Definition
Scientific research in the area of semiconducting organic materials as the active substance in light emitting diodes (LEDs) has increased immensely during the last four decades. Organic semiconductors was first reported in the 60:s and then the materials where only considered to be merely a scientific curiosity. (They are named organic because they consist primarily of carbon, hydrogen and oxygen.). However when it was recognized in the eighties that many of them are photoconductive under visible light, industrial interests were att ....etc

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Ajaya K Kavala
Department of Physics
Indian Institute of Technology Patna



Introduction to Conducting Polymer
Conjugated Polymer
Organic electronic molecules
Physics of these materials
Applications


What is a polymer?

A long molecule made
up from lots of small
molecules called
monomers

Definition

Mono = Single
Poly = many
mer = Part

Polymer consists of very large number of
monomer assembled by covalent b ....etc

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Organic material that has semiconductor properties. Semiconductivity is exhibited by single molecules, short chain (oligomers) and organic polymers. Semiconducting small molecules (aromatic hydrocarbons) include the polycyclic aromatic compounds pentacene, anthracene,and The environment of surface electrons at 'solid-to-liquid' interfaces is somewhat extreme, subjected to intense local electric fields or harsh chemical pressures that high-density ionic charge or polarization of mobile molecules create. In this proceedings, we argue functions of ....etc

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I need a ppt on organic led within 6 ... Plz send me... Tommorow im having seminar on it ....etc

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Abstract;
In order to examine the validity of model at organic/metal interfaces, the position of the vacuum level of N,N'-bis(3-methylphenyl)-N,N'-diphenyl--4,4'-diamine (TPD) film formed on various metal substrates (Au, Cu, Ag, Mg and Ca) was measured as a function of the film-thickness by Kelvin probe method in ultrahigh vacuum (UHV). TPD is a typical hole-injecting material for organic electroluminescent devices. At all the interfaces, sharp shifts of the vacuum level were observed within 1 nm thickness. Further deposition o ....etc

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Abstract
Organic electronics, (plastic electronics or polymer electronics), deals with conductive polymers, plastics, or small molecules. It is called 'organic' electronics because the polymers and small molecules are carbon-based, like the molecules of living things. This is as opposed to traditional electronics (or metal electronics) which relies on inorganic conductors such as copper or silicon. Polymer electronics are laminar electronics
applications
negative differential resistance(switches)
melanins. Historically, melanin is anoth ....etc

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The demand for organic food continues to increase in the United States and Europe. In the US,
organic certification to the National Organic Standards is required for all organic sales. Europe
has similar organic standards but separate certification requirements that must be met in order to
gain access to the European organic market.
United States Organic Standards
The US National Organic Program (NOP) was fully implemented on Oct. 21, 2002. The NOP is
a federal law that requires all organic food products to meet the same standards and be ....etc

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Organic Semiconductor and its applications


Why Organic?Advantages


They are also biodegradable (being made from carbon).

This opens the door to many exciting and advanced new applications that would be impossible using copper or silicon.


Why not Organic?Disadvantages

Conductive polymers have high resistance and therefore are not good conductors of electricity.

Because of poor electronic behavior (lower mobility), they have much smal ....etc

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Definition

Scientific research in the area of semiconducting organic materials as the active substance in light emitting diodes (LEDs) has increased immensely during the last four decades. Organic semiconductors was first reported in the 60:s and then the materials where only considered to be merely a scientific curiosity. (They are named organic because they consist primarily of carbon, hydrogen and oxygen.). However when it was recognized in the eighties that many of them are photoconductive under visible light, industrial interests were a ....etc

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With the imaging appliance revolution underway, the need for more advanced handheld devices that will combine the attributes of a computer, PDA, and cell phone is increasing and the flat-panel mobile display industry is searching for a display technology that will revolutionize the industry. The need for new lightweight, low-power, wide viewing angled displays has pushed the industry to revisit the current flat-panel digital display technology used for mobile applications. Struggling to meet the needs of demanding applications such as e-books, ....etc

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