Polymer Innovation for Advanced Organic Electronics (PI-AOE) at Purdue University

Research

Polymer Innovation for Advanced Organic Electronics and Bioelectronic Medicine​

Mei group innovates organic (polymer) semiconductors for advanced electronics and iontronics, and tailors their optical, electronic, and mechanical properties for the unmet needs.
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Organic Synthesis is the foundation for our polymer innovation. We explore new synthetic approaches to prepare novel conjugated building blocks for making organic semiconductors.  

Materials Processing and Characterizations are critical components in our research efforts. The essential goal is to establish the relationship of chemical structures-materials processing - thin-film morphologies - functional properties (e.g. mechanical, optical, and electronic properties).      

Device Fabrication and Integration are indispensable when it comes to demonstrating the potentials of our materials. There are three primary electronic devices we build in the laboratory, including organic field-effect transistors (OEFTs), organic electrochromics (OECDs), and organic electrochemical transistors (OECTs)​

OEFTs are the basic building blocks for flexible integrated circuits and displays. To make OFETs, materials ranging from conductors (for electrodes), semiconductors (for active channel materials), to insulators (for gate dielectric layers) are needed. We evaluate the potential of our materials as high-performance p- and n-type organic semiconductors. 

Electrochromic glass is a type of electronic device that can change its light and heat transmission properties, which render energy saving and bring user visual comfort. The major obstacles for current electrochromic technologies to be adopted by the market are 1) premium pricing, ​2) the lag in response time between the colored and the bleached states; and 3) the lack of color neutrality (neutral grey color). In addition, the current electrochromic technologies are incapable of turning millions of existing static windows into dynamic switchable windows. By applying an adhesive layer onto roll-to-roll manufactured thin-film electrochromic foils, which can then be laminated onto a flat/curved glass architecture – we investigate an electrochromic technology that is scalable, cost-effective, and fulfills unmet needs in the switchable glass industry. We currently focus on the scale-up synthesis of electrochromic polymers and roll-to-roll fabrication of electrochromic devices by partnering with industrial experts.  ​

Organic Bio-electronics are a generic platform with unprecedented biological recording and regulation potentials -  a technology that bridges biology with electronics. It is based on a unique combination of both electronic and ionic conductivity presented by conducting and semiconducting polymers that enables a means to effectively interface biology with conventional electronics. In our group, we design and synthesize such electronic and ionic polymers, integrate them into organic electrochemical transistors (OECTs), and use these devices to interrogate interesting biological processes such as neural activities, as well as disease diagnosis and monitoring.

We are part of the MI-BIO team, which is dedicated to designing and synthesizing new bioelectronic materials and accelerating bioelectronic materials discovery and implementation.

"In our lives, we're constantly taking risks and changing our lifestyles and discovering new things by trial and error. If you're not making a few mistakes, you're probably not doing very much. Only by taking risks do you make progress"  
​Arnold Beckman

"The desire that guides me in all I do is the desire to harness the forces of nature to the service of mankind."
Nikola Tesla ​

DNR   NSF

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Ambilight: make glass smart

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