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(Report forwarded by Dr. Chandan Upadhyay at the School of Material Science and Technology. Email: cupadhyay.mst@itbhu.ac.in)
The seminar ”Clear Coatable Conductors for Application in Displays” was delivered by Debasis Majumdar of Eastman Kodak Company, Rochester, NY 14650, USA. The seminar was held at SMST Lecture Hall on Tuesday, November 3.
Dr. Majumdar was introduced by Dr. P. Maiti.
Dr. Majumdar talk was focused on Transparent, electrically conductive layers of metal oxides such as indium tin oxide (ITO), commonly used in the manufacturing of electro-optical display devices such as liquid crystal display devices (LCDs), electroluminescent display devices, photocells, solid-state image sensors, electrochromic windows, touchscreens, and the like.
The ITO coating(s) can function as transparent electrodes in these devices. The high cost of the fabrication methods and the low flexibility of such electrodes, attributed to the brittleness of the inorganic ITO layer as well as the glass substrate, limit the range of potential applications. As a result, there is a growing interest in making all-organic devices, comprising plastic resins as a flexible substrate and organic electroconductive polymer layers as an electrode. Such plastic electronics allow low-cost devices with new properties. Flexible plastic substrates can be provided with an electroconductive polymer layer by continuous coating methods and the resulting organic electrodes enable the “roll-to-roll” fabrication of electronic devices that are more flexible, lower cost, and lower weight.
In his talk he described the effort undertaken at Kodak for developing clear coatable conductors for application in flexible display devices, mainly touchscreens. The talk was focused on coatings based on commercially available polyethylenedioxythiophene (PEDOT) and their physical properties, characterization, patterning, and applications. After the talk there was an interaction session with students and faculty members.
A vote of thanks was proposed by Dr. R. Prakash, coordinator SMST.
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Additional Links
* Profile of Debasis Majumdar in LinkedIn
http://www.linkedin.com/profile?authType=name&authToken=fTOS&locale=en_US&viewProfile=&key=6547277
* Eastman Kodak Company
* School of Material Science and Technology, IT-BHU, Varanasi
http://itbhu.ac.in/mst/default.shtml
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