Bulk PbI, crystals up to 20cm3 have been grown from high purity source material in a controlled way using a modified Bridgman-Stockbarger technique. The cleavage plane (0001) of crystals grown by a natural seed selection in a tipped-end ampoule is nearly parallel to its axis. O n a mica substrate epitaxially grown crystals cleaved perpendicularly to the axis of a specially designed double wall ampoule.Pb1,-Einkristalle (Volumen bis 20 cm3) wurden aus hochreinem Ausgangsmaterial auf definierte Weise geziichtet. Die spontane Keimauslese erfolgte in der konischen Ampullenspitze. Die Spaltflache (0001) der geziichteten Kristalle ist fast parallel zur Ampullenachse. Epitaktisch auf einem Glimmersubstrat gewachsene Kristalle spalten senkrecht zu der Achse einer speziell entwickelten doppelwandigen Ampulle.
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