If anyone’s interested in more on the science behind the story, including details on how the diodes were constructed and tested, we’ve set the original research article free to access for the next four weeks; you can find it here: http://www.materialsviews.com/details/news/874437/New_Diodes_Quantum_Tunnel_Their_Way_To_Improved_Electronics.html Adrian Miller Advanced Materials

I work for the journal that published the orignal research paper behind this story, and we've set it free to access for the next few weeks; you can find it here: http://www.materialsviews.com/details/news/843529/Self-Powered_Cell_Phones_Piezoelectrics_in_Action.html Adrian Miller Advanced Materials

If anyone's interested in finding out more on the science behind this story, we've set the original research article free to access for the next few weeks; you can find it here: http://www.materialsviews.com/details/news/687441/Nanocartography__in_3D.html Adrian Miller Advanced Materials