Figure 1.

a Temporal evolution of UV–vis absorption (dash) and PL (solid) spectra of the as-prepared PAA-capped CdSe QDs dispersed in water; b TEM and size distribution histogram; c HRTEM; and d SAED images of the as-synthesized PAA-capped CdSe nanocrystals (the absorption peak around 540 nm).

Zhai et al. Nanoscale Res Lett 2011 6:31   doi:10.1007/s11671-010-9774-z