Controlled ETL thickness modulation for performance optimization of organic light-emitting diode

Highly effective organic light-emitting diode (OLED) devices based on organic semiconductor materials are shown in this work, allowing for flexible large-area applications. Various studies indicate that the performance and reliability of organic electronics are constantly improving. By modulating the thickness and composition of the electron transport layer (ETL), attempts are being made to increase OLED performance. This study examines the effects of the ETL on the performance of four experimental devices and contrasts their findings. An internal device study suggests that an increase in charge carrier concentration and carrier confinement is responsible for the improvement in device performance. This work also investigates the scheme of physical characteristics of the ETL variation with its thickness (60, 45, 30, and 15 nm). The article examines many uses of OLEDs, with a specific focus on their progress and improvement for applications in displays, sensors, and visual light communications. There is an improvement of 21.33%, 5.23%, and 54.43% in current density, luminescent power, and Langevin recombination rate, respectively. All simulation work has been handled by the Silvaco TCAD tool.