Nanotechnology researchers of UC Berkeley have been successful in trapping molecules between sheets of gold and ultrafine gold tip of scanning tunneling microscope. The gold surface was heated and measured with the aid of microscopic tip. This showed that organic molecules could be used for generating electricity from heat. The research is still in the initial stages and a lot of work remains to be done in this aspect. Arun Majumdar, Professor, mechanical engineering, UC Berkeley stated: Ninety percent of the world’s electricity is generated by thermal-mechanical means and a lot of the heat is wasted. One and a half times the power that is generated is actually wasted. If everything goes as per the plan then thermoelectric devices based on the molecules could emerge as an important source of power and reduce green house gas emissions with efficient fossil use.