The first official LED was created in 1927 by Russian ... gallium arsenide, gallium antimonide, indium phosphide, and silicon-germanium in an attempt to create a practical device.

A group of scientists led by the Universidad Complutense de Madrid in Spain has fabricated an intermediate band (IB) solar cell based on gallium phosphide (Gap) and titanium (Ti) for the first time.

A focus-stacked macro photograph of a fabricated gallium phosphide photonic chip featuring multiple spiral waveguides and other test structures. The chip width is just 0.55 cm across. Due to the ...

The researchers built the device with an electron-blocking layer made of aluminium gallium arsenide phosphide (AlGaAsP), instead of more commonly used gallium indium phosphide (GaInP), that was ...