Carrier generation and recombinationIn the solid-state physics of semiconductors, carrier generation and carrier recombination are processes by which mobile charge carriers (electrons and electron holes) are created and eliminated. Carrier generation and recombination processes are fundamental to the operation of many optoelectronic semiconductor devices, such as photodiodes, light-emitting diodes and laser diodes. They are also critical to a full analysis of p-n junction devices such as bipolar junction transistors and p-n junction diodes.
ÉpitaxieL'épitaxie est une technique de croissance orientée, l'un par rapport à l'autre, de deux cristaux possédant un certain nombre d'éléments de symétrie communs dans leurs réseaux cristallins. On distingue l'homo-épitaxie, qui consiste à faire croître un cristal sur un cristal de nature chimique identique, et l'hétéro-épitaxie, dans laquelle les deux cristaux sont de natures chimiques différentes. Étymologiquement, « épi » en grec signifie « sur » et « taxis », « arrangement ».
Definition of Free Cultural WorksThe Definition of Free Cultural Works evaluates and recommends compatible free content licenses. The Open Content Project by David A. Wiley in 1998 was a predecessor project which defined open content. In 2003, Wiley joined the Creative Commons as "Director of Educational Licenses" and announced the Creative Commons and their licenses as successors to his Open Content Project. Therefore, Creative Commons' Erik Möller in collaboration with Richard Stallman, Lawrence Lessig, Benjamin Mako Hill, Angela Beesley, and others started in 2006 the Free Cultural Works project for defining free content.
