Methods and apparatus for forming photovoltaic cells using electrospray
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01L-031/04
C23C-018/12
H01L-031/0384
H01L-031/18
H01G-009/20
H01L-027/30
출원번호
US-0953758
(2007-12-10)
등록번호
US-9040816
(2015-05-26)
발명자
/ 주소
Gupta, Anand
출원인 / 주소
Nanocopoeia, Inc.
대리인 / 주소
Schwegman Lundberg & Woessner, P.A.
인용정보
피인용 횟수 :
0인용 특허 :
94
초록▼
Methods of forming a photovoltaic structures including nanoparticles are disclosed. The method includes electrospray deposition of nanoparticles. The nanoparticles can include TiO2 nanoparticles and quantum dots. In an example, the nanoparticles are formed on a flexible substrate. In various example
Methods of forming a photovoltaic structures including nanoparticles are disclosed. The method includes electrospray deposition of nanoparticles. The nanoparticles can include TiO2 nanoparticles and quantum dots. In an example, the nanoparticles are formed on a flexible substrate. In various examples, the flexible substrate is light transparent. Photovoltaic structures and apparatus for forming photovoltaic structures are disclosed.
대표청구항▼
1. A photovoltaic structure comprising: a non-conductive core;a conductive layer on the non-conductive core;a photosensitive nano-composite nanoporous nanostructure layer at least partially formed by an electrospray process enclosing the conductive layer, the photosensitive layer containing TiO2 nan
1. A photovoltaic structure comprising: a non-conductive core;a conductive layer on the non-conductive core;a photosensitive nano-composite nanoporous nanostructure layer at least partially formed by an electrospray process enclosing the conductive layer, the photosensitive layer containing TiO2 nanoparticles, quantum dots, and a photoactive pigment dye, wherein the quantum dots comprise at least one of ZnSe, CdSe/Zn, CdTe/ZnS, PbS, and PbSe and the quantum dots include a plurality of different sizes;an electrolyte in sol-gel on the photosensitive layer;a catalyst encapsulating the sol-gel electrolyte;a transparent conductor surrounding the catalyst; anda transparent insulator surrounding the transparent conductor. 2. The photovoltaic structure of claim 1, wherein the catalyst includes at least one of carbon, carbon black particles, platinum, and palladium. 3. The photovoltaic structure of claim 1, wherein the nanostructure layer is to convert photons having energies ranging from about 0.5 eV to about 3.45 eV to electron-hole pairs. 4. The photovoltaic structure of claim 1, wherein the quantum dots include a diameter ranging from about 2 nm to about 10 nm. 5. The photovoltaic structure of claim 1, wherein the nanostructure layer includes a substantially homogeneous mixture of two or more quantum dots materials. 6. The photovoltaic structure of claim 1, wherein the nanostructure layer comprises a plurality of concentric layers, each of the concentric layers including at least one of a different quantum dot material and a different quantum dot size. 7. The photovoltaic structure of claim 1, wherein the electrolyte includes an ionic redox electrolyte. 8. The photovoltaic structure of claim 1, wherein the light absorptive coating includes an anthocyanin. 9. The photovoltaic structure of claim 1, wherein the substantially transparent conductor is a material comprising at least one of a conductive polymer, conductive carbon nanotubes, and a conductive metal oxide. 10. The photovoltaic structure of claim 1, wherein the photosensitive nanostructure layer includes a bimodal distribution of TiO2 nanoparticles and quantum dots. 11. A photovoltaic structure comprising: a first conductive layer on a first conductive layer;a second conductive layer spaced from the first conductive layer;a photosensitive nano-composite nanoporous region quantum dot located between the first conductive layer and the second conductive layer, wherein the photosensitive quantum dot region includes TiO2 nanoparticles and quantum dots having a diameter size gradient in a direction normal to a major surface of the first conductive layer, wherein the nano-composite nanoporous region encloses the first conductive layer, includes a photoactive pigment dye, wherein the quantum dots comprise at least one of ZnSe, CdSe/Zn, CdTe/ZnS, PbS, and PbSe;a catalyst encapsulating the second conductive layer;a transparent conductor surrounding the catalyst; anda transparent insulator surrounding the transparent conductor. 12. The photovoltaic structure of claim 11, wherein the quantum dots are coated with TiO2 particles. 13. The photovoltaic structure of claim 11, wherein the diameters of the quantum dots located nearest the first conductive layer are less than the diameters of the quantum dots located nearest the second conductive layer. 14. The photovoltaic structure of claim 11, wherein the first conductive layer includes indium tin oxide. 15. The photovoltaic structure of claim 11, wherein the first conductive layer is a composite including a flexible plastic material and at least one conductive agent. 16. The photovoltaic structure of claim 15, wherein the conductive agent includes a conductive ink. 17. The photovoltaic structure of claim 11, wherein the first conductive layer includes a flexible polymeric film. 18. The photovoltaic structure of claim 17, wherein the flexible polymeric film is in contact with an inorganic coating. 19. The photovoltaic structure of claim 11, further comprising a transparent flexible plastic substrate adjoining the first conductive layer. 20. The photovoltaic structure of claim 11, further comprising a transparent moisture barrier adjoining the first conductive layer. 21. The photovoltaic structure of claim 11, further comprising a polymer sol-gel electrolyte in contact with the photosensitive region. 22. The photovoltaic structure of claim 11, wherein the sol-gel electrolyte includes redox I−/I3 electrolytes. 23. The photovoltaic structure of claim 11, wherein a thickness of the photosensitive region is from about 8 microns to about 10 microns in thickness. 24. The photovoltaic structure of claim 11, wherein the photosensitive quantum dot region is configured to absorb light from about 360 nm to about 2500 nm. 25. The photovoltaic structure of claim 11, further comprising a counter-electrode catalysts that includes black carbon. 26. The photovoltaic structure of claim 25, wherein the quantum dots and the TiO2 nanoparticles have a bimodal distribution in the photosensitive quantum dot region. 27. A photovoltaic structure the photovoltaic structure comprising: an electrically charged core including at least a conductive portion; anda photosensitive electrically charged nanoporous nanostructure layer coating the core, wherein the at least partially formed by an electrospray process charged core and nanostructure layer charge are of opposite polarity and the nanostructure layer includes quantum dots, TiO2 nanoparticles, a photoactive pigment die wherein the quantum dots comprise at least one of ZnSe, CdSe/Zn, CdTe/ZnS, PbS, and PbSe and the quantum dots include a plurality of different sizes;a catalyst encapsulating the nanoporous nanostructure layer;a transparent conductor surrounding the catalyst; anda transparent insulator surrounding the transparent conductor. 28. A photovoltaic structure the photovoltaic structure comprising: a first conductive layer;a second conductive layer spaced from the first conductive layer; anda photosensitive electrically charged nanoporous nanostructure layer located between the first conductive layer and the second conductive layer at least partially formed by an electrospray process, wherein the nanostructure layer includes quantum dots, TiO2 nanoparticles, a photoactive pigment die wherein the quantum dots comprise at least one of ZnSe, CdSe/Zn, CdTe/ZnS, PbS, and PbSe, and wherein the quantum dots include a diameter size gradient in a direction normal to a major surface of the first conductive layer;a catalyst encapsulating the second conductive layer;a transparent conductor surrounding the catalyst; anda transparent insulator surrounding the transparent conductor.
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