News: Energy and Environment

In the future, cars could run on fuel that started as a tree branch — part of a virtuous cycle that begins in the woods and ends with cleaner air and decreasing levels of greenhouse gases in the atmosphere.
An article in the journal ACS Applied Materials and Interfaces, describing work from Princeton CBE, was among the journal’s three most-read articles for September 2013.
In organic photovoltaic devices, the active layer must simultaneously be thin enough that the electrons and holes can easily be collected, yet thick enough to absorb much of the solar radiation landing upon it. In an article published recently in Nature Photonics, a Princeton team has come up with an ingenious solution to this conundrum.