Kitty Cha

Nanowires boost the efficiency of ultra low-cost, stable solar cells

By Kitty Cha / August 24, 2010

One of the ways of ensuring a sustainable solar cell industry is to make cheap and stable cells, using abundant and environmentally friendly materials. However, until now, many such solar cells, particularly those made from copper and zinc oxides, have had their performance limited by the poor collection of photo-generated charges from these materials. A…

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Better voltaics through titania

By Kitty Cha / July 14, 2010

A major advantage of solid-state dye-sensitized solar cells is that they do not suffer problems with solvent leakage and corrosion. Recent research into synthesis of the anode material, nanocrystalline TiO2, has opened up new insight into device optimization and control over properties. Steiner, Snaith and coworkers have developed a novel block-co-polymer directed synthesis of titania,…

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