Planar selective regrowth of high resistivity semi-insulating InP(Fe) by LP-MOVPE for buried lasers using TBP

Autor: Y. Le Bellego, Sophie Bouchoule, P Win, H Sik, Gilles Patriarche, P Boulet, Abdallah Ougazzaden, G Le Mestreallan
Rok vydání: 1998
Předmět:
Zdroj: Scopus-Elsevier
ISSN: 0022-0248
DOI: 10.1016/s0022-0248(98)00706-4
Popis: Selective planar regrowth of high resistivity (as high as 10 9 Ω cm) Fe-doped semi-insulating InP epitaxial layers has been studied to fabricate current confining layers for buried heterostructure lasers. The epitaxial layers were grown on patterned, nonplanar heterostructure mesa by low-pressure organometallic vapor phase epitaxy (LP-MOVPE) with tertiarybutylphosphine (TBP), trimethylindium (TMI) and iron dicyclopentadienyle (Fe(C 5 H 5 ) 2 ) as the reactant gases. The shape of the growth around masked mesas without any overhang of the mask has been studied as a function of both the growth conditions and the mesa height. Finally, an optimization of the growth conditions has been performed to planarize ridges as high as 2 μm, the layer quality being characterized by SEM.
Databáze: OpenAIRE