1. A method of fabricating a photovoltaic device, the method comprising:
depositing an organic semiconductor layer over a first electrode;
depositing a cross-linking ligand layer over the organic semiconductor layer;
depositing, over the cross-linking ligand layer, an inorganic nanocrystal layer comprising lead chalcogenide nanocrystals; and
depositing a second electrode over the inorganic nanocrystal layer.
2. The method as claimed in claim 1, wherein the lead chalcogenide nanocrystals are lead selenide or lead sulfide.
3. The method as claimed in claim 1, further comprising:
depositing one or more additional layers over the inorganic nanocrystal layer, wherein the one or more additional layers includes another cross-linking ligand layer; and
depositing another inorganic nanocrystal layer over the other cross-linking ligand layer.
4. The method as claimed in claim 1, further comprising:
depositing one or more additional inorganic nanocrystal layers over the inorganic nanocrystal layer.
5. The method as claimed in claim 4, wherein the one or more additional inorganic nanocrystal layers comprise lead chalcogenide nanocrystals.
6. The method as claimed in claim 4, wherein the one or more additional inorganic nanocrystal layers comprise one or more nanocrystals that include CdSe, CDS, ZnTe, ZnSe. PbS, PbSe, PbTe, HgS, HgSe, HgTe, HgCdTe, CdTe, CZTS, ZnS, CuInS2, CuInGaSe, CuInGaS, Si, InAs, InP, InSb, SnS2, CuS, or Fe2S3.
7. The method as claimed in claim 1, wherein the depositing the inorganic nanocrystal layer includes spin-coating, spray coating, inkjet printing, dip coating, spray pyrolysis, or screen printing.
8. The method as claimed in claim 1, wherein the organic semiconductor layer comprises a polyacene.
9. The method as claimed in claim 8, wherein the polyacene is pentacene.
10. The method as claimed in claim 1, wherein the cross-linking ligand layer comprises benzenedithiol.
11. The method as claimed in claim 1, further comprising:
imprinting the organic semiconductor layer prior to the depositing the cross-linking ligand layer over the organic semiconductor layer.
12. The method as claimed in claim 1, wherein the first electrode is an anode and the second electrode is a cathode.
13. A photovoltaic device comprising:
a first electrode;
a second electrode;
an organic semiconductor layer disposed between the first electrode and the second electrode; and
at least one cross-linked inorganic nanocrystal layer disposed over the organic semiconductor layer, wherein the at least one cross-linked inorganic nanocrystal layer comprises lead chalcogenide nanocrystals.
14. The photovoltaic device as claimed in claim 13, wherein the lead chalcogenide nanocrystals are lead selenide or lead sulfide.
15. The photovoltaic device as claimed in claim 13, wherein the at least one cross-linked inorganic nanocrystal layer includes a cross-linked ligand layer comprising benzenedithiol.
16. The photovoltaic device as claimed in claim 13, wherein the first electrode is an anode, and wherein the organic semiconductor layer is deposited on the anode.
17. The photovoltaic device as claimed in claim 13, wherein the organic semiconductor layer is a polyacence.
18. The photovoltaic device as claimed in claim 13, further comprising:
one or more additional layers disposed over the inorganic nanocrystal layer, wherein the one or more additional layers comprise another one or more benzenedithiol cross-linked inorganic nanocrystal layer.
19. The photovoltaic device as claimed in claim 13, further comprising:
one or more additional layers disposed over the inorganic nanocrystal layer, wherein the one or more additional layers comprise another inorganic nanocrystal layer.
20. The photovoltaic device as claimed in claim 19, wherein the other inorganic nanocrystal layer comprises lead chalcogenide nanocrystals.
21. The photovoltaic device as claimed in claim 19, wherein the other inorganic nanocrystal layer comprises CdSe, CDS, ZnTe, ZnSe, PbS, PbSe, PbTe, HgS, HgSe, HgTe, HgCdTe, CdTe, CZTS, ZnS, CuInS2, CuInGaSe, CuInGaS, Si, InAs, InP, InSb, SnS2, CuS, or Fe2S3.
22. A solar cell comprising an array of photovoltaic devices, wherein at least one of the photovoltaic devices comprises:
a first electrode;
a second electrode;
an organic semiconductor layer disposed between the first electrode and the second electrode; and
at least one cross-linked inorganic nanocrystal layer disposed over the organic semiconductor layer, wherein the at least one cross-linked inorganic nanocrystal layer comprises lead chalcogenide nanocrystals.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method of fabricating a conformal deltoid noodle, comprising:
providing a composite prepreg material having a length and a width, the length being aligned along a longitudinal axis;
subjecting the composite prepreg material to a cutting process to form a notched section along the length; and
rolling the composite prepreg material along its width to create the conformal deltoid noodle;
wherein the notched section resides substantially at the center of the deltoid noodle.
2. A method of fabricating a conformal deltoid noodle, comprising:
providing a composite prepreg material having a length and a width, the length being aligned along a longitudinal axis;
subjecting the composite prepreg material to a cutting process to form a notched section along the length; and
rolling the composite prepreg material along its width to create the conformal deltoid noodle;
wherein the composite prepreg material comprises unidirectional fibers aligned along the longitudinal axis.
3. The method of claim 1, and wherein the conformal deltoid noodle comprises a cylindrical shape longitudinally coextensive with the longitudinal axis.
4. A method of fabricating a conformal deltoid noodle, comprising:
providing a composite prepreg material having a length and a width, the length being aligned along a longitudinal axis;
subjecting the composite prepreg material to a cutting process to form a notched section along the length; and
rolling the composite prepreg material along its width to create the conformal deltoid noodle;
wherein the cutting process further comprises cutting the composite prepreg material along the length in a direction orthogonal to the longitudinal axis.
5. The method of claim 2, wherein the cutting process further comprises shearing the unidirectional fibers to form short fibers along the entire length of the notched section.
6. The method of claim 1, wherein the notched section includes a second width that is less than the width of the composite prepreg material.
7. The method of claim 1, wherein the rolling of the composite prepreg further comprises rolling the composite prepreg material along an edge residing within the notched section.
8. The method of claim 3, further comprising running the cylindrical shaped conformal deltoid noodle in a die to form a triangular shape.
9. A method of fabricating a composite component having reinforcement fibers, comprising
providing a platform having a length extending in a direction parallel to a plane;
providing a body including a first portion which extends in a first direction and a second portion which extends in a direction lateral to the first direction;
engaging the platform with the first portion to define a deltoid cavity;
forming a deltoid noodle comprising chopped fibers and unidirectional fibers;
inserting the deltoid noodle in the deltoid cavity; and
performing a curing process to bond the platform and the body to the deltoid noodle, thereby to form the composite component;
wherein the forming of the deltoid noodle further comprises:
providing a composite prepreg material having a second length and a width, the second length being aligned along a longitudinal axis;
subjecting the composite prepreg material to a cutting process to form a notched section along the second length; and
rolling the composite prepreg material along its width to create the deltoid noodle.
10. The method of claim 9, wherein the composite prepreg material comprises unidirectional fibers aligned along the longitudinal axis.
11. The method of claim 9, wherein the deltoid noodle comprises a cylindrical shape longitudinally coextensive with the longitudinal axis.
12. The method of claim 9, wherein the cutting process further comprises cutting the composite prepreg material along the second predetermined length in a direction orthogonal to the longitudinal axis.
13. The method of claim 10, wherein the cutting process further comprises shearing the unidirectional fibers to form short fibers along the entire length of the notched section.
14. The method of claim 9, wherein the notched section includes a second width that is less than the width of the composite prepreg material.
15. The method of claim 9, wherein the rolling of the composite prepreg further comprises rolling the composite prepreg material along an edge residing within the notched section.
16. The method of claim 9, wherein the notched section resides substantially at the center of the deltoid noodle.
17. The method of claim 11, further comprising running the cylindrical shaped deltoid noodle in a die to form a triangular shape.