Abstract:
This thesis is dedicated to the synthesis of LiZnO and MgZnO based
semiconductor materials for photocatalysis. As solar cell is an efficient
device for clean energy production. To enhance the efficiency of such type
of clean energy devices an efficient photocatalytic material is required for
proper working. The efficiency of photocatalysis water-splitting reaction
has been limited. However, to solve this issue we will develop a simple and
novel reaction mechanism as well as an important need for stable and highly
efficient catalytic materials. Therefore, in this research work LiZnO and
MgZnO semiconductor materials was made by sol-gel method. To analyze
the structural properties of the synthesized samples XRD has been carried
out and find out one phases in LiZnO and MgZnO materials. By using
RAMAN and UV spectroscopy, to detect vibrational, rotational, and other
states in a molecular system and optical properties have been studied of
materials respectively. From the graphs of electrochemical
characterizations, we conclude that the best performance among two
prepared samples is given by the sample MgZnO. The reason is that MgZnO
behaves like a good photocatalyst as compared to that of LiZnO. Further
DFT calculations was performed to study electronic structure, current
density and optical properties of the material.
