Patent ID: 6815736
Filing Date: 2004-11-09
Classification: H01L,H01S,Y02E

Abstract:
A method of modifying a semiconductor compound or alloy comprising host atoms in a host crystal lattice to have a lower effective bandgap than the semiconductor compound or alloy has prior to modification, comprising:isoelectronically co-doping the semiconductor compound or alloy with a first isoelectronic dopant comprising atoms that form isoelectronic electron traps in the host crystal lattice that behave as deep acceptors and with a second isoelectronic dopant comprising atoms that form isoelectronic hole traps in the host crystal lattice that behave as deep donors, such that content of the first isoelectronic dopant in the semiconductor compound or alloy is more than 1 at. % and content of the second isoelectronic dopant in the semiconductor compound or alloy is more than 1 at. %.