Fabrication of hybrid organic and inorganic photodetector

Several research groups have shown a great deal of interest in semiconductor nanomaterial’s-based photodetectors due to their high density, short carrier-diffusion route length, ease of handling, and inexpensive cost of production. In a dye-sensitized photodetector, the anode material performs two roles: it supports the loading of the sensitizer and transports photoexcited electrons. As such, the introduction of new class materials is crucial. In this work, a photodetector was manufactured using Rhodamine dye. Nanomaterial’s such as titanium dioxide and graphene were prepared using laser (Nd-YaG) ablation method. These nanoparticles were deposited on a glass (FTO) substrate. Nano-titanium dioxide was deposited using laser deposition technology on FTO substrate, and in the same way nano-graphene was deposited on another FTO substrate. Nano titanium dioxide was used a photoanode, while platinum was used a photocathode. TiO₂ is inorganic material, the base on which platinum was deposited Pierced, and drops of an electrolyte solution of iodine, potassium, and ethylene were added to the cell. The final shape of the detector cell is like a sandwich. Field emission scanning microscope (FESEM) was used to study the structural morphology of the cell and the results reveal that the FESEM characteristics micrograph gives tiny crystalline size. UV-Vis spectrophotometer was used to identify the optical properties and the results exhibited high absorbance at longer wavelength and increased when graphene concentration increased.