Nanostructure perovskite battery at depression of positive electrode optical grating and preparation method thereof
A perovskite battery and nanostructure technology, applied in photovoltaic power generation, circuits, electrical components, etc., to achieve the effects of reducing series resistance, saving costs, and improving absorption
Active Publication Date: 2019-04-02
JIMEI UNIV
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[0035] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0036] Such as figure 1 As shown, the perovskite battery with the nanostructure in the depression of the anode grating includes glass 10, on which an anode layer 1, a hole transport layer 2, an active layer 3, an electron transport layer 4 and a cathode layer 5 are sequentially arranged, The anode layer 1 is a transparent smoked tin oxide (ITO) film or aluminum zinc oxide (AZO) film, and the cathode layer 5 is a metal film made of gold (Au), silver (Ag), aluminum (Al) and other materials. The anode layer 1 is provided with a metal grating 6 periodically recessed in the anode layer 1, and an insulating nanostructure 7 is provided on the surface of the metal grating 6 recesses, and the material of the insulating nanostructure 7 is silicon dioxide (SiO2), silicon (Si ) or PMMA, the shape is hemispherical or semi-ellipsoid, and the diameter is bet...
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Abstract
The invention discloses a nanostructure perovskite battery at the depression of a positive electrode optical grating. The nanostructure perovskite battery comprises glass, and the glass is provided with a positive electrode layer, a hole transport layer, an active layer, an electron transport layer and a negative electrode layer. A metal optical gating periodically depressed to the positive electrode layer is arranged on the positive electrode layer, and an insulating nanostructure is arranged on the surface of the depression of the metal optical grating. The invention also discloses a preparation method of the nanostructure perovskite battery at the depression of the positive electrode optical grating. The nanostructure perovskite battery has the beneficial effects that the nanostructureperovskite battery at the depression of the positive electrode optical grating is provided, the light absorption of a solar battery for incident light with the wavelength in the range of 500 to 800 nmis improved by using a metal nanometer optical grating and insulating nanoparticle composite structure, and then the photoelectric conversion efficiency of the solar battery is improved. The composite efficiency of carriers at the position of a positive electrode interface is reduced, the collection efficiency of the carriers is improved, and the series resistance of the battery is reduced. The metal nanometer optical grating and insulating nanostructure can be obtained by using a photoetching process, so that the cost is saved.
Description
technical field [0001] The invention relates to the technical field of perovskite solar cells, in particular to a perovskite cell with a nanostructure in the recess of an anode grating and a preparation method thereof. Background technique [0002] Active layer materials for perovskite solar cells (CH 3 NH 3 wxya 3 , X = Cl, Br, I) has high light absorption efficiency and long carrier diffusion length, and is considered to be the most promising thin-film solar cell technology in the future. At present, the photoelectric conversion efficiency of perovskite solar cells can reach up to 22%. The intrinsic absorption spectrum of the perovskite material is below the wavelength of 800nm, and the wavelength of less than 500nm is the strong absorption range of the perovskite material. The perovskite material has a relatively low absorption efficiency for red and yellow light with a wavelength of 600-800nm. [0003] In the prior art, nanoparticles are usually introduced to enhance...
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IPC IPC(8): H01L51/44H01L51/48
CPCH10K71/233H10K30/87H10K30/80H10K30/82Y02E10/549
Inventor 相春平陈丽萍徐初杰
Owner JIMEI UNIV