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Wiley Small Science 5(6)
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    초록·키워드

    Bioimaging with remarkable noninvasive nature, ultrahigh resolution and sensitivity allows detection of pathologies of bones, organs, and tissues. Nevertheless, the achievement of more complete information in vivo is challenged by the necessity of multiple photodetectors with diverse response ranges. Herein, a multifunctional bioimaging with Cs<sub>2</sub>AgInCl<sub>6</sub>:Yb<sup>3+</sup> perovskites via a single InGaAs detector for superior tissue presentation is realized in this work. Co-incorporation of foreign dopant contributes to alterations of local structural symmetry of the Cs<sub>2</sub>AgInCl<sub>6</sub> host, disruption of parity-forbidden transitions, and reduction in electron-phonon coupling strength, thereby boosting the near-infrared (NIR) intensity by 40-fold of the corresponding perovskites drastically. Moreover, an X-ray excited NIR light output is 2.83 times that of commercial Bi<sub>4</sub>Ge<sub>3</sub>O<sub>12</sub> scintillators. Thanks to the efficient NIR emission, the versatile perovskites film endows a multifunctional bioimaging with detailed information of biological tissue in vivo, which fundamentally offers viable avenues for promoting bioimaging technology with integrated access of tissue presentation.

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