CuInS 2 crystals were successfully grown by the Hot-Press method at 700 °C for 1 h under high pressure in Cu-rich region. The In-rich samples were found to contain a small amount of secondary phase (CuIn 5S 8). Crystalline grain sizes in the In-rich region increased with increasing Cu/In ratio, whereas they remained constant in the Cu-rich region. All samples exhibited a low Sulfur concentration. This indicated that Cu atoms on In sites and In interstitials, and/or S vacancies might lead to an enhancement in electrical conductivity in both p- and n-type material.
|ジャーナル||Journal of Materials Science: Materials in Electronics|
|出版ステータス||出版済み - 4 2008|
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