Development of the sensitizer for generating higher-energy photons under diluted condition via the triplet-triplet annihilation-supported upconversion
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- 田中, 一生
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University
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- 中條, 善樹
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University
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- Inafuku, Kenichi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University
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- Shiotsu, Shohei
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University
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- Chujo, Yoshiki
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University
抄録
It was previously reported that photon upconversion can occur in the solution containing anthracene and the Pt complex of octaethylporphyrin (PtOEP) via the triplet-triplet annihilation process. In this study, by employing the modified Pt complex of the dual anthracene-tethered porphyrin, DA-PtP as a sensitizer, it is demonstrated that shorter-wavelength light can be generated under diluted condition. We synthesized DA-PtP and compared upconversion properties by changing the type of sensitizers. Accordingly, it was shown that the photon upconversion proceeded with the xenon lamp (540 nm) in the presence of DA-PtP. Furthermore, it was found that the emission band in the shorter wavelength light in the near UV region was observed from the solution containing DA-PtP even under diluted condition. From the mechanistic investigation, it was proposed that the anthracene moieties in DA-PtP might inhibit to form agglomeration with the free anthracene. As a result, reabsorption of the higher-energy light generated from upconversion could be suppressed.
収録刊行物
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- Dyes and Pigments
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Dyes and Pigments 172 2020-01
Elsevier Ltd
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詳細情報 詳細情報について
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- CRID
- 1050282813457338112
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- NII論文ID
- 120006719318
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- ISSN
- 01437208
- 18733743
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- HANDLE
- 2433/243902
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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- IRDB
- CiNii Articles