Dazzling red emission from TiO₂ nanoparticles impregnated co-doped Gdup>3+up>+Euup>3+up>: PVA polymer nanocomposites for photonic applications

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• 作者：K. Naveen Kumarup>aup>up> ; up>up>knaveenphy@gmail.comup> ; Padma R.up>bup> ; Vijayalakshmi L.up>cup> ; Misook Kangup>aup>up> ; up>up>mskang@ynu.ac.krup>
• 关键词：FTIR ; Fourier-transform infrared ; LCMD ; light-converting molecular devices ; PVA ; polyvinyl alcohol ; TG/DTA ; thermogravimetry&ndash ; differential thermal analysis ; XRD ; X-ray diffraction
• 刊名：Journal of Industrial and Engineering Chemistry
• 出版年：2017
• 出版时间：25 January 2017
• 年：2017
• 卷：45
• 期：Complete
• 页码：349-359
• 全文大小：4059 K
• 卷排序：45

文摘

A novel dazzling red emission is observed from TiO2 NPs + Gd3+ + Eu3+: PVA polymer nanocomposites under UV excitation. Upon co-doping with Gd3+ to the Eu3+: PVA polymer film, it exhibits enriched red emission. Due to addition of TiO2 NPs to Gd3+ + Eu3+: PVA polymer films, the PL properties are remarkably enhanced. The red emission of Eu3+ is significantly enhanced by an ETP from Gd3+ to Eu3+ ions and TiO2 NPs to Eu3+ ions. These polymer nanocomposites could be suggested as promising materials for red luminescent optical materials.