Process for preparing an electroluminescent film

U.S. Patent Number: 5372839

Abstract: A process for preparing an electroluminescent film which comprises causing a substrate held at a high temperature to simultaneous contact two kinds of vapors of (a) Group II element and a Group VI element or a compound thereof, capable of forming a Group II-VI compound semiconductor, and (b) a halide of an element capable of acting as luminescent centers in the Group II-VI compound semiconductor, in the presence of flowing hydrogen or an inert gas, whereby a thin electroluminescent film comprising the Group II-VI compound semiconductor and containing the element forming the luminescent centers is formed on the surface of the substrate.

Inventors: Mikami; Akiyoshi (Yamatotakada, JP), Tanaka; Koichi (Nara, JP), Taniguchi; Kouji (Nara, JP), Yoshida; Masaru (Nara, JP), Nakajima; Shigeo (Nara, JP)

Assignee: Sharp Kabushiki Kaisha (Osaka, JP)

Application Number: 07/789,818

Issued: 1994-12-13

Expired: 2006-12-13

Classes: 427/66 ; 427/255.18; 427/255.21; 427/314; 427/69; 427/70

Field of search: 427/66,69,70,250,255.2,314,255

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