Light-emitting diodes with an emission wavelength longer than 365 nm typically have GaN or InGaN quantum wells (QWs) in the active region, and those with shorter wavelengths in general have AlGaN QWs.

The expressions include only experimentally obtained and derived values. These expressions have been used to check the performance of logarithmic amplifier using light emitting diode (LED) as a ...

Institute of Semiconductor and Solid State Physics, Johannes Kepler University, Altenberger Straße 69, Linz 4040, Austria ...

This paper provides an overview of the progress in the device physics and fabrications of the Si QD light-emitting diodes (LEDs) including new device structures to improve the light extraction ...

School of Electrical Engineering, Graduate School of Semiconductor Technology, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea ...

These days it feels like red-light therapy is the Swiss Army knife of skin care: It can help reduce fine lines, quell inflammation and redness, and even minimize acne. Another potential perk?

Here’s another common and confusing Echo indicator light: the mysterious solid red light. The most likely culprit for the red light is a pressed microphone mute and/or camera-off button.

Hoover Pugedo light traps were modified for use with green and blue-light-emitting diodes to trap phlebotomine sandflies in northeastern Brazil. A total of 2,267 specimens belonging to eight genera ...

But regardless of how they look, most Echo devices are equipped with an LED indicator light. This can flash a variety of colors depending on the status of your Echo device. But what does the ...