A method for substantially improving the photo luminescent performance of a porous semiconductor, involving the steps of providing a bulk semiconductor substrate wafer of a given conductivity, wherein the substrate wafer has a porous semiconductor layer of the same conductivity ...http://www.google.es/patents/US5834378?utm_source=gb-gplus-sharePatente US5834378 - Passivation of porous semiconductors for improved optoelectronic device performance and fabrication of light-emitting diode bases on same
Passivation of porous semiconductors for improved optoelectronic device ...