1 Ocak 2015 Dergi makalesi Açık Erişim

Babu, Veluru Jagadeesh; Vempati, Sesha; Ertas, Yelda; Uyar, Tamer

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        "affiliation": "Bilkent Univ, UNAM Natl Nanotechnol Res Ctr, TR-06800 Ankara, Turkey", 
        "name": "Babu, Veluru Jagadeesh"
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      {
        "affiliation": "Bilkent Univ, UNAM Natl Nanotechnol Res Ctr, TR-06800 Ankara, Turkey", 
        "name": "Vempati, Sesha"
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        "name": "Ertas, Yelda"
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    "description": "Poly(vinyl acetate) (PVAc)/TiO2 nanofibers, PVAc/SnO2 nanoribbons and PVAc/SnO2-TiO2 nanoribbons were produced via electrospinning. TiO2 nanofibers and SnO2 nanoribbons were obtained by removal of the polymeric matrix (PVAc) after calcination at 450 degrees C. Interestingly, PVAc/SnO2-TiO2 nanoribbons were transformed into SnO2-TiO2 nanofibers after calcination under the similar conditions. Fiber morphology and elemental mapping confirmed through SEM and TEM microscope techniques respectively. The X-ray diffraction measurements suggested the presence of anatase TiO2 and rutile SnO2 and both were present in the SnO2-TiO2 mixed system. Systematic photoluminescence studies were performed on the electrospun nanostructures at different excitation wavelengths (lambda(ex1) = 325, lambda(ex2) = 330, lambda(ex3) = 350, lambda(ex4) = 397 and lambda(ex5) = 540 nm). We emphasize that the defects in the SnO2-TiO2 based on the defect levels present in TiO2 and SnO2 and anticipate that these defect levels may have great potential in understanding and characterizing various semiconducting nanostructures.", 
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      "issue": "81", 
      "pages": "66367-66375", 
      "title": "RSC ADVANCES", 
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    "title": "Excitation dependent recombination studies on SnO2/TiO2 electrospun nanofibers"
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