Georgi Nadjakov

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Georgi S. Nadjakov
Born 26 December 1896
Dupnitsa, Bulgaria
Died 24 February 1981
Sofia
Nationality Bulgarian
Fields Physics
Institutions Institute of Physics, Bulgarian Academy of Sciences
Alma mater Sofia University

Georgi Nadjakov (December 26, 1896 - February 24, 1981) was a famous Bulgarian physicist. He became a corresponding member of the Göttingen Academy of Sciences (1940) in Germany, member of the Bulgarian Academy of Sciences (1945) and member of the Russian Academy of Sciences (1958).

Sofia University sent him to specialize in the laboratories of Paul Langevin and Marie Curie in Paris, where he investigated photoelectricity for one year.

Georgi Nadjakov experimentally investigated photoconducting properties of sulphur. He prepared the permanent photoelectret state of matter for the first time and published his paper in 1937 [1] and 1938.[2] He called[citation needed] the electret discovered by Mototaro Eguchi in 1919, thermoelectret and the electret discovered by him in 1937, photoelectret.[3][4]
Photoelectrets were the most notable achievement of Georgi Nadjakov. It's practical application led to the invention of the photocopier by Chester Carlson some years later.

Honours[edit]

The study of Georgy Nadjakov is a Historic Site of the European Physical Society since 23 May 2014.[5]

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