Effects of Silver and Gold Nanoparticles on Photon Upconversion Based on Sensitized Triplet-Triplet Annihilation

• Yonemura Hiroaki

  Department of Applied Chemistry, Faculty of Engineering, Kyushu University

• Naka Yuji

  Department of Materials Physics and Chemistry, Graduate School of Engineering, Kyushu University

• Matsumoto Ryuji

  Department of Materials Physics and Chemistry, Graduate School of Engineering, Kyushu University

• Yamada Sunao

  Department of Applied Chemistry, Faculty of Engineering, Kyushu University

抄録

Effects of silver nanoparticle (AgNP) and gold nanoparticle (AuNP) on photon upconversion based on sensitized triplet-triplet annihilation were examined in the system of platinum(II) octaethylporphyrin (PtOEP) and 9,10-diphenylanthracene (DPA). The ITO electrodes immobilized with AgNPs and AuNPs were prepared by electrophoretic method. Samples were prepared by sandwiching the solution of PtOEP and DPA between glass and the ITO electrode modified with AgNPs or AuNPs. In the sandwich samples, the enhancements of upconversion fluorescence from DPA were observed in the presence of AgNP, while the quenching of the upconversion fluorescence in the presence of AuNPs. The enhancements are most likely attributable to large electric fields due to localized surface plasmon resonance of AgNP. The quenching is most likely attributable to nonradiative metallic quenching of AuNP.

収録刊行物

• Transactions of the Materials Research Society of Japan

  Transactions of the Materials Research Society of Japan 40 (3), 195-201, 2015

  一般社団法人 日本MRS

キーワード

• localized surface plasmon resonance
• photon upconversion
• triplet-triplet annihilation
• silver nanoparticle
• gold nanoparticle

詳細情報

• CRID: 1390282680488591232
• NII論文ID: 130005096539
• DOI: 10.14723/tmrsj.40.195
• ISSN: 21881650
• ISSN: 13823469
• Web Site: https://www.jstage.jst.go.jp/article/tmrsj/40/3/40_195/_pdf
• 本文言語コード: en
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