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A Solvent for Liquid‐Phase Layer Growth on BaF 2 Substrates
Author(s) -
Trifonova E. P.,
Kushev D. B.,
Duharska K.
Publication year - 1993
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170280408
Subject(s) - eutectic system , wetting , nucleation , contact angle , materials science , layer (electronics) , substrate (aquarium) , crystallization , solvent , phase (matter) , chemical engineering , deposition (geology) , cupola , chemistry , metallurgy , nanotechnology , composite material , microstructure , organic chemistry , paleontology , oceanography , sediment , geology , engineering , biology
Lead diiodide has been proposed as a solvent for liquid‐phase growth of PbTe layers on BaF 2 substrates. The contact with pre‐eutectic (PbI 2 ‐PbTe) solutions has resulted in deposition of PbI 2 islands of spherical cupola shape. The relatively small contact angle (16–25) indicates heterogeneous nucleation. At certain experimental conditions dense layers of PbI 2 have also been prepared. This crystallization is an indirect evidence for good wettability of the BaF 2 substrate.