Bis(thiolate) compounds of group II metals

Details Bis(thiolate) compounds of group II metals Bis(thiolate) compounds of group II metals

1994-08-18

1996-05-14

Reamer, James H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfur containing

556 10, 556427, C07C31902

Patent

active

055169457

ABSTRACT:
A new class of Group II bis(oligoetherthiolate) compounds is described for use in chemical vapor deposition processes in that it is volatile and soluble in common organic solvents, thereby rendering it suitable in the preparation of displays with full color, bright phosphors, which at present use ZnS-based technology. The drawback with ZnS is that the blue efficiency is too low. In another competing technology, MGa.sub.2 S.sub.4 -based materials, the sputtered films are amorphous, and the crystallization temperature is too high for inexpensive glass, thereby necessitating the use of expensive quartz. The instant invention secures the advantage of not depositing amorphous material in a two-step process. Rather a one-step process is used to get crystalline material directly, thereby providing a superior route to MGa.sub.2 S.sub.4 in that it has the potential to give higher quality films at reduced cost.

REFERENCES:
patent: 3431239 (1969-03-01), Morris et al.
patent: 4255561 (1981-03-01), Wood et al.
patent: 5168540 (1992-12-01), Winn et al.
patent: 5213844 (1993-05-01), Purdy
patent: 5306836 (1994-04-01), Purdy

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