<学術雑誌論文>
Unusual anti-stokes photoluminescence from a polymer film containing thermally activated delayed fluorescent molecules

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概要 Photon-upconversion (PUC) process based on hot-band absorption (HBA) mechanism is expected to be applied to future optical cooling because the thermal energy can be harvested as anti-Stokes photolumin...escence (ASPL). Since the investigations regarding the HBA-ASPL in a solid state are limited, we focused on the ASPL properties in a polymethyl methacrylate-based film doped with a multi-resonance type thermally-activated delayed fluorescent emitter. The ASPL with a PL quantum yield of over 90 % was observed in the film. We found that the activation energy for the ASPL is almost three times higher than that for the HBA's absorbance in the solid state.続きを見る

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公開年月日:2027.03.10 pdf なし 1.32 MB    
公開年月日:2027.03.10 pdf なし 519 KB    

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登録日 2026.04.21
更新日 2026.04.22