Nobel Prize

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French 10 octobre 2000 a décidé d’attribuer le Prix Nobel de Chimie de l’année 2000 conjointement à Alan J. HeegerUniversity of California at Santa Barbara, Californie, Etats-Unis, Alan G. MacDiarmidUniversité de Pennsylvanie, Philadelphie, Etats-Unis, Hideki ShirakawaUniversité de Tsukuba, Japon «pour la découverte et le développement des polymères conducteurs» Des plastiques qui conduisent l’électricité Nous pensions…

German 10. Oktober 2000 hat beschlossen, den Nobelpreis in Chemie für das Jahr 2000 gemeinsam zu verleihen an Alan J. HeegerUniversity of California at Santa Barbara, USA Alan G. MacDiarmidUniversity of Pennsylvania, Philadelphia, USA Hideki ShirakawaUniversity of Pennsylvania, Philadelphia, USA “für die Entdeckung und Entwicklung von leitenden Polymeren” Kunststoff, der Elektrizität leitet Wir haben gelernt,…

Swedish 10 oktober 2000 har beslutat utdela Nobelpriset i kemi för år 2000 gemensamt till Alan J. HeegerUniversity of Pennsylvania, Philadelphia, USA, Alan G. MacDiarmidUniversity of Pennsylvania, Philadelphia, USA, Hideki ShirakawaUniversity of Tsukuba, Japan “för upptäckten och utvecklandet av ledande polymerer” Plast som leder ström Vi har lärt oss att plaster, till skillnad från metaller,…

Editors: Prof. Thomas Hjertberg, Department of Polymer Technology, Chalmers University of Technology; Prof. Bengt Nordén, Chairman, Nobel Committee for Chemistry, and Eva Krutmeijer, Head of Information, The Royal Swedish Academy of Sciences. Layout and illustrations: Typoform Printing: Tryckindustri, Solna 2000 © , P.O. Box 50005, SE-104 05 Stockholm, Sweden. Phone:+46 8 673 95 00, fax:+46…

By analogy with semiconductor technology one speaks of doping the polymer when it is subjected to oxidation with iodine vapour. The more electrons are removed, the higher the degree of doping and the greater the conductivity.     While polyacetylene can be persuaded to conduct current as well as many metals do, this material is unfortunately…

The process giving rise to electro-luminescence can also be “run backwards”. Absorption of light creates positive and negative charges that are picked up by the electrodes, providing an electric current. This is the principle of the solar cell.     The advantage of plastic is that large, flexible surfaces can be made relatively easily and cheaply.…

  The exciting idea of combining the mouldability and low weight of plastics with the conductivity of metals has prompted intensive development. Since the conductivity can be varied over a very broad area, from poor semi-conductors to metallic-level conductivity, many commercial uses present themselves. Batteries, condensers, anti-static materials and anti-corrosion substances are some examples.

Although the polyacetylene film shone like silver, it was not an electrical conductor. Could it perhaps be modified in some way? In the mid-1970s the three Laureates began co-operating to investigate this and results were quick to come. When they caused the films to react with iodine vapour, the conductivity increased by as much as…