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July 18 news, according to media reports, in the process of promoting solar energy to enter the international market, perovskite solar cells show great prospects. This battery uses a hole transport layer to promote the effective operation of the current exposed to sunlight. However, the organic material for making the hole transport layer is expensive and the material lacks long-term stability.
"Science" published a paper saying that a group of Chinese scientists led by Prof. Han Hongwei and Professor Michael Gratzel of the University of Technology in Lausanne, Switzerland, have developed a perovskite solar cell that does not use a hole transport layer at ambient temperature. It has a conversion efficiency of 12.8% and stability over 1000 hours under stable full light conditions. This innovative method can reduce the cost of perovskite batteries and can steadily push them into the market.
The mixed organic-inorganic lead halide lead carbonate perovskite has a strong attraction for thin-film solar optoelectronics, mainly due to their large attraction coefficients, high charge carrier mobility and very long diffusion lengths. However, these batteries also require an expensive price because the hole transport layer requires a high purity material and a complicated manufacturing process.
A team of scientists from the Michael Grätzel Center for mesoscopic materials at the Huazhong University of Science and Technology in China collaborated with the photonics and interface laboratory of the University of Technology in Lausanne, Switzerland. Directed by Prof. Michael Grätzel, he has successfully developed a method that does not require hole transport. Layer of perovskite solar cells. The solar cells showed a comparative energy conversion efficiency (12.8%) and proved to be stable in direct sunlight over 1000 hours.
Scientists make new solar cells that require the use of a drip coating method as a solution for lead iodide, an iodide, 5-ammoniumvaleric acyl iodide that passes through a porous carbon membrane. Solar cell stents are composed of double layers of titanium dioxide and zirconium dioxide, covered with a porous carbon membrane, and amino acid templating agents are used to promote perovskite nucleation and crystal growth within the pores.
In the future, perovskite solar cells can meet people's growing demand for renewable resources. This breakthrough innovation has solved a major limiting factor in the development of this cost-effective branch solar cell and paved a new path for its development.
A solvent dye is a dye soluble in organic solvents. It is usually used as a solution in an organic solvent. Solvent Dyes are used to color organic solvents, hydrocarbon fuels, waxes, lubricants, plastics, and other hydrocarbon-based non polar materials. Fuel dyes are one use of solvent dyes. Their molecules are typically non polar or little polar, and they do not undergo ionization. They are insoluble in water.
Names of solvent dyes are often generic, of the scheme [solvent ", eg. Solvent Red 197, solvent orange 107, Solvent Violet 13, solvent yellow 185, solvent blue 104, etc.
Red and yellow solvent dyes are often azo dyes, green and blue ones tend to be anthraquinone dyes.
Solvent Dyes
Solvent Dyes,Solvent Blue 97,Solvent Red 197,Solvent Violet 13
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