@article {5635, title = {Optical and Microstructural Investigations of Porous Silicon Coated with a-Si: H Using PECVD Technique}, journal = {Materials Science Forum}, volume = {587}, year = {2008}, note = {n/a}, pages = {308-312}, abstract = {n/a}, isbn = {0878493735}, author = {Aguas, Hugo and Ferreira, Isabel and Martins, Rodrigo and Fortunato, Elvira and Prabakaran, R. and Pereira, Lu{\'I}s and Elangovan, E.} }