Low-cost, efficient and stable organic-inorganic hybrid perovskite solar cell and preparation method and application thereof

A technology of solar cells and perovskites, which is applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of expensive lead iodide and achieve excellent stability, convenient operation, and compact and smooth appearance

Pending Publication Date: 2022-04-01
NANJING UNIV OF TECH
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Problems solved by technology

[0005] The technical problem solved by the present invention is: aiming at the high price of lead iodide used in methylamine lead iodine perovskite, a low-cost, high-efficiency and stable organic-inorganic hybrid perovskite solar cell and its preparation method and application are proposed, Specifically include the following steps:

Method used

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  • Low-cost, efficient and stable organic-inorganic hybrid perovskite solar cell and preparation method and application thereof
  • Low-cost, efficient and stable organic-inorganic hybrid perovskite solar cell and preparation method and application thereof
  • Low-cost, efficient and stable organic-inorganic hybrid perovskite solar cell and preparation method and application thereof

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Embodiment 1

[0050] This example is a low-cost, efficient and stable organic-inorganic hybrid perovskite solar cell of the present invention, in order to fully understand the present invention, the experimental humidity condition is greater than 80%. It mainly includes the following steps:

[0051] Step 1) Take 90mL of methylamine and place it in a round bottom flask and stir it at zero degrees Celsius.

[0052] Step 2) Place 27.6 mL of acetic acid solution in a 50 mL beaker.

[0053] Step 3) Slowly add the solution in step 2) to the solution in step 1), stir at zero degrees Celsius for 2 hours, and then spin evaporate to obtain methylamine acetate.

[0054] Step 4) Clean the ITO conductive glass, the sequence is ethanol, cleaning agent, ultrapure water, acetone, ultrasonic in ethanol for 15 minutes each, blow dry with nitrogen, and dry in an oven at 100°C for 30 minutes to obtain a clean ITO substrate.

[0055] Step 5) Weigh 172.2mg of lead carbonate and 308.4mg of methylammonium iodide...

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Abstract

The invention relates to a low-cost, efficient and stable organic-inorganic hybrid methylamine lead iodine perovskite solar cell and a preparation method and application thereof, and belongs to the field of optoelectronic materials and devices. PbCO3 with the concentration of 200-500 mg / mL is dissolved in an acetic acid methylamine solvent, the solution is spin-coated on an ITO substrate deposited with SnO2 by using a heating spin-coating method, a compact, uniform and stable perovskite thin film is formed through annealing, and the whole process is completely operated in air. And then spin-coating a Spiro-OMeTAD hole transport layer on the thin film, and evaporating a modification layer MoO3 and a metal electrode by using a vacuum evaporation technology to complete the preparation of the device.

Description

technical field [0001] The present invention relates to a preparation method based on low-cost, high-efficiency and stable organic-inorganic hybrid perovskite solar cells, especially a method for dissolving lead carbonate by using ionic liquid to replace expensive lead iodide to prepare methylamino perovskite The utility model relates to a solar cell, which belongs to the field of optoelectronic materials and technology. Background technique [0002] When non-renewable energy sources such as natural gas, coal, and oil are running out frequently, and energy issues have increasingly become a bottleneck restricting the development of the international society and economy, more and more countries have begun to implement the "Sunshine Plan" to develop solar energy resources and seek new kinetic energy for economic development. As an inexhaustible clean energy, solar energy is gradually replacing traditional fossil energy. As one of the main ways to utilize solar energy, solar ce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/48H01L51/42
CPCY02E10/549
Inventor 陈永华陈越胡健飞夏英东黄维
Owner NANJING UNIV OF TECH
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