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History of Science and Engineering

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LEDS-DEVELOPMENT MAJOR STEP
O.I. Rabinovich

The main chronological steps of light-emitting diodes (LEDs) development as the of optoelectronics phenomenon, starting from the elec-troluminescence effect to studding till contemporary high efficiency devices. The contribution of Russian scientists (O.V. Losev and Zh.I. Alferov – innovations in growing quaternary nanoheterostructures and study the physical nature of the effects that contribute to the emission of a quantum-well active region of the heterostructure, A.E. Yunovich and F.I. Manyahina – study the degradation characteristics of the LEDs), and foreign colleagues (Destriau N. Holonyak, H.P. Maruska, H. Amano. S. Nakamura - from the creation of the first examples of indicator LED to modern, high power ones) in the development of the applied area of science are discussed. The market analysis and the main field of LEDs applications are shown. The ways to reduce the degradation of performance LEDs are offered. Plenty photos and schemes are used which helps for more complete and accurate representations of modern state of one of the areas of optoelectronics.
Key words: light-emitting diodes; history; AlGaInN; AlGaInP; nanoheterostructure; degradation.


Contacts: E-mail: rabinwork@mail.ru

Pp. 23-34.

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