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Nobel Prizes and Laureates

Nobel Prizes and Laureates

The Nobel Prize in Chemistry 2000
Alan Heeger, Alan MacDiarmid, Hideki Shirakawa

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Alan Heeger - Facts

Alan J. Heeger

Alan J. Heeger

Born: 22 January 1936, Sioux City, IA, USA

Affiliation at the time of the award: University of California, Santa Barbara, CA, USA

Prize motivation: "for the discovery and development of conductive polymers"

Field: physical chemistry

Prize share: 1/3

Work

Plastic material is composed of polymers - very large molecules that take the form of long chains of smaller molecules. Plastic usually does not conduct electricity, but at the end of the 1970s Alan Heeger, Alan MacDiarmid, and Hideki Shirakawa demonstrated that it is possible to produce conductive polymers. This requires alternating single and double bonds between carbon atoms in the chain and doping the polymers through the addition of suitable atoms so that free electrons or holes appear after the electrons. Conductive polymers can be used in electronics and other applications.

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