A kind of translucent perovskite solar cell and its preparation method

A solar cell and perovskite technology, which is applied in semiconductor/solid-state device manufacturing, circuits, electrical components, etc., can solve the problems that hinder the development and utilization of translucent perovskite solar cells, and achieve transparency easily, high processing efficiency, and reduce Active area effect

Active Publication Date: 2021-01-19
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, both methods face the problem of transparent conductive top electrodes. It is a big problem to prepare transparent conductive top electrodes on perovskite films, which hinders the further development and utilization of translucent perovskite solar cells.

Method used

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  • A kind of translucent perovskite solar cell and its preparation method
  • A kind of translucent perovskite solar cell and its preparation method
  • A kind of translucent perovskite solar cell and its preparation method

Examples

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Comparison scheme
Effect test

Embodiment 1

[0026] like figure 1 As shown, a preparation method of a translucent perovskite solar cell includes the following steps:

[0027] (1) Use an ultrafast laser to scribe a 5cm*5cm glass substrate containing an ITO transparent conductive layer, and cut the transparent conductive layer (P1). The tangent spacing is 0.5mm, and the width of a single small battery is 0.5mm. The tangential processing parameters are: picosecond mode, the repetition frequency is 200k Hz, the laser power is 15W, the scanning speed of the galvanometer is 1000mm / s, and the width of the etching line is 30μm; after the cutting is completed, the substrate is cleaned;

[0028] (2) Scratch a layer of tin oxide electron transport layer by Slot-die on the cleaned substrate;

[0029] (3) spin-coating perovskite and spiro-OMeTAD hole transport layers on the tin oxide electron transport layer;

[0030] (4) The functional layers (electron transport layer, perovskite light absorption layer and hole transport layer) ar...

Embodiment 2

[0036] like figure 1 As shown, a preparation method of a translucent perovskite solar cell includes the following steps:

[0037] (1) Use an ultrafast laser to scribe a 10cm*10cm glass substrate containing an FTO transparent conductive layer, and cut the transparent conductive layer (P1). The tangential processing parameters are: picosecond mode, the repetition frequency is 500k Hz, the laser power is 14W, the scanning speed of the galvanometer is 900mm / s, and the width of the etching line is 30μm; after the cutting is completed, the substrate is cleaned;

[0038] (2) prepare a layer of tin oxide electron transport layer by chemical bath deposition on the cleaned substrate;

[0039] (3) spin-coating the perovskite light absorption layer and the spiro-OMeTAD hole transport layer on the tin oxide electron transport layer;

[0040] (4) The functional layers (electron transport layer, perovskite light absorption layer and hole transport layer) are cut by ultrafast laser, but the...

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Abstract

The invention belongs to the field of perovskite solar cells, and in particular relates to a translucent perovskite solar cell and a preparation method thereof. The preparation method comprises: using an ultrafast laser to peel off the transparent conductive layer (P1) on the tangent line; Deposit functional layers sequentially on the transparent conductive layer, use ultrafast laser to peel off the functional layer on the tangent line without damaging the transparent conductive layer (P2); deposit metal electrodes on the clean functional layer, use ultrafast laser to peel off the metal electrode layer on the tangent line and the functional layer without damaging the transparent conductive layer (P3), the positions of P1, P2 and P3 need to be staggered from each other; after the tangent is completed, the semi-transparent perovskite solar cell is prepared. The invention uses laser to process the semi-transparent perovskite solar cell, peels off the active part of the cell by laser, reduces the active area of ​​the component, and can significantly increase the transmittance of the component in the visible light range.

Description

technical field [0001] The invention belongs to the field of perovskite solar cells, in particular to a translucent perovskite solar cell and a preparation method thereof. Background technique [0002] Translucent cells can be used as building photovoltaic glass, which has a decorative effect while collecting energy, and realizes photovoltaic building integration, which has strong practical value. The commonly used crystalline silicon solar cell materials are difficult to achieve transparent or translucent effects, and perovskite solar cells have become a hot spot for people to develop translucent cells because of their adjustable film layers, low cost and high efficiency. [0003] At present, the method to achieve translucency of perovskite solar cells is mainly to control the light absorption layer of perovskite, and to improve the light transmittance of the device by reducing the thickness of perovskite and reducing the film coverage. The methods of reducing the thicknes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/42H01L51/48H01L27/30
CPCH10K39/10H10K71/80H10K30/00Y02E10/549
Inventor 程一兵李天慧黄福志
Owner WUHAN UNIV OF TECH
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