Everything looks bright in the field of solar energy, poised to eventually take over (along with other renewables and hydrogen as portable fuel and energy storage method) the dirty and dangerous energy sources of the past centuries, and now even a little more: researchers from UCLA have developed a new biofilm that does not just work as solar panel but is also transparent like glass, allowing it to be implemented to windows even more aesthetically than before.
Source: Science Daily.
Ref. Chun-Chao Chen et al., Visibly Transparent Polymer Solar Cells Produced by Solution Processing. ACS Nano, 2012. Pay per view.
See also: category: solar energy in this blog and in my old (closed) blog for a small collection of news on how much has solar energy advanced just in the last few years.