Synthesis and optical analyses of fluorine doped tin oxide (SnO2) nanoparticles Tamer Karaman, Atta ur Rehman Sherwani, Musa Mutlu Can, Shalima Shawuti and Satoru Kaneko Eur. Phys. J. Appl. Phys., 95 2 (2021) 20402 Published online: 16 August 2021 DOI: 10.1051/epjap/2021210034