LED voltages lends to different colors?

[Robin07]

I heard through the grape vine that applying different voltages will emit different colors of light from an LED mainly red, green, white and blue. Is this accurate or is it that the architecture of each LED is different. Are there LEDs that are sensitive to various voltages? If so what would these be called?

 

[dlgoff]

The colors of the LEDs are determined by their semiconductor materials which determines there operating voltage.

Check out this http://en.wikipedia.org/wiki/Light-emitting_diode#Colors_and_materials"

 

[oswaler]

Yes, it is accurate that applying different voltages to an LED can result in different colors of light being emitted. This is due to the physics of how LEDs work. When an LED is powered, electrons flow through a semiconductor material, releasing energy in the form of photons (light). The color of the light emitted is determined by the energy level of the electrons, which is affected by the voltage applied.

The architecture of an LED can also play a role in the colors it can emit. For example, some LEDs may have multiple layers of different semiconductor materials, allowing them to emit a wider range of colors.

There are also LEDs that are specifically designed to be sensitive to different voltages. These are known as "tunable" or "color-tunable" LEDs. They have the ability to change color based on the voltage applied, allowing for a wider range of color options. These types of LEDs are commonly used in applications such as stage lighting and mood lighting.

In summary, both the voltage applied and the architecture of an LED can affect the colors it can emit. Tunable LEDs are specifically designed to be sensitive to different voltages and offer a wider range of color options.