Claims
- 1. A hybrid crystalline organic-inorganic quantum confined system comprising alternating layers of bifunctional organic ligands and II-VI semiconducting chalcogenides, wherein:the semiconducting chalcogenide layer comprises II-VI chalcogenides having the formula MQ, in which each M is independently selected from the group consisting of II-VI semiconductor cationic species, and each Q is independently selected from the group consisting of S, Se and Te; and said bifunctional organic ligands of each organic ligand layer are bonded by a first functional group to an element M of an adjacent II-VI semiconducting chalcogenide layer and by a second functional group to an element M from the adjacent opposing II-VI semiconducting chalcogenide layer, so that said adjacent opposing I-VI semiconducting chalcogenide layers are linked by said bifunctional organic ligands of said organic ligand layers.
- 2. The quantum confined system of claim 1, wherein M of said hybrid compound is Zn or Cd.
- 3. The quantum confined system of claim 1, wherein Q of said hybrid compound is Se or Te.
- 4. The quantum confined system of claim 1, wherein the bifunctional organic ligand of said of hybrid compound is an organic diamine having the formula R—(NH2)2, wherein R is a C2-C6 straight-chained or branched, substituted or unsubstituted, saturated or unsaturated, aliphatic or cycloaliphatic hydrocarbon.
- 5. The quantum confined system of claim 4, wherein said diamine of said hybrid compound is ethylenediamine or 1, 3-propanediamine.
- 6. The quantum confined system of claim 1, further comprising additional II-VI semiconducting chalcogenide layers between adjacent opposing bifunctional organic ligand layers.
- 7. A semiconductor device comprising the quantum confined system of claim 1.
- 8. A method for the preparation of a crystalline organic-inorganic hybrid quantum confined system comprising plural alternating layers of a bifunctional organic ligand and II-VI semiconducting chalcogen, said method comprising the step of heating a mixture comprising;(a) a salt of one or more II-VI semiconductor cationic species; (b) one or more chalcogens selected from the group consisting of S, Se and Te; and (c) a bifunctional organic compound capable of forming covalent or coordinate bond with said II-VI semiconductor cationic species; at a temperature effective to form said hybrid compound, until said hybrid compound is formed.
- 9. A method according to claim 8, wherein said salt is a salt of Zn or Cd.
- 10. The method of claim 8, wherein said chalcogen is Se or Te.
- 11. The method of claim 8, wherein said bifunctional organic compound is an organic diamine having the formula R—(NH2)2, wherein R is a C2-C6 straight-chained or branched, substituted or unsubstituted, saturated or unsaturated, aliphatic or cycloaliphatic hydrocarbon.
- 12. The method of claim 11, wherein said organic diamine is ethylenediamine or 1, 3-propanediamine.
Parent Case Info
This application claims the benefit of Provisional application Ser. No. 60/282,967, filed Apr. 11, 2001.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
6420056 |
Chondroudis et al. |
Jul 2002 |
B1 |
Non-Patent Literature Citations (1)
Entry |
Calvin, et al.—“Light-Emitting Diodes Made from Cadmium Selenide Nanocrystals and a Semiconducting Polymer”, Nature, 370, 354-357 (1994), Aug. |
Provisional Applications (1)
|
Number |
Date |
Country |
|
60/282967 |
Apr 2001 |
US |