Cation Engineering of Cu-Doped CsPbI3: Lead Substitution and Dimensional Reduction for Improved Scintillation Performance DOI

David Hadid Sidiq,

Somnath Mahato, Tobias Haposan

et al.

The Journal of Physical Chemistry C, Journal Year: 2024, Volume and Issue: 128(47), P. 20324 - 20332

Published: Nov. 13, 2024

To date, inorganic halide perovskite nanocrystals show promising contributions in emerging luminescent materials due to their high tolerance defects. In particular, the development of cesium lead iodide (CsPbI3) has shown its efficiency for light-harvesting properties. However, further implementation is hindered toxicity content. Therefore, this study, we introduced Cu atoms partially substitute Pb (5% Cu) CsPbI3 lattice as a solution reduce toxicity. Partial substitution with host increases Stokes shift (∼67 nm) compared pristine CsPbI3, thereby preventing undesired self-absorption. An outcome focused on champion fast component (τ1) decay time ∼0.6 ns. Temperature-dependent radioluminescence outlines an incremental change emission intensity marginally centered at 713 ± 16 nm, which indicates that Cu-doped not greatly affected by temperature. addition, report light yield after doping increased 3.0 0.8 photons/keV. Our work provides physical insights into tunable scintillation property using transition metal toward lead-free-based scintillating perovskites.

Language: Английский

Cation Engineering of Cu-Doped CsPbI3: Lead Substitution and Dimensional Reduction for Improved Scintillation Performance DOI

David Hadid Sidiq,

Somnath Mahato, Tobias Haposan

et al.

The Journal of Physical Chemistry C, Journal Year: 2024, Volume and Issue: 128(47), P. 20324 - 20332

Published: Nov. 13, 2024

To date, inorganic halide perovskite nanocrystals show promising contributions in emerging luminescent materials due to their high tolerance defects. In particular, the development of cesium lead iodide (CsPbI3) has shown its efficiency for light-harvesting properties. However, further implementation is hindered toxicity content. Therefore, this study, we introduced Cu atoms partially substitute Pb (5% Cu) CsPbI3 lattice as a solution reduce toxicity. Partial substitution with host increases Stokes shift (∼67 nm) compared pristine CsPbI3, thereby preventing undesired self-absorption. An outcome focused on champion fast component (τ1) decay time ∼0.6 ns. Temperature-dependent radioluminescence outlines an incremental change emission intensity marginally centered at 713 ± 16 nm, which indicates that Cu-doped not greatly affected by temperature. addition, report light yield after doping increased 3.0 0.8 photons/keV. Our work provides physical insights into tunable scintillation property using transition metal toward lead-free-based scintillating perovskites.

Language: Английский

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