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Molecular beam epitaxy (MBE) has been used to grow high-purity InP layers using solid sources and a graphite cracking zone to generate P2. Close control of slice temperature was achieved by mounting the substrate on a 3 in (75.6 mm) silicon wafer with indium solder. In addition, two differently packed phosphorus sources were investigated to assess the effect of oxides/water on InP purity. Several InP layers with a 77 K mobility of ∼50000 cm2V−1s−1 were grown using a phosphorus source vacuum-packed at manufacture.
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http://iet.metastore.ingenta.com/content/journals/10.1049/el_19860345
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