Method for preparing copper indium sulfide photoelectric thin film from copper chloride
A photoelectric thin film, copper indium sulfur technology, applied in the manufacture of circuits, electrical components, final products, etc., can solve the problems of high preparation costs and complicated process routes, achieve low production costs, low requirements for equipment, and realize large-scale production The effect of industrial production
Inactive Publication Date: 2016-09-07
SHANDONG JIANZHU UNIV
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Problems solved by technology
Since CuInS 2 The cost of raw materials is low, so it is a very promising solar cell material, but the existing process route is complicated and the preparation cost is high, so it is also necessary to explore a low-cost preparation process
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0032] a. Cleaning of the glass substrate: the glass substrate is cleaned as described above, and the size of the substrate is 20mm×20mm.
[0033] b. 1.13 parts of CuCl 2 2H 2 O, 2.55 In(NO 3 ) 3 4.5H 2 O and 1.0 CH 3 CSNH 2 Put into 13.3 parts of ethanol and mix evenly, and use ultrasonic vibration for more than 30 minutes to make the substances in the solution mix evenly.
[0034] c. Drop the above solution onto the glass substrate placed on the homogenizer, start the homogenizer, make the homogenizer rotate at 300 rpm for 5 seconds, and rotate at 2150 rpm for 15 seconds, so that the dripped solution is coated After uniformity, after the substrate is dried, the above-mentioned solution is repeatedly dripped and spin-coated, and then dried again. This is repeated 3 to 5 times, and a precursor thin film sample with a certain thickness is obtained on the glass substrate.
[0035] d. Put the precursor thin film sample obtained by the above process into a sealable containe...
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The invention provides a method for preparing a copper indium sulfide photoelectric thin film from copper chloride and belongs to the technical field of preparation of photoelectric thin films for solar cells. The copper indium sulfide photoelectric thin film is prepared by the following steps: firstly cleaning a glass substrate; putting CuCl2.2H2O, In(NO3)3.4.5H2O and CH3CSNH2 into a solvent for mixing evenly, and obtaining a precursor thin film on the glass substrate by a spin-coating method; drying the precursor thin film, putting the precursor thin film into a sealed container with hydrazine hydrate, preventing a precursor thin film sample from being in contact with the hydrazine hydrate and enclosing the sealed container with the sample into an oven for heating and heat preservation treatment; and finally taking out the sample, soaking the sample for 24 hours and drying the sample to obtain the copper indium sulfide photoelectric thin film. High-temperature and high-vacuum conditions are not needed; and the method is low in requirements on instruments and equipment, low in production cost, high in production efficiency and easy to operate. The obtained copper indium sulfide photoelectric thin film has relatively good continuity and uniformity; and the main phase is a CuInS2 phase. By the novel technology, the component and the structure of a target product are easy to control; and a low-cost production method capable of achieving industrialization is provided for preparation of the high-performance copper indium sulfide photoelectric thin film.
Description
technical field [0001] The invention belongs to the technical field of photoelectric film preparation for solar cells, and in particular relates to a method for preparing copper indium sulfur photoelectric film from copper chloride. Background technique [0002] With the development of society and economy, fossil fuels such as coal, oil, and natural gas have been applied to all aspects of production and life. The continuous use of fossil fuels has reduced the resources on the earth. On the other hand, the continuous use of fossil fuels has also brought about environmental impacts, especially in terms of the greenhouse effect. Therefore, the development and utilization of clean and renewable energy is important for environmental protection, sustainable economic development and building a harmonious society. meaning. Photovoltaic power generation has the advantages of safety and reliability, no noise, no pollution, less constraints, low failure rate, and easy maintenance. Sol...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01L31/032H01L31/18
CPCH01L31/032H01L31/18Y02P70/50
Inventor 刘科高刘宏徐勇于刘洋石磊
Owner SHANDONG JIANZHU UNIV