Applications Of Conducting Polymer In Electronics & Electrochemical Devices

1. PONDICHERRY UNIVERSITY Applications Of Conducting Polymer In Electronics & Electrochemical Devices PONDICHERRY UNIVERSITY Presented By_ To_ Sanjeeb Limbu(14305019) Dr.AngaiahSubramania Sir M.Tech.-Nanoscience & Technology Associate Professor (SECOND YEAR) (CNST) Conducting Polymer Centre for Nanoscience and Technology

2. PONDICHERRY UNIVERSITY Conducting polymers are polymer with metallic and semiconductor characteristics Conductive polymer or more precisely intrinsically conducting polymer(ICPs) are polymer that conduct electricity Conductive polymer are generally not thermoplastics,i.e.,they are not thermo flammable but like insulating polymer, they are organic material The advantages of using conducting polymer are that they are light weight, inexpensive and more recently easily process able The electrical conductivity in these polymer is considered to be intermediate between semi conductor and metals Examples are Poly analine,poly pyrrole,Poly Thiophene,Poly acetylene etc. Conducting Polymer Conducting Polymer Centre for Nanoscience and Technology

3. PONDICHERRY UNIVERSITY Applications Of Conducting Polymer In Electronics Devices Conducting Polymer Centre for Nanoscience and Technology

4. PONDICHERRY UNIVERSITY TV and Computer screens One of the most exciting developments is the use of con-ductive polymers to produce flat, flexible plastic screens for televisions and computers. This work evolved from the discovery that conductive polymers such as polyphenylene vinylene emit light when sandwiched between oppositely charged electrodes, thus enabling flat-panel display designs to be made. The company associated closely with this technology at the present time is Cam-bridge Display Technology (CDT) Poly(p-phenylene vinylene)  (PPV, or polyphenylene vinylene) Conductive Polymers: Plastic Electronics Conducting Polymer Centre for Nanoscience and Technology

5. PONDICHERRY UNIVERSITY Printable Electronics Printable electronics is the broad term used to describe electronics made from carbon-based organic materials and components using printing type processes rather than traditional silicon-based, inorganic materials. It is also referred to as organic, plastic, polymer and flexible electronics. • Benefits of the technology? • Low capital and operating cost production equipment • High materials utilisation efficiency • Faster production turnaround time especially using R2R processes. • The major advantages of printable electronic generally include the ability to fabricate lightweight, flexible and low cost products • Important at both the micro and macro level for example from high resolution transistor circuits to large-scale electronic billboards. What is Printable Electronics? • So, What’s the Big Deal? • Lightweight and low energy electronics and sensors • Reduced manufacturing costs and materials usage. • New smart electronic devices & applications • • Exciting new shapes and forms Conducting Polymer Centre for Nanoscience and Technology

6. PONDICHERRY UNIVERSITY Printable Electronics Xerox develops silver ink to usher in new era of low cost printable electronics Materials Used in Printed Electronics Conducting Polymer Centre for Nanoscience and Technology

7. PONDICHERRY UNIVERSITY Flexible Electronics Flexible circuit boards Flex circuit are made up of flexible plastic substrate usually polyimide, Polyester or thin sheets of glass Flexible electronic component Electronic component such as transistor are being made from silicon nanomembrane usually called TFT’s(thin filmTransistor). Flexible resistors and capacitors structures are shown digramm- atically usually called thin film resistors and thin film capacitors What is flexible electronics ? Flexible electronics also known as flex circuits, is a technology for assembling electronic circuits by mounting electron This can be bent without breaking electronics devices on flexible plastic substrates. Conducting Polymer Centre for Nanoscience and Technology

8. PONDICHERRY UNIVERSITY Applications of Flexible Electronics Conducting Polymer Centre for Nanoscience and Technology

9. PONDICHERRY UNIVERSITY Electroluminescent Electronic Devices Electroluminescence – the generation of light, other than blackbody radiation, by electrical excitation. Organic semiconductors was first reported for anthracene single crystals in the 1960s These early studies established that the process responsible for electroluminescence requires injection of electrons from one electrode and holes from the other, the capture of oppositely charged carriers (so-called recombination), and the radioactive decay of the excited electron-hole state (exciton) produced by this recombination process. The first report of metallic conductivities in ‘doped’ polyacetylene, the science of electrically conducting polymers has advanced very rapidly. More recently, much of a interest is shown in LEDs containing conducting polymers. Electroluminescent (EL) Charge & Sync Cable Electroluminescent Cable Conducting Polymer Centre for Nanoscience and Technology

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