3a ) show a decreasing trend when the temperature increases from 80 to 120 K, which could be attributed to the enhanced deactivation of triplet excitons through the non-radiative relaxation process at higher temperatures.
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Donor-acceptor engineering of a triplet-exciton-optimized MOF photocatalyst for efficient singlet oxygen-mediated oxidation.
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The sentences
An increasing trend was observed from 120 to 280 K, which might be attributed to the enhanced delayed FL emission that originated from the high-temperature-promoted RISC process of triplet excitons.