Technology term
Direct bandgap
A direct bandgap is an electronic structure in which an electron can move between the valence and conduction band edges without a substantial change in crystal momentum. This makes light absorption and emission efficient, which is useful in LEDs and thin solar absorbers, but it can also permit faster radiative recombination.
English
Direct bandgap
Arabic
فجوة الطاقة المباشرة
First appeared in
This Material Absorbs Sunlight Strongly Without Losing Charge as Fast
