Method for preparing chalcopyrite-type compound
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsTakahiro Wada, Mikihiko Nishitani, Takayuki Negami
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Abstract
A chalcopyrite-type compound, for instance, CuInS.sub.2 or CuGaS.sub.2, is prepared by subjecting a Group I-III oxide composition, containing at least one of the Group Ib element, for instance copper (Cu), and at least one of the Group IIIb element, for instance indium (In) or gallium (Ga) to a heat treatment under a reducing atmosphere containing the Group VIb element, for instance sulfur (S) or selenium (Se), or under an atmosphere containing a reducing compound of the Group VIb element, thereby converting said oxide composition into a chalcopyrite-type compound.
Claims17
A method for preparing a Group I/III/VI chalcopyrite compound, which comprises:
- treating a Group I/III oxide composition, containing at least one of the Group Ib element and at least one of the Group IIIb element, with heat under a reducing atmosphere containing at least one gaseous compound of the Group VIb element or under an atmosphere containing a gaseous reducing compound of at least one of the Group VIb element, thereby converting said oxide composition into a Group I/III/VI chalcopyrite compound.
Dependencies are inferred from the claim text.