Broadband visible emissions from sol-gel-derived silica/poly(vinyl pyrrolidone) hybrids

Shinobu Fujihara, Seiki Kitta

研究成果: Article査読

13 被引用数 (Scopus)

抄録

Photoluminescence (PL) of poly(vinyl pyrrolidone) (PVP) and silica/PVP hybrid films was investigated. The transparent PVP film was found to exhibit bluish PL centered at approximately 440 nm in response to ultraviolet (UV) light excitation. This PL behavior was made good use of in preparing luminescent silica/PVP hybrid films with high thermal stability at temperatures up to 250 °C. Europium-doped hybrid films exhibited white PL upon UV excitation, resulting from mixing of broadband PVP emissions and 5D07F2 emissions of Eu3+. Emission colors could be finely tuned by changing excitation wavelengths.

本文言語English
ページ(範囲)479-483
ページ数5
ジャーナルChemical Physics Letters
397
4-6
DOI
出版ステータスPublished - 2004 10 21

ASJC Scopus subject areas

  • 物理学および天文学(全般)
  • 物理化学および理論化学

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