Nanoparticle layer solar cell

12139,418

18/796384

August 07, 2024

An electron transport includes a metal co-doped zinc oxide compound having a formula MnxCo0.015Zn1-xO, wherein x has a value in a range of 0.001 to 0.014. The electron transport material of the present disclosure may be used in a perovskite solar cell.

KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Dhahran, SA)

KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Dhahran, SA)

1. A nanoparticle layer solar cell, comprising: an electrode layer, a hole transport layer, a perovskite layer, a mesoporous layer, an electron transport layer, and a metal oxide layer; wherein the electrode layer contacts the hole transport layer, and the perovskite layer is between the hole transport layer and the electron transport layer; wherein the electron transport layer comprises an electron transport material; wherein the electron transport material comprises: a metal co-doped zinc oxide compound having a formula Mn x Co 0.015 Zn 1-x O, wherein x has a value in a range of 0.001 to 0.014, and wherein the metal co-doped zinc oxide compound is in the form of hexagonal disc shape nanoparticles having an average particle diameter of 0.5 to 2 μm.

2. The nanoparticle layer solar cell of claim 1 , wherein the metal co-doped zinc oxide compound is made by a process comprising: dissolving a zinc salt to form an aqueous mixture; adding a manganese salt, a cobalt salt, and a sodium hydroxide solution to the aqueous mixture; reacting the aqueous mixture in an autoclave to form nanoparticles; washing the nanoparticles and isolating the nanoparticles and drying the nanoparticles; then annealing the nanoparticles in a furnace to form the metal co-doped zinc oxide compound.

3. The nanoparticle layer solar cell of claim 2 , wherein the process of making the metal co-doped zinc oxide compound the autoclave is at a temperature of 150 to 200° C. during the reacting for a time of 2 to 6 hours.

4. The nanoparticle layer solar cell of claim 2 , wherein the process of making the metal co-doped zinc oxide compound the furnace is at a temperature of 250 to 300° C. during the annealing for a time of 1 to 4 hours.

5. The nanoparticle layer solar cell of claim 1 , wherein the electron transport layer is an electron transport film comprising the electron transport material, wherein the electron transport film is made by a process comprising: dispersing the metal co-doped zinc oxide compound in an organic solvent to form a product-containing suspension; and depositing the product-containing suspension on a glass substrate.

6. The nanoparticle layer solar cell of claim 1 , wherein the metal co-doped zinc oxide compound has an inter-planar spacing of 2.460 to 2.480 Å.

7. The nanoparticle layer solar cell of claim 1 , wherein the metal co-doped zinc oxide compound has an atomic packing fraction of 0.51650 to 0.51950.

8. The nanoparticle layer solar cell of claim 1 , wherein the metal co-doped zinc oxide compound has a unit cell volume of 47.120 to 47.360 Å 3 .

9. The nanoparticle layer solar cell of claim 1 , wherein the metal co-doped zinc oxide compound has a lattice strain of 2.50×10 −3 to 3.15×10 −3 .

10. The nanoparticle layer solar cell of claim 1 , wherein the metal co-doped zinc oxide compound has a dislocation density of 5.4000×10 −6 to 7.6000×10 −6 1/Å 2 .

11. The nanoparticle layer solar cell of claim 1 , wherein the metal co-doped zinc oxide compound has a bandgap (Eg) with a value of 3.00 to 3.80 eV.

12. The nanoparticle layer solar cell of claim 1 , wherein x is 0.008, and the metal co-doped zinc oxide compound has a bandgap (Eg) with a value of 3.55 to 3.75 eV.

13. The nanoparticle layer solar cell of claim 1 , wherein the metal co-doped zinc oxide compound has an absorption coefficient with a value of 1.00×10 4 to 8.50×10 4 cm −1 at a wavelength value of 400 nm.

14. The nanoparticle layer solar cell of claim 1 , wherein x is 0.008, and the metal co-doped zinc oxide compound has an absorption coefficient with a value of 4.50×10 4 to 5.00×10 4 cm −1 at a wavelength value of 400 nm.

15. The nanoparticle layer solar cell of claim 1 , wherein the metal co-doped zinc oxide compound has a refractive index with a value of 1.350 to 1.500 at a wavelength of 600 nm.

16. The nanoparticle layer solar cell of claim 1 , wherein x is 0.008, the metal co-doped zinc oxide compound has a refractive index with a value of 1.420 to 1.435 at a wavelength of 600 nm.

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