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Alan Jay Heeger (born January 22, 1936) is an American physicist, academic and Nobel Prize laureate in chemistry. Heegar was elected as a member into the National Academy of Engineering in 2002 for co-founding the field of conducting polymers and for pioneering work in making these novel materials available for technological applications.
The two developed the electrical conductivity of polyacetylene along with American physicist Alan Heeger. [3] [4] In 1977 they discovered that doping with iodine vapor could enhance the conductivity of polyacetylene. The three scientists were awarded the Nobel Prize in Chemistry in 2000 in recognition of the discovery.
He then went to the Institute for Polymers & Organic Solids at the University of California, Santa Barbara, California, United States, where he worked for four years and, together with Alan J. Heeger (Nobel Prize in Chemistry, 2000) discovered and investigated the polymeric organic solar cells has (1992–1996). In April 1996, he accepted the ...
Undoped trans-polyacetylene films have a conductivity of 4.4×10 −5 Ω −1 cm −1, while cis-polyacetylene has a lower conductivity of 1.7×10 −9 Ω −1 cm −1. [19] Doping with bromine causes an increase in conductivity to 0.5 Ω −1 cm −1 , while a higher conductivity of 38 Ω −1 cm −1 is obtained through doping with iodine. [ 10 ]
This is a list of Nobel Prize laureates by country. Listings for Economics refer to the related Nobel Memorial Prize in Economic Sciences. The Nobel Prizes and the Prize in Economic Sciences have been awarded 577 times to 889 recipients, of which 26 awards (all Peace Prizes) were to organizations. Due to some recipients receiving multiple ...
The global longevity and anti-senescence-therapy market was valued at $25.1 billion in 2020 and is projected to reach $44.2 billion by 2030, according to Allied Market Research.
Notable attendees included Iranian lawyer Shireen Ebadi, who was awarded the Nobel Peace Prize in 2003, and British-Iranian woman Nazanin Zaghari Ratcliffe, who shared a cell with Mohammadi during ...
1 Nobel Prize and Turing Award Laureates. ... Alan Heeger: Ph.D. 1961: 2000: ... including early efforts in digital speech processing, ...