Solid state doping of CdxHg1-xTe epitaxial layers with elements of V group.

Autor: Vlasov, A. P., Bonchyk, O. Yu., Fodchuk, I. M., Zaplitnyy, R. A., Barcz, A., Swiatek, Z. T.
Předmět:
Zdroj: Semiconductor Physics, Quantum Electronics & Optoelectronics; 2006, Vol. 9 Issue 1, p36-42, 7p
Abstrakt: Presented here are the results of studying the controlled doping with elements of V group of the periodic table, arsenic As and antimony Sb, of narrow gap CdxHg1-xTe epitaxial layers during the isothermal growth from the vapour phase by the evaporation-condensation-diffusion method. Three types of impurity sources have been used for solid state doping: homogeneously doped with As(Sb) single crystal substrates of CdTe, As doped buffer CdyHg1-yTe (y > x) epitaxial layers obtained by RF sputtering in mercury glow discharge onto undoped CdTe substrates, and As(Sb) implanted undoped CdTe substrates. The results of comparative analysis of galvano-magnetic measurements and SIMS spectra indicated very high, practically nearly ∼100 %, electrical activity of dopants in the CdxHg1-xTe epitaxially grown layers. [ABSTRACT FROM AUTHOR]
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