The Modeling of OTFT and the Measuring of Small Signal Detection Circuit

Abstract:

In order to detect OTFT small signal dynamic characteristics of weak current, we designed the detection circuit. The current detection range of the circuit is 10^-9～10^-6A, circuit bandwidth reaches 10kHz.According to the data tested by copper pthalocyanine thin organic static induction transistor we prepared, an equivalent circuit for simulating its dynamic performances was built and the factors influencing the performance of the device was investigated. The simulation results and actual test results are basically identical,which show the reliability of organic thin film transistor equivalent circuit model. In addition, through analyzing the model structure and the simulation results, the grid schottky junction capacitance and the device current intensity are the important factors in determining the dynamic properties of organic thin film transistor.

• Periodical: Advanced Materials Research (Volume 981)
• Pages: 62-65
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.981.62
• Online since: July 2014
• Authors: Xin Cheng Liu*, Min Zhu, Zhi Hui Jing
• Keywords: Dynamic Characteristic, Micro-Current Detection, OTFT, Transistor Modeling

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