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- Evaluation of cytotoxicity, photoluminescence and bioimaging properties of nanoparticles of nanoparticle suspensions prepared from nonporous and porous silicon nanowires
Evaluation of cytotoxicity, photoluminescence and bioimaging properties of nanoparticles of nanoparticle suspensions prepared from nonporous and porous silicon nanowires
in: Temporal Proceedings (2014)
Cytotoxicity, photoluminescence (PL) and bio-imaging properties of silicon nanoparticles prepared from nonpo-rous (LD) and porous (HD) silicon nanowires (SiNWs) have been investigated. Samples of LD-SiNWs and HD-SiNWs were formed by metal (silver)-assisted wet chemical etching of lowly and heavily boron-doped (100)-oriented single crystalline silicon substrates, respectively. The prepared silicon nanowires and its aqueous suspen-sions exhibit efficient room temperature photoluminescence (PL) in the spectral region of 600–1000 nm and it is explained by the radiative recombination of excitons confined within nanostructured sidewall of LD-SiNWs and volume of HD-SiNWs. For the first time, this work demonstrates bio-compatibility properties of such silicon nanostructures and their bio-imaging applications.
DOI: Array