07-08-2014 дата публикации
Номер: US20140216555A1
Metal chalcogenides, and methods of making and using metal chalcogenides, are disclosed herein. Metal chalcogenides can be prepared by heating suitable copper, zinc, and/or tin compounds selected from the group consisting of chalcogenocarbamates, dichalcogenocarbamates, mercaptides, thiiocarbonates, trithiocarbonates, and combinations thereof (e.g., copper, zinc, and/or tin dichalcogenocarbamates) under conditions effective to form metal can be used, for example, to prepare solar cells. 1. A method of preparing a metal chalcogenide comprising heating components comprising:at least one copper, zinc, and/or tin compound selected from the group consisting of chalcogenocarbamates, dichalcogenocarbamates, mercaptides, thiolates, dithiolates, thiocarbonates, dithiocarbonates, trithiocarbonates, and combinations thereof;{'sub': 2+x+z', '1-x', '1-z', '4, 'wherein heating comprises conditions effective to form a compound of the formula CuZnSnA, wherein'}A represents one or more chalcogens;−1≦x≦1;−1≦z≦1; andwith the proviso that when x=z they are not equal to 1.2. The method of wherein the at least one copper dichalcogenocarbamate is of the formula Cu(A-(A)C—NRR) claim 1 ,{'sup': 1', '2', '1', '2, 'wherein each Rand Rindependently represents H or an organic group in which Rand Rcan optionally be joined to form one or more rings; and'}each A independently represents a chalcogen.3. The method of wherein the at least one zinc dichalcogenocarbamate is of the formula Zn(A-(A)C—NRR) claim 1 ,{'sup': 1', '2', '1', '2, 'wherein each Rand Rindependently represents H or an organic group in which Rand Rcan optionally be joined to form one or more rings; and'}each A independently represents a chalcogen.4. The method of wherein the at least one tin dichalcogenocarbamate is of the formula Sn(A-(A)C—NRR) claim 1 ,{'sup': 1', '2', '1', '2, 'wherein each Rand Rindependently represents H or an organic group in which Rand Rcan optionally be joined to form one or more rings; and'}each A ...
Подробнее