• Dr. Mrunalini Sunil Phalak
• Dr. Y. R. Toda

In this paper, tin dioxide nanoparticles were synthesized by a fast and simple co precipitation method. For SnO2 preparation, we used ammonia, urea as precipitation agent and ethelene glycol as capping agent. The synthesized materials were characterized by Raman spectroscopy. The entire Raman spectrum of SnO2 nanoparticles in offered and analyzed. In accumulation to the classical modes observed in the rutile structure, two other regions exposed Raman activity for nanoparticles. The Raman bands in the low frequency region are accredited to acoustic modes connected with the vibration of the individual nanoparticle as a whole. The high frequency region is activated by surface disorder. In Raman active mode, the oxygen atom vibrates while tin atom is at rest. The large peak occurred at 581 cm-1 is attributed to non degenerate A1g surface mode. In this mode oxygen atom vibrate in the plane perpendicular to c axis. The origin of this mode is associated to the low particle dimension of the material. The weak peak at ~1115 cm−1 may be due to overtones.

Nano particles, Raman Spectroscopy

"Synthesis and Raman spectrum of SnO2 Particles", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 11, page no.d97-d102, November-2021, Available :http://www.jetir.org/papers/JETIR2111314.pdf

"Synthesis and Raman spectrum of SnO2 Particles", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 11, page no. ppd97-d102, November-2021, Available at : http://www.jetir.org/papers/JETIR2111314.pdf