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Fabrication Involved in Organic LED

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Q1: Explain clearly the fabrication steps involved in the fabrication of Organic LED. (a
full page)
Q2: Compare the brightness of OLED quantitatively with semiconductor LED emitting in
red, green and blue colors. (half a page)

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Solution Summary

The expert compares the brightness of OLED quantitatively with semiconductor LED emitting in red, green and blue colors.

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Fabrication of organic LED's
Organic light emitting devices are made from organic compounds. Photoluminescence from an organic materials like PPV(p-phenylene vinylene) can be achieved. Recipes for Organic LED's usually use PPV (poly(p-phenylene vinylene)), which is a very simple molecule. The search for other ideal materials for organic light emitting devices is still going on. The materials of interest are conjugated polymers that have a delocalized-electron system along the polymer backbone to impart semiconductor like properties. These properties arise because of double or triple bonds that cause the overlap of orbitals.

Making an OLED:
The materials required for making an organic LED are:
PPV poly(p-phenylene vinylene) --- thickness is approximately 100nm for spin cast film,
1 m for drop ...

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