naa a22 4500 510816843 CHVBK 20180411083511.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11468-012-9389-6 doi (NATIONALLICENCE)springer-10.1007/s11468-012-9389-6 Blue-Shifted SPR of Au Nanoparticles with Ordering of Carbon by Dense Ionization and Thermal Treatment [Elektronische Daten] [R. Singhal, D. Kabiraj, P. Kulriya, J. Pivin, R. Chandra, D. Avasthi] Thin films of carbon-containing Au nanoparticles (NPs), prepared by the co-sputtering using a neutral Ar atom beam, were irradiated by 120MeV Ag ions and also annealed, separately, at increasing temperatures in inert atmosphere. The surface plasmon resonance (SPR) band of the nanocomposite film was observed to be blue shifted (∼50nm) in both cases, with increasing fluence and temperature. The structural changes of Au NPs embedded in amorphous carbon matrix were investigated using X-ray diffraction and transmission electron microscopy. A growth of Au NPs was observed with increasing fluence and also with increasing temperature. A percolation of Au NPs was observed at 500°C. A growth of Au NPs with ion irradiation is explained in the framework of a thermal spike model. Raman spectroscopy revealed the ordering of a-C thin films with increasing fluence and temperature, which is ascribed to a change of refractive index and the blue shift of the SPR band. Springer Science+Business Media, LLC, 2012 Nanoparticles nationallicence Surface plasmon resonance nationallicence Ion irradiation nationallicence Amorphous carbon nationallicence Singhal R. Inter University Accelerator Centre, Post Box No. 10502, 110067, New Delhi, India aut Kabiraj D. Inter University Accelerator Centre, Post Box No. 10502, 110067, New Delhi, India aut Kulriya P. Inter University Accelerator Centre, Post Box No. 10502, 110067, New Delhi, India aut Pivin J. CSNSM, IN2P3-CNRS, Batiment 108, 91405, Orsay Campus, France aut Chandra R. Institute Instrumentation Centre, Indian Institute of Technology Roorkee, 247667, Roorkee, India aut Avasthi D. Inter University Accelerator Centre, Post Box No. 10502, 110067, New Delhi, India aut Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 295-305 1557-1955 8:2<295 2013 8 11468 https://doi.org/10.1007/s11468-012-9389-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-012-9389-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Singhal R. Inter University Accelerator Centre, Post Box No. 10502, 110067, New Delhi, India aut NATIONALLICENCE 700 1- Kabiraj D. Inter University Accelerator Centre, Post Box No. 10502, 110067, New Delhi, India aut NATIONALLICENCE 700 1- Kulriya P. Inter University Accelerator Centre, Post Box No. 10502, 110067, New Delhi, India aut NATIONALLICENCE 700 1- Pivin J. CSNSM, IN2P3-CNRS, Batiment 108, 91405, Orsay Campus, France aut NATIONALLICENCE 700 1- Chandra R. Institute Instrumentation Centre, Indian Institute of Technology Roorkee, 247667, Roorkee, India aut NATIONALLICENCE 700 1- Avasthi D. Inter University Accelerator Centre, Post Box No. 10502, 110067, New Delhi, India aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 295-305 1557-1955 8:2<295 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer