Revolution in Solar Energy Technology? Cheap Quantum Dot Solar Paint

  • Revolution in Solar Energy Technology? Cheap Quantum Dot Solar Paint

    Researchers have reduced the preparation time of quantum dot solar cells to less than an hour by changing the form to a one-coat quantum dot solar paint.


    Titanium dioxide (TiO2) nanoparticles are coated with cadmium sulfide (CdS) or cadmium selenide (CdSe.) The composite nanoparticles, when mixed with a solvent, form a paste that can be applied as one-step paint to a transparent conducting material, which creates electricity when exposed to light.

    Although the paint form is currently about five times less efficient than the highest recorded efficiency for the multifilm form, the researchers predict that its efficiency can be improved, which could lead to a simple and economically viable way to prepare solar cells.

    The scientists responsible for the research breakthrough, Mathew P. Genovese of the University of Waterloo in Canada, with Ian V. Lightcap and Prashant V. Kamat of the Radiation Laboratory and Department of Chemistry and Biochemistry at the University of Notre Dame in Indiana, will be publishing their study in an upcoming issue of the American Chemical Society's publication Nano.

    webmasters comment:

    This is a great invention. This patent is an extension of an old Matshushita patent that used TiO2, CDS, and a carbon layer and where you could simply print your cells with the same print method used for home made t-shirt designs.

    This will make printing solar cells a lot easier. I was experimenting with the matsushita tech and exploring the field, but there was an obstacle for someone trying to build them at home, simply because it is really hard to get uniform thickness on each of the 7 layers required in the 1st method. With this new invention, you could have a "solar cartridge" for your comp. printer in no time.