p and n-type germanium layers grown using iso-butyl germane in a III-V metal-organic vapor phase epitaxy reactor |
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Authors: | Roberto Jakomin Gregoire BeaudoinNoelle Gogneau Bruno LamareLudovic Largeau Olivia MauguinIsabelle Sagnes |
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Affiliation: | a LPN-CNRS, Route de Nozay, 91460 Marcoussis, Franceb Dow Electronic Materials, 3 avenue Jules Rimet, 93631 La Plaine Saint Denis, France |
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Abstract: | We report on the growth of n- and p-doped Germanium (Ge) on Ge substrates by Metal-Organic Vapor Phase Epitaxy (MOVPE). Iso-butyl germane, a liquid metal-organic source less toxic than Germane, is used as Ge precursor. We demonstrate the p-doping of Germanium by MOVPE using Trimethylgallium. The influence of the growth parameters for n and p-type doping is studied in order to optimize the morphology, the structural and the electrical properties of the Ge layers. The controlled growth of p and n doped Ge layers opens the possibility to realize totally epitaxially grown Ge diodes with improved performances, for example, for solar cell applications. |
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Keywords: | Metal-organic chemical vapor deposition Germanium Doping Solar cells |
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