Author/Authors :
BANGBAI, CHATPONG King Mongkut s Institute of Technology Ladkrabang - School of Applied Physics, Thailand , CHONGSRI, KRISANA Rajabhat Rajanagarindra University - Faculty of Science and Technology - Department of Applied Physics, Thailand , PECHARAPA, WISANU King Mongkut s Institute of Technology Ladkrabang - College of Nanotechnology, Thailand , PECHARAPA, WISANU ThEP Center, Thailand , TECHITDHEERA, WICHARN King Mongkuts Institute of Technology Ladkrabang - School of Applied Physics, Thailand
Abstract :
In this work, the preparation of ZnO, N-doped ZnO (NZO), Al-doped ZnO (AZO) and Al, N-doped ZnO (ANZO) thin films by the sol-gel spin-coating method is reported. The structural properties and surface morphologies of films were characterized by X-ray diffraction (XRD) and field emission scanning electron microscope (FE-SEM). The optical properties of the films were interpreted from their transmission spectra using UV-VIS spectrophotometer. The XRD and SEM results disclosed that the crystallization quality and grain size of as-prepared films were highly influenced by N and Al doping. UV-VIS spectrophotometer results indicated that Al and N additives could significantly enhance the optical transparency and induce the blue-shift in optical bandgap of ZnO films.
Keywords :
Al doping , N doping , sol , gel , ZnO thin films
