Solar cells that have pyramid-shaped electrodes absorb much more incoming sunlight than those with traditional, flat electrodes. This is the new result from a team of researchers at the University of Toronto in Canada who have made thin-film “hierarchically structured” devices that boast a power conversion efficiency of 9.2%. The new cells could find use in optoelectronic and photovoltaic devices based on so-called charge-extraction limited materials, such as semiconducting colloidal quantum dots and organic absorbers…….
http://nanotechweb.org/cws/article/tech/59810