Room-temperature, electric field-induced creation of stable devices in CuInSe2 crystals

David Cahen, Jean Marc Gilet, Claus Schmitz, Leonid Chernyak, Konstantin Gartsman, Abram Jakubowicz

Research output: Contribution to journalArticlepeer-review

59 Scopus citations

Abstract

Multiple-junction structures were formed, on a microscopic scale, at room temperature, by the application of a strong electric field across originally homogeneous crystals of the ternary chalcopyrite semiconductor CuInSe2. After removal of the electric field, the structures were examined with electron beam-induced current microscopy and their current-voltage characteristics were measured. Bipolar transistor action was observed, indicating that sharp bulk junctions can form in this way at low ambient temperatures. The devices are stable under normal (low-voltage) operating conditions. Possible causes for this effect, including electromigration and electric field-assisted defect reactions, are suggested.

Original languageEnglish
Pages (from-to)271-274
Number of pages4
JournalScience
Volume258
Issue number5080
StatePublished - 9 Oct 1992
Externally publishedYes

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