Temperature-dependent photoluminescence of surface-engineered silicon nanocrystals.
In this work we report on temperature-dependent photoluminescence measurements (15-300 K), which have allowed probing radiative transitions and understanding of the appearance of various transitions. We further demonstrate that transitions associated with oxide in SiNCs show characteristic vibronic peaks that vary with surface characteristics. In particular we study differences and similarities between silicon nanocrystals (SiNCs) derived from porous silicon and SiNCs that were surface-treated using a radio-frequency (RF) microplasma system.
Nanotechnology &Integrated Bio-Engineering Centre-NIBEC, Ulster University, UK.
Somak
S
Mitra
Research Center for Photovoltaic Technologies, AIST, Tsukuba, 305-8568, Japan.
Vladimir
V
Švrček
Nanotechnology &Integrated Bio-Engineering Centre-NIBEC, Ulster University, UK.
Manual
M
Macias-Montero
Nanotechnology &Integrated Bio-Engineering Centre-NIBEC, Ulster University, UK.
Tamilselvan
T
Velusamy
Nanotechnology &Integrated Bio-Engineering Centre-NIBEC, Ulster University, UK.
Davide
D
Mariotti