How to remove the influence of trace water from the absorption spectra of SWNTs dispersed in ionic liquids

• Juan Yang,
• Daqi Zhang and
• Yan Li

Beilstein J. Nanotechnol. 2011, 2, 653–658, doi:10.3762/bjnano.2.69

• to their chiralities is of great importance in the quantitative analysis of bulk SWNT samples. However, because water has strong absorption bands in the near-infrared (NIR) region where the E11 of semiconducting SWNTs lies, even a trace amount of water dissolved in an IL may introduce notable peaks

Fabrication and spectroscopic studies on highly luminescent CdSe/CdS nanorod polymer composites

• Jana Bomm,
• Andreas Büchtemann,
• Angela Fiore,
• Liberato Manna,
• James H. Nelson,
• Diana Hill and
• Wilfried G. J. H. M. van Sark

Beilstein J. Nanotechnol. 2010, 1, 94–100, doi:10.3762/bjnano.1.11

• NRs with aspect ratio 6 can be found using the scaling ~3 µM per 0.1 wt % whilst for NRs with aspect ratio 3 this is lower at ~2 µM per 0.1wt %. The absorption spectra of the P(LMA-co-EGDM) nanocomposites with NRs (aspect ratio 3) at different NR concentrations depicted in Figure 6a reveal strong

• absorption at shorter wavelengths (400–500 nm) and the first exciton peak at 619 nm. The nanorods are well dispersed in the polymer matrix, as shown by the lack of scattering in the absorption spectra at wavelengths much larger than that of the first exciton peak (Figure 6a). Figure 5c illustrates that we