Polymer Electronics

The widespread focus on organic and molecular approaches to electronics has been driven by the promise that new mechanisms may overcome current limitations of silicon-based devices.  In particular, silicon devices based on capacitive and field effects are dominated by interfacial processes that are currently limited by defects and scaling issues.  However, molecular devices currently suffer from issues of reproducibility that are in part a result of the incorporation of organic materials into a fairly aggressive lithographic process.  Our research program explores well-defined mechanisms for redox-driven memory and electronics based on field-driven ion motion.  By designing molecular composite architectures that distribute charges within dopable systems we are opening up new approaches for the design of polymer-based electronics and memory.  Working with collaborators in Electrical and Computer Engineering and industry we are working on producing functional memory based on these new principles.  

Composite Development

“Controlling Volatility in Solid-State, Redox-based Memory Devices using Heterojunction Barriers to Ion Transport.” Chem. Comm. 48: 9409-9411 (2012) DOI: 10.1039/c2cc34557a

“Scaling and Anisotropic Conduction in Electrochemically Deposited Polypyrrole Hybrid Junctions” IEEE Electron Device Letters, 32: 815-817 (2011) DOI: 10.1109/LED.2011.2135834

“Field Enhanced Charge Carrier Reconfiguration in Electronic and Ionic-coupled Dynamic Polymer Resistive Memory” Nanotechnology, 21: 134003 (2010) DOI: 10.1088/0957-4484/21/13/134003

“Compensation Doping in Conjugated Polymers: Engineering Dopable Heterojunctions for Modulating Conductivity in the Solid State” J. Am. Chem. Soc. 131: 15600-15601 (2009) DOI: 10.1021/ja9070909

“Field-induced Carrier Generation in Conjugated Polymer Semiconductors for Dynamic, Asymmetric Junctions” Adv. Mat. 20: 49-53 (2008) DOI: 10.1002/adma.200700854

Device Development

“Polymer-based Memory Structures on Copper Substrates” J. Electrochem. Soc. 161: D367-D371 (2014) DOI: 10.1149/2.100406jes

“Dynamic Resistive Crossbar Memory Based on Conjugated Polymer Composite” Appl. Phys. Lett. 94: 092113 (2009) DOI: 10.1063/1.3080617

Previous
Previous

Machine Olfaction