Gated Luminescence Imaging of Silicon Nanoparticles

Silver Nanoparticles-Enhanced Luminescence Spectra of Silicon Nanocrystals

Metal-enhanced Luminescence of silicon nanocrystals (SiNCs) was determined using two different particle sizes of silver nanoparticles (AgNPs). SiNCs have been characterized by scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). It is found that the SiNCs are cryst...

In Vivo Time-gated Fluorescence Imaging with Biodegradable Luminescent Porous Silicon Nanoparticles

Fluorescence imaging is one of the most versatile and widely used visualization methods in biomedical research. However, tissue autofluorescence is a major obstacle confounding interpretation of in vivo fluorescence images. The unusually long emission lifetime (5-13 μs) of photoluminescent porous silicon nanoparticles can allow the time-gated imaging of tissues in vivo, completely eliminating s...

Luminescence of silicon crystallites

Upconversion luminescence of CdTe nanoparticles

Alan G. Joly,1 Wei Chen,2,* David E. McCready,1 Jan-Olle Malm,3 and Jan-Olov Bovin3 1Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, USA 2Nomadics, Inc., 1024 South Innovation Way, Stillwater, Oklahoma 74074, USA 3Materials Chemistry, Center for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, SE-22100, Lund, Sweden sReceived 5 July 2004; revis...

Luminescence from amorphous silicon nanostructures.

We present a model of size-dependent luminescence from a-Si:H and show that a blueshift of the luminescence energy and a general increase in luminescence quantum efficiency are predicted as structure size decreases. In contrast to bulk a-Si:H structures, highly confined a-Si:H exhibits visible luminescence peak energies and high radiative quantum efficiency at room temperature, which is insensi...