Hole transmission material and manufacturing method for perovskite solar energy cell containing hole transmission material

A hole transport material, solar cell technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of affecting the qualification rate of perovskite solar cells, easily destroying the perovskite crystal structure, and complex production processes. The preparation steps are simple, the hole transport performance is improved, and the production cost is reduced.

Active Publication Date: 2016-07-20
NINGBO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is an organic-inorganic compound, the production process is complex, the price is high, and acetonitrile is used as a solvent, and acetonitrile is easy to destroy the crystal structure of perovskite, which affects the pass rate of perovskite solar cells

Method used

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  • Hole transmission material and manufacturing method for perovskite solar energy cell containing hole transmission material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The hole transport material of the present embodiment comprises the following components: a mixed solution of chlorobenzene and dipropyl sulfide, spiro-MeOTAD, CuI, tetrabutylpyridine and lithium trifluoromethanesulfonimide; spiro-MeOTAD, The molar ratio of CuI, tetrabutylpyridine, and lithium bistrifluoromethanesulfonimide was 1:0.1:0.8:0.3, and the concentration of spiro-MeOTAD was 0.5moL / L.

[0025] The preparation method of the perovskite solar cell comprising the above-mentioned hole transport material comprises the following steps:

[0026] (1) Preparation of hole transport materials

[0027] Dissolve spiro-MeOTAD in the mixed solution of chlorobenzene and dipropyl sulfide, the volume ratio of chlorobenzene and dipropyl sulfide is 1:0.04, to obtain a solution with spiro-MeOTAD concentration of 0.5, add Tetrabutylpyridine 0.8 times the number of moles of spiro-MeOTAD and lithium bistrifluoromethanesulfonylimide 0.3 times the number of moles of spiro-MeOTAD, stirre...

Embodiment 2

[0033] The hole transport material of the present embodiment comprises the following components: a mixed solution of chlorobenzene and dipropyl sulfide, spiro-MeOTAD, CuI, tetrabutylpyridine and lithium trifluoromethanesulfonimide; spiro-MeOTAD, The molar ratio of CuI, tetrabutylpyridine, and lithium bistrifluoromethanesulfonimide was 1:0.15:0.8:0.3, and the concentration of spiro-MeOTAD was 1.0moL / L.

[0034] The preparation method of the perovskite solar cell comprising the above-mentioned hole transport material comprises the following steps:

[0035] (1) Preparation of hole transport materials

[0036] Spiro-MeOTAD is dissolved in the mixed solution of chlorobenzene and dipropyl sulfide, the volume ratio of chlorobenzene and dipropyl sulfide is 1:0.04, to obtain the solution of spiro-MeOTAD concentration is 1.0moL / L, to this Add 0.8 times the tetrabutylpyridine of spiro-MeOTAD molar number and 0.3 times of spiro-MeOTAD molar lithium bistrifluoromethanesulfonylimide in the...

Embodiment 3

[0042] The hole transport material of the present embodiment comprises the following components: a mixed solution of chlorobenzene and dipropyl sulfide, spiro-MeOTAD, CuI, tetrabutylpyridine and lithium trifluoromethanesulfonimide; spiro-MeOTAD, The molar ratio of CuI, tetrabutylpyridine, and lithium bistrifluoromethanesulfonimide was 1:0.2:0.8:0.3, and the concentration of spiro-MeOTAD was 1.0moL / L.

[0043] The preparation method of the perovskite solar cell comprising the above-mentioned hole transport material comprises the following steps:

[0044] (1) Preparation of hole transport materials

[0045] Spiro-MeOTAD is dissolved in the mixed solution of chlorobenzene and dipropyl sulfide, the volume ratio of chlorobenzene and dipropyl sulfide is 1:0.06, to obtain the solution of spiro-MeOTAD concentration is 1.0moL / L, to this Add 0.8 times the tetrabutylpyridine of spiro-MeOTAD molar number and 0.3 times of spiro-MeOTAD molar lithium bistrifluoromethanesulfonylimide in the ...

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Abstract

The invention relates to a hole transmission material and a manufacturing method for a perovskite solar energy cell containing the hole transmission material. The hole transmission material comprises a solvent, a spiro-MeOTAD, an inorganic oxidizing agent containing cuprous ions, tetrabutyl pyridine and lithium trifluoromethane sulfonamide, wherein the mole ratio of the spiro-MeOTAD, the inorganic oxidizing agent, the tetrabutyl pyridine and the lithium trifluoromethane sulfonamide is 1:(0.1-4):(0.7-0.9):(0.2-0.4). The hole transmission material employs inorganic micromolecules as an additive of the hole transmission material spiro-MeOTAD of the perovskite solar energy cell, the inorganic oxidizing agent has relatively good oxidation effect on the spiro-MeOTA, so hole transmission performance of the spiro-MeOTA is improved, the inorganic oxidizing agent has relatively low price, so manufacturing cost of the hole transmission material can be greatly reduced, moreover, manufacturing steps of the perovskite solar energy cell are simple, no acetonitrile is taken as a solvent in the manufacturing process, no damage to the perovskite crystal structure occurs, and the qualified rate of cells is improved to a great degree.

Description

technical field [0001] The invention relates to the technical field of perovskite solar cells, specifically a perovskite solar hole transport material, and also relates to a method for preparing a perovskite solar cell comprising the hole transport material. Background technique [0002] Perovskite solar cells have been highly valued by scientific research and industry due to their low cost, good performance, and simple preparation. Perovskite materials have been used in solar cells since 2009. Up to now, the efficiency has reached nearly 20%, which is 5 times that of the initial cell efficiency. It is far ahead of new thin-film solar cells such as dye-sensitized solar cells and organic solar cells. After all, perovskite solar cells are low-cost thin-film solar cells that have developed very rapidly in the past three years. [0003] The core of the perovskite solar cell structure is the perovskite crystal form ABX 3 organometallic halide light-absorbing materials. In this...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/46H01L51/48
CPCH10K71/15H10K85/10H10K85/141Y02E10/549Y02P70/50
Inventor 王鹏张京诸跃进黄孝坤王利明曾昭兵陈人杰张英
Owner NINGBO UNIV
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