In-situ prepared substrate, dense layer and porous layer integrated perovskite solar cell and method thereof

A solar cell and in-situ preparation technology, applied in the field of solar cells, can solve the problems of high price, complex preparation process, and limited efficiency, and achieve the effect of low cost, simple cell structure, and optimized structure

Active Publication Date: 2017-08-25
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

FTO conductive glass, TiO 2 Dense layer, TiO 2 The cost of electron transport layers such as porous layers is expensive, and the preparation process is complicated, which limits the industrial development of perovskite solar cells
[0005] In terms of solving the expensive substrate, some researchers have carried out the following work. For example, Fudan University has prepared a linear perovskite solar cell. They have prepared a perovskite solar cell on stainless steel wire and titanium wire, which can be woven into clot

Method used

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  • In-situ prepared substrate, dense layer and porous layer integrated perovskite solar cell and method thereof
  • In-situ prepared substrate, dense layer and porous layer integrated perovskite solar cell and method thereof
  • In-situ prepared substrate, dense layer and porous layer integrated perovskite solar cell and method thereof

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Embodiment 1

[0039] Take the metal base and cut the base into 2*2cm 2 Sand the rectangle with 3000 mesh, 5000 mesh, and 7000 mesh sandpaper for several hours in order to smooth the surface and remove oxides on the metal surface. Clean the metal substrate sequentially with acetone, isopropanol, ethanol, and deionized water for 10-30 minutes in a washing tank, then take out the substrate and dry it with nitrogen gas for storage. Prepared surface topography see figure 2 . To prepare the electron transport layer with a porous structure, the substrate needs to be placed in 1-5M sulfuric acid, etched at 30-90° C. for 1-3 hours, rinsed and dried, and then used. Sinter the etched substrate in a muffle furnace at 300-600°C for 1-5 hours, and cool down naturally until the substrate cools down. The surface electron microscope of the formed porous morphology can be seen image 3 . Sand the edge of the substrate with sandpaper to make a certain edge for electrode testing. In this way, the integra...

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Abstract

The invention discloses an in-situ prepared substrate, a dense layer and a porous layer integrated perovskite solar cell and a method thereof, and belongs to the technical field of solar cells. A layer of porous morphology is formed on a metal substrate by chemical etching, a base electron transport layer integrated electrode is formed by heating and oxidizing, then a perovskite layer and a hole transport layer are deposited in turn, and finally thin gold is vapor-deposited as an electrode. The perovskite solar cell can have the photoelectric conversion efficiency of 9.32%, the open circuit voltage is 0.89V, the short circuit current density is 18.11mA/cm2, and the filling factor is 0.58. The perovskite solar cell of the structure uses the cheap metal substrate as the electrode, the cell preparation process is simplified while the cell cost is reduced, and commercialization of the perovskite solar cell is facilitated.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and relates to an in-situ preparation substrate, a dense layer and a porous layer integrated perovskite solar cell and a method thereof. Background technique [0002] At present, the energy problem is still one of the problems restricting social development. Environmental pollution and resource shortage are the current problems faced by human beings. Data show that 80%-85% of human energy supply currently comes from traditional fossil fuels. Renewable energy has become the direction of future energy development because of its sustainability, cleanliness and environmental protection, and has attracted widespread attention. Among many clean energy sources such as hydrogen energy, wind energy, and tidal energy, solar energy is considered to be one of the most important new energy sources today because of its advantages such as abundant reserves and no geographical restrictions. [0003] Photo...

Claims

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Application Information

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IPC IPC(8): H01L51/00H01L51/42H01L51/44H01L51/48
CPCH10K71/12H10K77/10H10K30/451H10K30/81Y02E10/549
Inventor 高立国杨树章赵而玲郭静马廷丽
Owner DALIAN UNIV OF TECH
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