eng Science and Education Publishing Nanoscience and Nanotechnology Research 2372-4676 2017-08-16 4 3 115 119 10.12691/nnr-4-3-5 NNR2017435 article Satya Prakash Bharti 1 Ekta Singh, Utkarsh Kumar utkarsh218@gmail.com 1 Department of Applied Physics, Babasaheb Bhimrao Ambedkar University, Lucknow, India Present paper deals with the synthesis of nickel doped tin oxide by sol-gel method. As we increase the doping of nickel the decrease in bandgap take place. http://pubs.sciepub.com/nnr/4/3/5/nnr-4-3-5.pdf sol-gel nanotechnology hydrothermal