[citation needed] Academician Abdullayev was one of the founders of Soviet semiconductors physics and a leading scientist in new technologies.

He made an outstanding contribution to the development of electronics, astrophysics, aeronautics, medicine, biophysics and defense industries.

Discovered new groups of binary and ternary compounds of selenium and tellurium, suggested diodes with controlled electronic memory, created complex semiconductors used as receivers for visible and infrared spectrum areas.

Carried out a set of research projects to receive semiconductor monocrystals of complex chemical composition for lasers and memory modules.

In 1954, Hasan Abdullayev founded the Department of Semiconductor Physics at the Baku State University (BSU).

[11] Academician Abdullayev's lifelong research and work concentrated on chemical elements selenium and tellurium, their applications in semiconductors, biophysics and nuclear sciences.

Zhores Alferov, the Nobel-prize winning physicist, praised the work and legacy of his late colleague and friend, academician Abdullayev, recognizing how hard it was for Azerbaijani scientists to rise even within USSR, much less in the world, and only a few people as Abdullayev managed to do it, creating new industries and directions in physics and other sciences.

[12][13] At the initiative and under the direct leadership of academician Hasan Abdullayev the following research and scientific institutions and initiatives were established:[14][15] Academician Hasan Abdullayev was honored with the top Soviet award — the Order of Lenin in 1978,[16] the Order of the Red Banner of Labour,[citation needed] the Vavilov Gold Medal of the Federation of Cosmonautics[17] Siolkovsky Gold Medal of the Federation of Cosmonautics, was laureate of Azerbaijan SSR State Award in 1972,[18] was an Honored Scientist of Azerbaijan SSR,[19] and with other medals and prestigious Soviet and international scientific awards.

"Original quote in Russian: "Начиная с 1960-года, и примерно до 1987 года в Баку я был много раз.

Я не могу сказать как обстоят дела с физикой в Азербайджане сегодня, но думаю, что они далеки от благополучия.

"Original quote from the Great Soviet Encyclopedia in Russian: "Большой вклад в создание Полупроводниковой электроники внесли советские учёные — физики и инженеры (А. Ф. Иоффе, Н. П. Сажин, Я. И. Френкель, Б. М. Вул, В. М. Тучкевич, Г. Б. Абдулаев, Ж. И. Алферов, К. А. Валиев, Ю. П. Докучаев, Л. В. Келдыш, С. Г. Калашников, В. Г. Колесников, А. В. Красилов, В. Е, Лашкарёв, Я. А. Федотов и многие др.)."