One of the most crucial variables to consider while analysing the current conduction process in the metal organic Schottky contact is the Richardson constant. However, there aren't many publications on the determination of the useful Richardson constant for Fruit dyes. For two different Fruit dyes, Carmoisine, and Tartrazine, we have determined the values of the effective Richardson constant in this work. By using the spin coating method, a thin organic layer of these natural colours was sandwiched between a copper plate and a piece of glass that had been coated in indium tin oxide. The current-voltage-temperature response of the cells was examined at a temperature range of 303K to 333K. The estimated effective Richardson constants for these dyes are 95.09 x 10-3 A/cm2K2 and 44.35 x 10-3 A/cm2K2 for CS and TZ dye respectively, which are different from the typical value of 120 A/cm2K2. We can analyse several electrical properties for these natural dyes with the aid of these values.

The Richardson constant is one of the most important parameters to analyze the current conduction process in the metal organic Schottky contact. But there are very few reports available on the estimation of effective Richardson constant for the natural dyes. In this work, we have estimated the values of effective Richardson constant for two different natural dyes namely Orange-Lemon and Apple-Green. A thin organic film of these herbal dyes was sandwiched in between Indium Tin Oxide-coated glass and a Copper plate by spin coating technique. The current-voltage-temperature response of the cells was investigated at a temperature interval of 303K to 333K using Keithley 2400 source meter. The effective Richardson constants for these dyes have been estimated which are 110 x 10-3 A/cm2K2, and 118 x 10-3 A/cm2K2 for OL and AG dye respectively, which is different from the conventional value of 120 A/cm2K2. These values will help us to study different electrical parameters for these natural dyes.

Out of many stimulating research fields, the search for energy materials is taking of highest priority in recent times due to issues related to sustainable development. Explicit investigation in energy...

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