It has come to the knowledge that an eminent group of researchers at the Center for Polymers and Organic Solids of the University of California, Santa Barbara has come out in the recent days with a discovery of the notion of the apposite utilization of plastics in the harvesting of the energy of the sun resulting into a prominent improvement, thanks to the display of general effectiveness. It has further been acknowledged, that the key persons involved in the group had been the Nobel Laureate Professor of Physics at UC Santa Barbara, Alan Heeger, who shared the working experience with Kwanghee Lee of Korea and a team of other thoroughly groomed and efficient scientists in the creation of an innovative "tandem" organic solar cell with competence greater than before.  

But what are the tandem cells? From the scientists it has been learnt that the tandem cells in general are comprised of two multilayered parts that in due process of activity work together to organize a wider range of the spectrum of solar radiation, in respect of both shorter and longer wavelengths. The multilayered device, as per the assessment of the scientists, is the equivalent of two cells in series. The authentication of each layer of the multilayer structure through the processing of the materials from solution is what promises to make the solar cells less expensive to produce. To be very precise both of Heeger and Lee have collaborated for many years in the development on solar cells and have been knowing the orientation of the other in crystal clear format. It is due to this long established coordination that the new tandem architecture discovered by them has thrown a sufficient light on the improvement of light harvesting and promises to be less expensive to produce. To the detailed analysis, the authors explain that the cells "… can be fabricated to extend over large areas by means of low-cost printing and coating technologies that can simultaneously pattern the active materials on lightweight flexible substrates." Furthermore, according to the joint statement of the authors it has been said, "Tandem solar cells, in which two solar cells with different absorption characteristics are linked to use a wider range of the solar spectrum, were fabricated with each layer processed from solution with the use of bulk heterojunction materials comprising semiconducting polymers and fullerene derivatives."

While speaking to the enquiries posed by the newsmen, Alan Heeger said,   "The result is six and a half percent efficiency."  "This is the highest level achieved for solar cells made from organic materials. I am confident that we can make additional improvements that will yield efficiencies sufficiently high for commercial products," he concluded along with the expression of his high expectation over the appropriate use of this technology to be on the market within the next three years.