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Carbon v.132, 2018년, pp.380 - 393   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Multifunctional nitrogen sulfur co-doped reduced graphene oxide – Ag nano hybrids (sphere, cube and wire) for nonlinear optical and SERS applications

Nair, Anju K. (International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, 686 560, Kerala, India ) ; Bhavitha, K.B. (International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, 686 560, Kerala, India ) ; Perumbilavil, Sreekanth (Photonics Laboratory, Tampere University of Technology, PO Box 692, FI33101, Tampere, Finland ) ; Sankar, Pranitha (UltraFast and Nonlinear Optical Lab, Light and Matter Physics Group, Raman Research Institute, Bangalore, 560080, India ) ; Rouxel, Didier (Institut Jean Lamour-UMR CNRS 7198, Facult'e des Sciences et Techniques, CampusVictor Grignard-BP 70239, 54506, Vandoeuvre-les-Nancy Cedex, France ) ; Kala, M.S. (Department of Physics, St Teresas's College Ernakulam, 682011, Kerala, India ) ; Thomas, Sabu (International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, 686 560, Kerala, India ) ; Kalarikkal, Nandakumar (International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, 686 560, Kerala, In ) ;
  • 초록  

    Abstract Hetero atom doped graphene - metal nanoparticle hybrids have received increasing attention owing to their unique electronic properties, large specific surface area, very high conductivity and more electronic interactions. Herein, we report for the first time a hydrothermal assisted strategy for developing novel class of nitrogen (N) and sulfur (S) co-doped graphene/Ag nano morphotypes (sphere, cube and wire) hybrids for enhanced optical limiting (OL) and surface-enhanced Raman scattering (SERS) applications. Two probe molecules, Rhodamine 6G and para-aminothiophenol, are chosen to determine the enhancement performance of the as-prepared SERS-active substrate. Our results signified that the Ag nanocube-N, S codoped graphene hybrid based SERS-active substrate presents excellent performances for sensing R6G with an enhancement factor of 1.07 × 10 7 . Further, this SERS substrate reveals outstanding capability to detect P -ATP molecules with detection limit of approximately 1.0 × 10 −12 M. Moreover, the non-linear optical absorption studies results show that the OL properties were appreciably enhanced after the insertion of Ag nanostructures on the NSG surface. Thus, OL properties of the two-dimensional N, S-codoped graphene can be effectively modified by absorbing AgNPs of different morphology on its surface. All of the results signify that these hybrid structures will show extended applications for SERS sensing and optoelectronic fields. Graphical abstract [DISPLAY OMISSION]


  • 주제어

    Nitrogen sulfur co-doped graphene .   Ag nanomorphotypes .   Optical limiting .   Surface enhanced Raman scattering .   Rhodamine 6G.  

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