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Performance Analysis and Parameter Extraction of Organic Light Emitting Transistor (OLET)

The recent advancement in organic material-based devices and circuits is the field of strong academic and industry interest. The current development in the electrical performance and the stability of organic semiconductors has opened an epoch of low-cost and large-area-electronic applications. Commercial devices, incorporating small molecules and conducting semiconductor materials are gradually entering the market. The organic light emitting transistors (OLETs) which are enhanced version of OLEDs, now a days pay more attention due to their architecture, flexibility, light in weight and low cost. The behavior of OLETs is bifunctional in nature i.e. the characteristic of those organic materials which emitting light. The behavior, classification, various properties and performance parameters of the OLET is summarized. Additionally, this paper dealt with performance analysis of OLET in terms of drive-current, mobility, on-off-current-ratio and threshold-voltage. Apart from this, comparison of performance parameters is presented in this paper. The performance of OLET is not only dependent on structures of devices but also it depends on material selection, therefore, material impact on OLET also added in this manuscript. This analysis is helped in improvement of reliability and potential aspects of OLETs towards the display and sensing applications.