ABSTRACT

To confirm the presence of bundles and to study their optical properties, we compare as-prepared SWNT dispersions in D2O with sodium dodecylbenzene sulfonate (SDBS) as a surfactant and the same sample after two months (Fig. 6.1a,b). The (6,5) and (7,5) emission peaks observed in Ref. 2are indicated with two dash-dotted lines. These show a ~1−5 nm blue shift compared to our measurements but on samples prepared with sodium dodecyl sulfate (SDS) as a surfactant.