A process developed at ETH Zurich enables the massive miniaturisation of organic light-emitting diodes (OLEDs) in only one single step. The light sources are now smaller than the wavelength of the ...

Diode lasers are electrically driven lasers generally made from semiconducting materials. In addition to the optical considerations common with all semiconductors, diode laser structures must also ...

Organic LEDs are light emitting diodes (LEDs) that use polymers or small organic molecules as their optically active element. Development of organic LEDs is driven in particular by its potential as a ...

Abstract: A small and effective uninterruptible power supply (UPS) circuit to provide a steady 5V output for low-power applications. The circuit makes use of BF245 JFET transistors (Q1 and Q2) to ...

Unlike most common symbols that you can easily find on your Mac’s keyboard, the ° symbol doesn’t have a dedicated key for it. That means, whenever you want to type the degree symbol on your Mac, you ...

Most business owners treat symbols like decoration. They browse a stock library, pick a generic globe or a handshake, and slap it on their website, assuming they have communicated “trust” or “global ...