Small currents measurement in organic field-controlled transistors

Abstract

This paper presents the practical solutions for measuring small currents at the characterization of organic field-controlled transistors. It presents the design, PCB layout, and methodology of various small current measurement principles. The design mainly focuses on a trans-impedance amplifier that transforms current into voltage. In this paper, we can also determine the critical parameters for selecting the main components in the measuring part. Also, simulations and measurement of real measured parameters with an evaluation of all critical quantities, such as accuracy, precision, linearity, offset, noise, and response speed.