HASAN MAMEDBAGIR OGLU ABDULLAYEV

(1918 � 1993)

Hasan Mamedbagir oglu Abdullayev was born on August 20, 1918 in village Yayji of Julfa district of Nakhichevan Autonomous Republic of Azerbaijan.

He was elected as a President of the Academy of Sciences in 1970 � 1983.

He was elected as a Correspondent Member of the Academy in 1955 and as an Active Member of the Academy in 1967.

In 1957-58 he was working as a Director of the Institute of Mathematics and Physics of the Academy of Sciences.

In 1968-1970 he was an Academician �Secretary of the Section of Mathematics, Physics and Technical Sciences of the Academy of Sciences.

In 1970 he became a Laureate of State Award of the Azerbaijan Republic in the field of Science and in 1974 he became an Honoured Scientist of the Azerbaijan Republic.

Hasan Abdullayev have achieved a number of remarkable results in research of the role of selenium in biological processes, physics of semi-conductor devices developed on the basis of selenium and tellurium.

A range of new complex semi-conductor based devices, including those with electrical memory for long-term data storage, working on new physical principles was created under his guidance. He had patents form USA and France for his new thermo-electrical semi-conductor based converters.

With his initiative a Department of Semi-conductor Physics at the Baku State University was founded in 1956. He created a scientific school on semi-conductor physics in Azerbaijan. He was a member of scientific board on �Physics and Chemistry of Semi-Conductors� of the Academy of Sciences of the USSR and Chairman of Scientific Council on Problems of Physics of �Knowledge� Society of the Azerbaijan Republic.

Hasan Abdullayev represented Azerbaijan at numerous scientific forums and congresses. He lectured on physics of semi-conductors in USA in 1970 and Turkey in 1974. He was the author to a series of scientific publications on research and application of semi-conductor materials and devices. His monograph �Electronic semi-conductors and their application� was the first scientific publication on the physics of semi-conductors published in Azeri language.

He was an author to 13 monographs, tenth of text books and numerous scientific articles. He had 35 Certificates of Authorships received for new materials and devices he proposed and designed.

Hasan Abdullayev died in 1993 in Baku.