Revealing the excited-state dynamics of cytidine and the role of excited-state proton transfer process

Zhao, Li; Geng, Xuehui; Han, Guoxia; Guo, Yahui; Liu, Runze; Chen, Junsheng

doi:10.1039/d3cp03683a

Cited by 2 publications

References 68 publications

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The Scintillating Dynamics of Self‐Trapped Exciton Endowed/Unendowed by Thermally Activated Delayed Fluorescence

Yin,

Zhou,

Song

et al. 2024

Laser & Photonics Reviews

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Triplet generation and control are widely studied in high‐energy scintillating materials, owing to their critical roles in thermally activated delayed fluorescence (TADF) and energy‐transfer processes. However, X‐ray excited inorganic scintillators, such as Cs2ZrCl6, present various defect traps in the self‐trapped exciton states. Hence, the mobility of the hot carriers that participate in scintillating dynamics is disorderly, and they may contribute to TADF or suppress the TADF pathway. This study prepares a series of Cs2ZrCl6: x%m‐MTDATA (x% = 0%–10%) organic–inorganic hybrid scintillators to achieve tunable photoluminescence (PL) and radioluminescence (RL) through a directional energy‐transfer pathway. This work highlights the different scintillating carrier dynamics of Cs2ZrCl6: x%m‐MTDATA under ultraviolet or X‐ray excitation. The introduction of m‐MTDATA into Cs2ZrCl6 could increase the trap depths and ensure thermal quenching under X‐ray excitation, rather than inducing thermal activation, resulting in a weak X‐ray excited afterglow output and fast RL decay time. These findings provide a paradigm for future research on organic–inorganic hybrid X‐ray scintillators, opening new opportunities for detecting high‐energy radiations.

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The Scintillating Dynamics of Self‐Trapped Exciton Endowed/Unendowed by Thermally Activated Delayed Fluorescence

Yin,

Zhou,

Song

et al. 2024

Laser & Photonics Reviews

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Computational Studies of the Photophysics and Photochemistry of Nucleic Acid Constituents

Karsili,

Marchetti

2024

Nucleic Acids and Molecular Biology

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Revealing the excited-state dynamics of cytidine and the role of excited-state proton transfer process

Abstract: The high photostability of DNAs and RNAs is inextricably related to the photochemical and photophysical properties of their building blocks, nucleobases and nucleosides, which can dissipate the absorbed UV light energy in a harmless manner.

Cited by 2 publications

References 68 publications

The Scintillating Dynamics of Self‐Trapped Exciton Endowed/Unendowed by Thermally Activated Delayed Fluorescence

The Scintillating Dynamics of Self‐Trapped Exciton Endowed/Unendowed by Thermally Activated Delayed Fluorescence

Computational Studies of the Photophysics and Photochemistry of Nucleic Acid Constituents

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