title: Near-infrared luminescent copolymerized hybrid materials built from tin nanoclusters and PMMA.
abstract: Novel near-infrared (NIR) luminescent copolymerized hybrid materials were prepared by covalently grafting and physically doping Ln complexes (Ln = Er, Sm, Yb, and Nd) into a copolymer matrix built from nanobuilding blocks. The structures of the obtained hybrid materials were investigated by Fourier transform infrared (FTIR) spectra, nuclear magnetic resonance (NMR), gel permeation chromatography (GPC), and thermogravimetric analysis (TGA). In the photoluminescence studies, the hybrid materials showed characteristic NIR luminescence of corresponding Ln(3+) ions through intramolecular energy transfer from ligands to Ln(3+) ions. Transparent films of these materials can be easily prepared through spin-coating on indium tin oxide (ITO) glasses taking advantage of the matrix nature.
authors.affiliation: State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Changchun 130022, People's Republic of China.
authors.forename: Weiqiang
authors.initials: W
authors.lastname: Fan
authors.forename: Jing
authors.initials: J
authors.lastname: Feng
authors.forename: Shuyan
authors.initials: S
authors.lastname: Song
authors.forename: Yongqian
authors.initials: Y
authors.lastname: Lei
authors.forename: Liang
authors.initials: L
authors.lastname: Zhou
authors.forename: Guoli
authors.initials: G
authors.lastname: Zheng
authors.forename: Song
authors.initials: S
authors.lastname: Dang
authors.forename: Song
authors.initials: S
authors.lastname: Wang
authors.forename: Hongjie
authors.initials: H
authors.lastname: Zhang
mesh_terms: D002850:Chromatography, Gel / Q000379:methods; D004871:Erbium / Q000737:chemistry; D007477:Ions; D049449:Luminescence; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D009354:Neodymium / Q000737:chemistry; D011108:Polymers / Q000737:chemistry; D019904:Polymethyl Methacrylate / Q000737:chemistry*; D012493:Samarium / Q000737:chemistry; D013055:Spectrophotometry, Infrared / Q000379:methods; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods; D019265:Spectroscopy, Near-Infrared / Q000379:methods*; D013818:Thermogravimetry / Q000379:methods; D014001:Tin / Q000737:chemistry*; D015018:Ytterbium / Q000737:chemistry
chemical_list: D007477:Ions; D011108:Polymers; D009354:Neodymium; D012493:Samarium; D014001:Tin; D004871:Erbium; D019904:Polymethyl Methacrylate; D015018:Ytterbium