Browsing by Author "Vempati, Sesha"
Now showing items 1-5 of 5
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Associative behaviour and effect of functional groups on the fluorescence of graphene oxide
(Royal Society of Chemistry, 2018)We have juxtaposed the structural, vibrational and emission properties of graphene oxide (GO) with various degrees of reduction with and without a model dispersant, unveiling a strong associative behavior between GO sheets ... -
Defect related emission versus intersystem crossing : blue emitting ZnO/graphene oxide quantum dots
(Royal Society of Chemistry, 2015)In ref. [Nat. Nanotechnol., 2012, 7, 465-471] interesting optoelectronic properties of ZnO/graphene oxide (GO) composite were presented. Essentially, in the luminescence spectrum indirect optical transitions were identified ... -
Temporary and permanent changes to the defect equilibrium due to ultraviolet exposure: surface and bulk effects on ZnO nanostructures
(Elsevier, 2018)We report on the influence of prolonged exposure of above band gap illumination (UV) on the surface electronic structure (core and valence band) and bulk defect equilibrium of ZnO nanorods. We investigated two samples (ZnO1 ... -
Tuning the degree of oxidation and electron delocalization of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) with solid-electrolyte
(Elsevier, 2017-10)We report on the effects of ionic interaction on the electronic structure of PEDOT:PSS where the oxidation state of PEDOT is an import aspect for various applications. Additional ionic interactions are introduced and ... -
ZnO nanostructures on electrospun nanofibers by atomic layer deposition/hydrothermal growth and their photocatalytic activity
(Materials Research Society, 2014)A hierarchy of nanostructured-ZnO was fabricated on the electrospun nanofibers by atomic layer deposition (ALD) and hydrothermal growth, subsequently. Firstly, we produced poly(acrylonitrile) (PAN) nanofibers via ...
