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Perovskite solar cell containing hydrophilic electrode modification layer and preparation method

A technology of electrode modification layer and solar cell, which is applied in the direction of circuits, photovoltaic power generation, electrical components, etc., can solve the problems of poor device stability and fast attenuation speed, achieve improved stability, improve light stability, increase photocurrent and photoelectricity The effect of conversion efficiency

Active Publication Date: 2017-02-15
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims at the problem that the perovskite solar cells in the prior art are placed in the air, the long-term stability of the device is poor, the attenuation speed is fast, and the commercial application cannot be effectively carried out.

Method used

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  • Perovskite solar cell containing hydrophilic electrode modification layer and preparation method

Examples

Experimental program
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Embodiment 1

[0040] A conventional perovskite solar cell device (reference device)

[0041] like figure 1 A schematic diagram of the device structure of a perovskite solar cell with a traditional structure without a hydrophobic electrode modification layer is shown, from bottom to top are counter electrode gold (Au), hole transport layer (Spiro-OMeTAD), calcium Titanium active layer (CH 3 NH 3 PB 3 ), electron transport layer (Nb-TiO 2 ) and FTO conductive glass substrate. The hole transport layer has a thickness of 100-300nm, the perovskite active layer has a thickness of 300-600nm, the electron transport layer has a thickness of 30-50nm, and the FTO transparent conductive substrate has a thickness of 400-800nm. Its preparation process is as follows:

[0042] (1) Preparation of a transparent conductive glass substrate: In this embodiment, a commercial FTO transparent conductive substrate is used, and the average transmittance is 85%. The FTO substrate was ultrasonically cleaned wit...

Embodiment 2

[0048] Fabrication of a Perovskite Solar Cell Device Containing a Hydrophobic Electrode Modification Layer

[0049] like figure 2 A schematic diagram of the device structure of a perovskite solar cell containing a hydrophobic electrode modification layer is shown, a perovskite solar cell containing a hydrophobic electrode modification layer, from bottom to top is the counter electrode gold (Au), Hole transport layer (Spiro-OMeTAD), hydrophobic electrode modification layer (ZnPc), perovskite active layer (CH 3 NH 3 PB 3 ), electron transport layer (5% Nb-TiO 2 ) and FTO conductive glass substrate; the hydrophobic electrode modification layer is zinc phthalocyanine.

[0050] The thickness of the hole transport layer is 100-300nm, the thickness of the hydrophobic electrode modification layer is 40-100nm, the thickness of the perovskite active layer is 300-600nm, the thickness of the electron transport layer is 30-50nm, FTO transparent The conductive substrate has a thicknes...

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Abstract

The invention discloses a perovskite solar cell containing a hydrophilic electrode modification layer and preparation method, and belongs to the field of novel photovoltaic solar cells. The device structure includes a metal counter electrode (Au), a hole transport layer (Spiro-OMeTAD), a hydrophilic electrode modification layer (MPc), a perovskite active layer (CH3NH3PbI3), an electron transport layer (TiO2) and an FTO conductive glass substrate in sequence from bottom to top; and the hydrophobic electrode modification layer is a metal phthalocyanine compound, on the basis of a traditional FTO / TiO2 / CH3NH3PbI3 / spiro-OMeTAD / Au device structure, through introduction of a hydrophobic metal phthalocyanine compound thin film with no surface function group modification between a perovskite light absorption layer and the hole transport layer as the electrode modification layer, corrosion of water in air to a perovskite material can be effectively stopped, long-time stability and illumination stability of the perovskite solar cell device are remarkably improved, and the perovskite solar cell provided by the invention has good application prospects.

Description

technical field [0001] The invention belongs to the field of novel photovoltaic solar cells, in particular to a perovskite solar cell containing a hydrophobic electrode modification layer and a preparation method thereof. Background technique [0002] The sustainable development of future society will rely more on renewable energy. Fossil energy is the main source of energy in the current society, and the problems of serious environmental pollution and warming caused by them have attracted more and more attention and can be discussed. It is of great significance to develop renewable new energy sources to replace traditional fossil energy sources. Solar energy is inexhaustible and inexhaustible. Providing energy through a steady stream of solar-generated electricity is the best way to replace fossil fuels. The currently dominant commercial silicon solar cells have complex preparation processes, high production costs, and long energy recovery cycles, which hinder their wide...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/44H01L51/48
CPCH10K71/10H10K30/00H10K30/451H10K30/80Y02E10/549
Inventor 陈聪宋宏伟戴其林李昊龙金俊杰程禹
Owner JILIN UNIV
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