Surface Transfer Doping of Semiconductors

by Jürgen Ristein Science, 25 Aug 2006 "Doping" of semiconductors -- that is, the local manipulation of their conductivity -- is a key technology for electronic devices. Without doping, for example, a gallium nitride sample larger than the White House would be needed to host a single mobile charge at room temperature; for diamond, not even the volume of the globe would be sufficient. It is only through doping that semiconductors become useful electronic materials. Recent studies have revealed an unconventional way to achieve doping through surface engineering. Read more