Single-source precursors for ternary chalcopyrite materials,...

Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing

Reexamination Certificate

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C556S021000, C556S030000, C556S031000, C427S248100, C427S587000, C427S593000, C117S003000, C117S084000

Reexamination Certificate

active

06992202

ABSTRACT:
A single source precursor for depositing ternary I-III-VI2chalcopyrite materials useful as semiconductors. The single source precursor has the I-III-VI2stoichiometry “built into” a single precursor molecular structure which degrades on heating or pyrolysis to yield the desired I-III-VI2ternary chalcopyrite. The single source precursors effectively degrade to yield the ternary chalcopyrite at low temperature, e.g. below 500° C., and are useful to deposit thin film ternary chalcopyrite layers via a spray CVD technique. The ternary single source precursors according to the invention can be used to provide nanocrystallite structures useful as quantum dots. A method of making the ternary single source precursors is also provided.

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