I-V characteristics of schottky type solar cells as the Au/Pd/Borik Asit/Metil Kırmızısı/n-Si/Al/Ag structure obtained by drop casting and spin coating methods

In this study, the interfaces of two samples were formed using water-soluble boric acid and methyl red dissolved in chloroform solvent, with one of the sample surfaces being damaged for nano-pyramidal structuring. Coatings were applied to the smooth-surfaced sample using the drop-casting method, while the acid-etched sample was coated using the spin-coating method. Measurements of the fabricated devices were performed in a dark environment at 300 K and under light intensities of 30 mW/cm², 60 mW/cm², and 100 mW/cm². Diode and solar cell parameters were calculated based on the data obtained from these measurements and were presented in tables. Overall, all three samples exhibited diode and solar cell characteristics. According to the results, the barrier height and fill factor showed parallel variations. The efficiency value generally decreased with increasing light intensity, which was attributed to the reduced light transmittance of the interface. In all samples, as the light intensity increased, the current value also increased, and voltage generation was observed. Keywords: Solar cells, schottky solar cells, diode, organic interface, spin coating, ohmic contact