Open AccessEstimation of Richardson Constant for Natural Organic dye Based Cells using Orange-lemon and Apple-green
Author(s) -
Arnab Kanti Karan,
Nabin Baran Manik
Publication year - 2021
Publication title -
international journal of innovative research in physics
Language(s) - English
Resource type - Journals
eISSN - 2689-484X
pISSN - 2687-7902
DOI - 10.15864/ijiip.2407
Subject(s) - orange (colour) , natural dye , analytical chemistry (journal) , materials science , chemistry , chromatography , composite material , food science , dyeing
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/cm 2 K 2 , and 118 x 10 -3 A/cm 2 K 2 for OL and AG dye respectively, which is different from the conventional value of 120 A/cm 2 K 2 . These values will help us to study different electrical parameters for these natural dyes.