Copper blend I-VII compound semiconductor light-emitting devices
View Patent ↗Implementations and techniques for semiconductor light-emitting devices including one or more copper blend I-VII compound semiconductor material barrier layers are generally disclosed.
1. A method of making a semiconductor light-emitting device comprising:
depositing an n-type contact layer on a substrate;
depositing an n-type region on the n-type contact layer;
depositing a first barrier layer on the n-type region;
depositing a copper blend I-VII compound semiconductor light-emitting layer on the first barrier layer;
depositing a second barrier layer on the copper blend I-VII compound semiconductor light-emitting layer;
depositing a p-type region on the second barrier layer; and
depositing an electrode, wherein:
at least one of the first barrier layer or the second barrier layer includes a copper blend I-VII compound semiconductor material.
2. The method of claim 1 , wherein at least one of the first barrier layer or second barrier layer comprises a quaternary copper blend I-VII compound semiconductor material.
3. The method of claim 1 , wherein at least one of the first barrier layer or second barrier layer comprises a CuIBrCl-type quaternary copper blend I-VII compound semiconductor material.
4. The method of claim 1 , wherein at least one of the first barrier layer or second barrier layer comprises a ternary copper blend I-VII compound semiconductor material.
5. The method of claim 1 , wherein at least one of the first barrier layer or second barrier layer comprises a CuICl-type copper blend I-VII compound semiconductor material.
6. The method of claim 1 , wherein the copper blend I-VII compound semiconductor comprises CuCl, CuBr, CuI or combinations thereof.
7. The method of claim 1 , wherein the n-type region and/or the p-type region comprises an I-VII compound semiconductor.
8. The method of claim 1 , wherein the substrate comprises an Si(111) surface.
9. The method of claim 1 , wherein the electrode comprises a transparent electrode.
10. The method of claim 1 , further comprising:
depositing a metal electrode on the n-type contact layer.
11. The method of claim 1 , wherein at least one of the first barrier layer or the second barrier layer has a material composition adapted to cause a spontaneous polarization field and a piezoelectric polarization field in the copper blend I-VII compound semiconductor light-emitting layer to have opposite directions.
12. The method of claim 1 , wherein the copper blend I-VII compound semiconductor comprises CuCl, CuBr, CuI or combinations thereof,
wherein at least one of the first barrier layer or the second barrier layer comprises a CuIBrCl-type quaternary copper blend I-VII compound semiconductor material,
wherein the n-type region and/or the p-type region comprises an I-VII compound semiconductor,
wherein the substrate includes an Si(111) surface, and
wherein at least one of the first barrier layer or the second barrier layer has a material composition adapted to cause a spontaneous polarization field and a piezoelectric polarization field in the copper blend I-VII compound semiconductor light-emitting layer to have opposite directions.