Use of an Ion Gauge Beam Flux Monitor for Resistivity Control in CuInSe2 Grown by Molecular Beam Epitaxy

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Abstract

We have constructed and utilized a miniature ion gauge to set the copper, indium and selenium fluxes for the growth of CuInSe2 onto CdS to form solar photovoltaic heterojunctions. Resistivities from 0.01 Ω cm n type to 0.001 Ω cm p type can be reliably achieved to within a factor of 10 of the desired value. The copper-to-indium arrival rate ratio is critical in determining the layer resistivity of p-type material, with a high copper-to-indium ratio generally giving low resistivity. The selenium arrival rate is also important, however, in that low selenium rates always lead to n-type layers, independent of the copper-to-indium arrival rate ratio.

Original languageAmerican English
Pages (from-to)191-195
Number of pages5
JournalSolar Cells
Volume6
Issue number2
DOIs
StatePublished - 1982

Bibliographical note

Work performed by University of Maine, Orono, Maine, and Solar Energy Research Institute, Golden, Colorado

NLR Publication Number

  • ACNR/JA-213-4273

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