How did Nick Holonyak invent the LED?

Nick Holonyak Jr. was an American engineer and educator best known for his 1962 invention of a light-emitting diode (LED) which emitted visible red light instead of infrared light.

How did Nick Holonyak invent the LED? Nick invented the LED by using the semiconductor material gallium arsenide phosphide (GaAsP) and the technique of stimulated emission (the process by which an incoming photon of a specific frequency can interact with an excited atomic electron (or other excited molecular state), causing it to drop to a lower energy level).

As mentioned earlier, Holonyak’s device emitted red light.

Holonyak’s invention was a game changer and after LEDs that produce green and blue light were developed (in the 1970s and ’90s, respectively), LEDs that emit white light became possible, revolutionizing the lighting industry.

Holonyak predicted that his LEDs would replace the incandescent light bulb of Thomas Edison in the February 1963 issue of Reader’s Digest, and as LEDs improve in quality and efficiency they are gradually replacing incandescents as the bulb of choice.

His other inventions include the red-light semiconductor laser, usually called the laser diode (used in CD and DVD players and cell phones) and the shorted emitter p-n-p-n switch (used in light dimmers and power tools).

In 2006, two of Holonyak’s papers made it to the American Institute of Physics’s top five most important papers in each of its journalssince it was founded 75 years ago.

• The first one, co-authored with S. F. Bevacqua in 1962, announced the creation of the first visible-light LED.
• The second, co-authored primarily with Milton Feng in 2005, announced the creation of a transistor laser that can operate at room temperatures.