Crystal chemical models of
point defects in compounds of the Pb–Cr–Te system
Chem.
Met. Alloys 3 (2010) 29-34
https://doi.org/10.30970/cma3.0119
Dmytro FREIK, Liliya TUROVSKA, Lyubov
MEZHYLOVSKA, Volodymyra BOYCHUK
Models describing point defects in chromium
doped lead telluride crystals and in the solid solutions PbTe–CrTe and PbTe–Cr3Te4
have been developed. Based on the proposed quasi-chemical formulae, the
dependence of the concentration of defects and free carriers, and the Hall
concentration of current carriers, on the content of dopant and the deviation
from PbTe stoichiometry, have been calculated. The mechanisms of doping and
solid solution formation have been analyzed.
Çàëåæí³ñòü õîëë³âñüêî¿ êîíöåíòðàö³¿ (1 – nH) òà êîíöåíòðàö³¿ òî÷êîâèõ äåôåêò³â (N³)
äëÿ êðèñòàë³â p-PbTe:Cr (β = 0.013 àò. %) â³ä âì³ñòó
äîì³øêè Cr. Ni: 2 – [
], 3 – [
], 4 – [
], 6 – [
].
Keywords
Lead telluride / Solid solutions / Point
defects / Quasi-chemical formulae