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Tetraphenyl ethylene polymer hole transport layer-based perovskite solar cell

A technology of hole transport layer and solar cell, which is applied in the direction of circuits, photovoltaic power generation, electrical components, etc., can solve the problems that restrict the commercial production of perovskite solar cell efficiency, low carrier mobility, and unstable properties. Achieve high yield, simple synthesis steps and stable properties

Active Publication Date: 2016-01-13
西安纳智光研科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in perovskite solar cells, Spiro-OMeTAD, the most widely used hole transport material, is complex to synthesize, has low carrier mobility, and the market price is more than ten times that of gold, and its properties are unstable, requiring high energy consumption such as high vacuum. processing, which seriously restricts the further improvement of the efficiency of perovskite solar cells and the realization of commercial production, which is a very important problem facing the field of perovskite solar cells

Method used

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  • Tetraphenyl ethylene polymer hole transport layer-based perovskite solar cell
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  • Tetraphenyl ethylene polymer hole transport layer-based perovskite solar cell

Examples

Experimental program
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Effect test

Embodiment 1

[0055] Example 1, making a solar cell with a TPE-TPA hole transport layer thickness of 80 nm.

[0056] Step 1, cleaning the substrate substrate.

[0057] The 1.9mm glass substrate with fluorine-doped tin oxide FTO was ultrasonically cleaned in deionized water, acetone, absolute ethanol and deionized water for 15 minutes, and dried with a nitrogen gun after cleaning.

[0058] Step 2, depositing c-TiO on the cleaned substrate 2 electron transport layer.

[0059] 2a) Preparation of precursor solution:

[0060] Take 1.464mL of 75% mass fraction of diisopropyl diacetylacetonate titanate TiAc solution, add 18.536mL of 1-butanol to the solution for dilution, and ultrasonicate the diluted solution for 15min to obtain 0.15M / L c-TiO 2 Precursor solution;

[0061] 2b) Spin coating c-TiO 2 Precursor solution:

[0062] Spin-coat c-TiO on the cleaned substrate 2 Precursor solution, spin-coating speed is 5000r / min, spin-coating time is 50s, and annealed on a hot stage at a temperatur...

Embodiment 2

[0080] Example 2, making a solar cell with a TPE-TPA hole transport layer thickness of 100 nm.

[0081] Step 1: Place the 1.9 mm quartz substrate containing fluorine-doped tin oxide FTO in deionized water, acetone, absolute ethanol and deionized water for 15 minutes for ultrasonic cleaning, and dry it with a nitrogen gun after cleaning.

[0082] Step 2, depositing c-TiO on the cleaned substrate 2 electron transport layer.

[0083] 2.1) Preparation of precursor solution:

[0084] The concrete realization of this step is identical with step 2a) of embodiment 1;

[0085] 2.2) Spin coating c-TiO 2 Precursor solution:

[0086] Spin-coat c-TiO on the cleaned substrate 2 The precursor solution was spin-coated at a speed of 4000r / min for 50s, and annealed on a hot stage at a temperature of 500°C for 15min to obtain c-TiO with a thickness of 90nm 2 electron transport layer.

[0087] Step 3, on c-TiO 2 CH deposition on the electron transport layer 3 NH 3 PB 3Photoactive layer...

Embodiment 3

[0101] Example 3, making a solar cell with a TPE-TPA hole transport layer thickness of 200 nm.

[0102] Step A, cleaning the substrate substrate.

[0103] The 1.9 mm glass substrate containing fluorine-doped tin oxide FTO was ultrasonically cleaned in deionized water, acetone, absolute ethanol and deionized water for 15 minutes, and dried with a nitrogen gun after cleaning.

[0104] Step B, depositing c-TiO on the cleaned substrate 2 electron transport layer.

[0105] B1) Preparation of precursor solution:

[0106] The concrete realization of this step is identical with step 2a) of embodiment 1;

[0107] B2) Spin-coating c-TiO 2 Precursor solution:

[0108] Spin-coat c-TiO on the cleaned substrate 2 solution, spin-coated at a speed of 3000r / min for 50s, and annealed on a hot stage at a temperature of 500°C for 15min to obtain c-TiO with a thickness of 100nm 2 electron transport layer.

[0109] Step C, on c-TiO 2 CH deposition on the electron transport layer 3 NH 3 P...

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Abstract

The invention discloses a tetraphenyl ethylene polymer hole transport layer-based perovskite solar cell, and mainly aims at solving the problems that an existing hole transport material is high in cost, low in carrier mobility and unstable in property. The tetraphenyl ethylene polymer hole transport layer-based perovskite solar cell comprises a substrate (1), a negative electrode (2), an electron transport layer (3), an optical active layer (4), a hole transport layer (5) and a positive electrode (6) from bottom to top, wherein a tetraphenyl-triphenylamine polymer TPE-TPA with the thickness of 80nm to 200nm is adopted by the hole transport layer (5); and the hole transport layer is prepared through a TPE-TPA precursor solution spin-coating method. According to the hole transport layer disclosed by the invention, a close contact between the optical active layer and the hole transport layer can be effectively suppressed; the carrier recombination probability at the interface is lowered; the interface characteristics are improved; the properties of the perovskite solar cell are effectively improved; and the tetraphenyl ethylene polymer hole transport layer-based perovskite solar cell can be applied to photoelectric conversion.

Description

technical field [0001] The invention belongs to the technical field of semiconductor devices, in particular to a solar cell, in particular to a perovskite solar cell and a preparation method thereof, which can be used for photoelectric conversion. Background technique [0002] At present, with the continuous growth of the world population, the continuous innovation of industry and information technology, and the increasing demand and consumption of energy in human society, the development and utilization of diversified and clean renewable energy has attracted widespread attention from all over the world. Different from traditional energy sources such as coal, oil, and natural gas, solar energy, as the most abundant energy resource in the world, has become the focus of new energy due to its clean, renewable, and inexhaustible advantages. Since solar cells can directly convert solar energy into electrical energy, the research and application of solar cells have received more a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K71/12H10K85/141H10K30/151Y02E10/549Y02P70/50
Inventor 习鹤吕玲唐诗罗莉马晓华张春福郝跃
Owner 西安纳智光研科技有限公司
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