الخواص البصرية لكحول البولي فينيل مع أفلام الصبغ الأحمر الفينول

الملخص

     In this paper, pure PVA and phenol red/PVA films with several doping ratio of phenol red (5, 10, 15, 20 and 25) ml have been obtained by solution casting method. The optical properties were measured in range of wavelength (200-650) nm. The experimental results show that the absorbance of phenol red /PVA films was increased with increasing the doping ratio of phenol red. The values of energy gap were decreased with increasing the doping ratio of phenol red from (5.00 to 4.40) eV.