Control of Size and Shape of Nanocrystalline Semiconducting Materials can allow for customization of bandgap through absorption of light across visible spectrum. This characteristic is essential for Industrial fabrication of optoelectronic devices. This book gives a definite route for the design of an organic-inorganic base (Hybrid) photovoltaic cell component. The organic molecules (TetraPhenyl Porphyrin) acts as active layer for generation of electron and as an enhancement for subsequent sudden transfer of the charge to the ZnO substrate in the TPP/ZnO hybrid specimen.