Achieving lower dimensional electronic device in today's world has been increased enormously. Miniaturization technique has been improved in connection to maintain noble device properties. Processes incorporated to nano range fabrication are always intricate, as various quantum size effects play important role in this regime. Understanding the physics of low-dimensional systems and the operation of next-generation electronics will be helpful in bringing revolutionary changes to mankind. Phenomena surrounding the nanoparticles have been discussed and the discussion has been divided into two...