NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2013, 4 (2), P. 218–224
EFFECT OF HIGH ENERGY ELECTRON BEAM IRRADIATION ON THE OPTICAL PROPERTIES OF NANOCRYSTALLINE TiO2
K. P. Priyanka – Nanoscience Research Centre (NSRC), Dept. of Physics, Nirmala College, Muvattupuzha – 686 661, Kerala, India
Sunny Joseph – Nanoscience Research Centre (NSRC), Dept. of Physics, Nirmala College, Muvattupuzha – 686 661, Kerala, India
AnuTresa Sunny – School of Chemical Sciences, Mahatma Gandhi University, Kottayam – 686 560, Kerala, India
Thomas Varghese – Nanoscience Research Centre (NSRC), Dept. of Physics, Nirmala College, Muvattupuzha – 686 661, Kerala, India; nanoncm@gmail.com
The effect of high energy electron beam irradiation on the optical properties of TiO2 nanoparticles was studied in order to improve the optical absorption performance and photoactivity. Electron beam irradiation may have resulted in size reduction, which in turn caused an increase of the optical band gap and photoluminescence intensity. Irradiation at a suitable dose rate was found to enhance the optical absorption performance and photoactivity of the tested TiO2 nanoparticles.
Keywords: TiO2, electron beam irradiation, optical properties, photoluminescence.