Luminescence of tetraphenylporphyrin by an energy transfer from photoexcited ZnO nanoparticle

• Hiromitsu, Ichiro

• Kawami, Ayana

• Tanaka, Senku

• Morito, Shigekazu

• Sasai, Ryo

• Ikeue, Takahisa

• Fujita, Yasuhisa

• Handa, Makoto

抄録

Photoluminescence (PL) properties of meso-tetraphenylporphine-4,4’,4”,4’’’-tetracarboxylic acid (H_2TPP(COOH)_4) bound to ZnO nanoparticle were studied. With 1.2 H_2TPP(COOH)_4 molecules per ZnO particle, the PL intensity of H_2TPP(COOH)_4 with a 325 nm excitation was increased to a 3.2-times larger value by the conjugate formation with ZnO. The excitation spectrum of PL gave an evidence of an emission of H_2TPP(COOH)_4 by an energy transfer from ZnO. An analysis based on the Forster theory gave a reasonable value of 1.8 nm for the average distance between H_2TPP(COOH)_4 and emissive surface defects on the ZnO particle.

収録刊行物

• Chemical Physics Letters

  Chemical Physics Letters 501 385-389, 2011-01

  Elsevier

詳細情報

• CRID: 1050282814185912832
• NII論文ID: 120005694043
• NII書誌ID: AA00602122
• ISSN: 00092614
• Web Site: http://ir.lib.shimane-u.ac.jp/34796
• 本文言語コード: en
• 資料種別: journal article
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