Lead-free piezoelectrics are non-toxic, cheap and environmental friendly materials. Among them Bismuth Sodium Titanate (BNT) which has the chemical formula Bi 0.5 Na 0.5 TiO with a complex A-site perovskite structure. In this study, some modifications on BNT were used to help in applications by forming solid solution with Bi 3 0.5 K 0.5 TiO 3 (BKT) and BaTiO (BT). The BNTbased (xBNT-yBKT-zBT)
In this work single layer antireflection coating of ZnO thin film has been designed and fabrication on glass and PSi substrates using pulse laser ablation (PLA) and spin coating techniques.Mainly, the work, divided into two parts, first: single antireflection of ZnO thin film using modified characteristics matrix to satisfy zero reflection condition theoretically.
The main problem is the replacing of Hg atom by covalent atoms such as (Cu,Sn) atoms in the compound ((H )B C C ) by consider (x=0-1). Firstly, the high temperature superconductor of (HgB C C ) Hg-1223 had been synthesized experimentally by solid state reaction. The high temperature superconductor (CuB C C ) Cu-1223, (SnB C C ) Sn-1223 had been synthesized by solid state reaction.There are many parameters affected the preparation technique such as flow of oxygen, sintering temperature and compacted pressure.
