Issue 44, 2022

Sc1−xErxAlO3 perovskites: high-pressure synthesis, photoluminescence properties, and in vitro bioimaging

Abstract

Optical imaging carries cellular-level information and is a new paradigm as an imaging modality. Importantly, rare-earth ion-doped metal oxide imaging agents have certain advantages like sharp emission lines, long luminescence lifetimes, low cytotoxicity, and enhanced photostability over organic dyes and quantum dots and are highly desirable. In this context, we have prepared Sc1−xErxAlO3 perovskite phosphors using the high-pressure synthetic method, which crystallize in an orthorhombic structure (Pbnm space group). Under UV light excitation, they exhibit green luminescence with sharp emission lines and PL lifetimes in the order of microseconds. The temperature-dependent measurement suggests the high thermal photostability of the perovskite compound, which altogether indicates its potential for optical imaging. The 2% Er3+ substituted compound incubated in HEK293 and SH-SY5Y cells exhibits very low cytotoxicity. Using a two-photon microscope, the biocompatibility of this compound in HEK293 cells was imaged, stipulating its potential biomedical application.

Graphical abstract: Sc1−xErxAlO3 perovskites: high-pressure synthesis, photoluminescence properties, and in vitro bioimaging

Supplementary files

Article information

Article type
Paper
Submitted
27 sep. 2022
Accepted
28 oct. 2022
First published
31 oct. 2022

J. Mater. Chem. C, 2022,10, 16723-16730

Sc1−xErxAlO3 perovskites: high-pressure synthesis, photoluminescence properties, and in vitro bioimaging

D. P. Panda, A. K. Singh, T. K. Kundu and A. Sundaresan, J. Mater. Chem. C, 2022, 10, 16723 DOI: 10.1039/D2TC04092A

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