The hydrogenated amorphour silicon (a-Si:H) films have been grown on the glass substrates by plasma enhanced chemical vapor deposition (PE-CVD) employing silane (SiH4) with hydrogen (H2) dilution. The as – deposited films were then annealed at various temperatures of 200, 300 and 400oC for 30 minutes. Annealing process at 300oC was also performed for 60 and 90 minutes. Examinations using X-ray diffractometry, infrared and UV-Vis spectroscopy demonstrated that the annealed films show an increasing crystalinity of 3.26 – 6.80% and reduced dangling bond content down to more than one order of magnitude (from 2.3x1019 to 1.2x1018 cm-3). Meanwhile, the energy bandgap and Urbach energy of the films are around 1.71 – 1.75 eV and 0.21 – 0.27 eV respectively.