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Science 11 June 1993:
Vol. 260. no. 5114, pp. 1653 - 1655
DOI: 10.1126/science.260.5114.1653
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Articles

Synthesis of Polycrystalline Chalcopyrite Semiconductors by Microwave Irradiation

Christopher C. Landry 1 and Andrew R. Barron 1

1 Department of Chemistry, Harvard University, Cambridge, MA 02138

Polycrystalline samples of the chalcopyrites CulnS2, CulnSe2, and CulnSSe were Prepared from stoichiometric mixtures of the pure elements by microwave irradiation. The reactions were performed in sealed quartz tubes in as few as 3 minutes. The products were analyzed by x-ray diffraction, scanning electron microscopy, energy dispersive x-ray analysis, and x-ray photoelectron spectroscopy. The surface morphology and shape of the particles produced by this method suggest that the products are formed from liquid melts. This method could be applied to the production of bulk chalcopyrite as sources for thin film growth.

Submitted on February 22, 1993
Accepted on May 3, 1993

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Science. ISSN 0036-8075 (print), 1095-9203 (online)