Premium
Porous silicon – what is responsible for the visible luminescence?
Author(s) -
Sailor Michael J.,
Kavanagh Karen L.
Publication year - 1992
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.19920040613
Subject(s) - luminescence , materials science , porous silicon , silicon , quantum dot , nanotechnology , porous medium , colloid , porosity , photoluminescence , chemical physics , chemical engineering , optoelectronics , composite material , physics , engineering
Size‐dependent quantum confinement effects have been invoked to explain the occurrence of vislble luminescence in porous silicon and TEM data supports the existence of crystalline Si domains which have dimensions small enough that one could expect such phenomena. However, is this the whole story? Various proposed explanations are discussed, and the recent observations of luminenscence in Si colloidal suspensions examined.