Fe is still the commonly used dopant to fabricate semi-insulating(SI) InP, a key material for high-speed electronic and optoelectronic devices. High resolved absorption spectra of the internal d-d shell transitions at Fe2+ in InP and the related phonon sidebands and a series of iron related absorption Lines are presented. Detailed infrared absorption study of the characteristic spectra of four zero-phonon lines(ZPLs), which are attributed to transitions within the 5D ground state of Fe2+ (3d(6)) on the indium site in a tetrahedral crystal field of phosphorus atoms and their temperature effects are given.
Han YJ; Liu XL; Lao JH; Lin LY .On the nature of iron in InP: A FTIR study .见：SPIE-INT SOC OPTICAL ENGINEERING .INTEGRATED OPTOELECTRONICS II, 3551,1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA ,1998,1-4
