PeroSeminar | 11 September 2025

This thesis focuses on thedynamic modification of Schottky barriers in thin-film and nano-cube based optoelectronic devices through the manipulation of charge carriers’ interaction with aSchottky contact. We focus on two primary sources of charge carriers: the internal charge within semiconductors and external contributions, such as thosefrom ionic liquids (IL). Specifically, we analyze a solar cell featuring a carbon nanotube (CNT) electrode, exploring how ionic interactions influence theCNT's performance. Additionally, we examine the behavior of cesium lead bromide perovskite, a material which demonstrate relatively slow mobile ions, tounderstand its internal charge dynamics. Utilizing advanced numerical methods and drift-diffusion techniques, we calculate the current-voltage (IV or JV) characteristics of both device configurations, shedding light on their operational performance. The dynamic adjustment of Schottky barriers holdssignificant promise for applications in sensing and detection, where real-time modulation of barrier properties is essential. Our research further explore howvariations in applied voltage amplitude and duration can be utilized to dynamically modify Schottky barriers, thereby improving the functionality ofthe device as a memristor with a volatile memory.