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J. JOHN1, V. THOMAS1,2,* , R. G. S. SOFIN2, P. R. R. KUMAR3, T. T. FERNADEZ4, H. THOMAS1, G. JOSE5, N. V. UNNIKRISHNAN6, R. L. THOMAS7
- Department of Physics, Christian College Chengannur-689122, University of Kerala, India
- Department of Physics, College of Science, Sultan Qaboos University, AlKhoud, Oman
- Department of Physics, S.N.College, Kollam, University of Kerala, India
- Instituto de Óptica, CSIC, Madrid, España
- Institute for Materials Research, School of Process, Environmental and Materials Engineering, University of Leeds, UK
- School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam-686560, India
- Department of Physics, St. Joseph’s College for Women, Alappuzha, University of Kerala, India
Silver nanoparticles have garnered appreciable attention because of their distinctive characteristics that result from the stimulation of surface plasmon resonance (SPR). They are very much successful commercially, due to their excellent conductivity, chemical stability, catalytic activity, and antibacterial activity. In this work we are presenting, silver nanocrystals (AgNCs) doped silica glassy materials prepared using sol-gel technique. The formation of silver nanocrystals was confirmed by X-ray diffraction (XRD) and high-resolution transmission electron micrograph (HRTEM). Further studies prove Surface plasmon resonance (SPR) of AgNCs in the system between the wavelength range 350-470nm. Numerical calculation of SPR of AgNCs with spherical morphology was also done on the basis of discrete dipole approximation (DDA)..
Surface plasmon resonance, DDA, Sol-gel glasses.
Submitted at: Jan. 31, 2023
Accepted at: Oct. 6, 2023
J. JOHN, V. THOMAS, R. G. S. SOFIN, P. R. R. KUMAR, T. T. FERNADEZ, H. THOMAS, G. JOSE, N. V. UNNIKRISHNAN, R. L. THOMAS, Discrete dipole approximation studies of silver nano crystals in sol-gel silica, Journal of Optoelectronics and Advanced Materials Vol. 25, Iss. 9-10, pp. 465-468 (2023)
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