Ayush Dhande

Advisor: Prof. Antonio Facchetti

  will defend master’s thesis entitled,

Development of Intrinsically Stretchable Vertical Organic Electrochemical Transistors via Interfacial Top Electrode Modification

On

Monday, April 20 at 11 a.m.

MRDC 4211

and virtually via MS Teams

https://teams.microsoft.com/meet/265405960763671?p=3K2IxWxSKMV9gb9ZJc

Abstract

Organic electrochemical transistors (OECTs) have emerged a promising technology for bio-integrated electronics due to their low voltage operation and high transconductance, yet achieving both performance and mechanical stretchability remains challenge. In this work, an intrinsically stretchable vertical OECT (svOECTs) is fabricated to bridge the gap, utilizing a vertically stacked architecture that enables high device density and nanometer scale channel lengths. To address the failure of electrodes under mechanical strain, a top electrode engineering strategy is introduced using a trilayer top electrode mechanism. This significantly enhances interfacial adhesion and charge transport. The resulting svOECTs exhibit electromechanical stability, durability and maintain functionality under different mechanical conditions. This study demonstrates that combining vertical device architecture with interfacial molecular engineering provides a framework for next generation bioelectronics of high fidelity sensing on dynamic biological surfaces.

Committee

• Prof. Antonio Facchetti – School of Materials Science and Engineering (advisor)
• Prof. Jason Azoulay – School of Materials Science and Engineering
• Prof. Seung Soon Jang – School of Materials Science and Engineering