Electrically Conductive Polymers for Energy Conversion

May 20, 2003 - 12:00pm
Bldg. 90

Electrically conductive polymers are critical components of energy conversion devices such as lithium polymer batteries, PEM fuel cells and polymer light emitting diodes (PLED). In all cases, the key issue is to improve charged specie mobility within the conductive materials and at the interfaces. We approach this problem by molecular scale optimization such as new polymer design and synthesis aided by theoretical study and system engineering for the particular device. The methodology and progress on design, synthesis and testing of a new polymer electrolyte system for lithium polymer batteries will be summarized. However, the main focus will be on application of this methodology to PLED research for solid-state lighting applications, which is a relatively new research field emerging in the past few years. The instrumentation development in support of the solid-state lighting initiatives at EETD will be described and the significant progress made in polymer material synthesis, device building and testing. Basic and applied research in collaboration with other research groups at UCB and LBNL will be described that address several critical issues for PLED development. One major issue in designing PLED systems is the charge movement through the interface. Model compounds are designed for femtosecond two photon studies to understand the charge injection and movement at the metal-conductive organic interface. Studies of the PLED on nano and system scales are carried out to address other practical problems. For example, nano-imprinting technology is used to increase surface area in order to address charge injection imbalance at interface. The imprinting at the micro scale can also be used as a waveguide to increase the external efficiency.  Polymer blend phase structure is also used to achieve efficient white light emission, which is critical for lighting applications.

Add event to Google Calendar

Announcement List

To be added to our seminar annoucement list please, email ETA Seminars. Seminars may change without notice, stay informed by joining our seminar email list. 

Site Access

For site access please email your request to ETA Seminars. To arrive at Building 90 via the LBNL shuttle, take "Blue Uphill". Click here for the shuttle schedule. To ensure your site access is set-up send your request 36 hours in advance of the seminar.

Remote Access

Not able to attend in person? Remote participants can use ReadyTalk Audio & Net conference to phone in to listen, while viewing the presentation via the ReadyTalk site.

Web Access Code: 4864835

USA & Canada call-in number:
1 (866) 740-1260
Access Code: 4864835#

International callers:
Please visit this website to see if a toll-free call-in number is available for your international location.

If not, you will need to pay for the call yourself and use this phone number:

(303) 248-0285.