiation hardness. Surprisingly little is known about whether the same is true for extreme-ultraviolet (XUV) radiation, despite applications in nuclear fusion research and astrophysics. We used a table-top high-harmonic generation setup in the XUV range between 20 and 45 eV to photoexcite methylammonium lead bromide (MAPbBr₃) and measure its scintillation properties. The strong absorbance combined with multiple carriers being excited per photon yield a very high carrier density at the surface, triggering photobleaching reactions that rapidly reduce the emission intensity. Concurrent to and in spite of this photobleaching, a recover

SUBMITTER: van der Geest MLS 

PROVIDER: S-EPMC9358647 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature