Figure 1.
(a) Linear absorption (cm−1) of 4.5 and 5.5 monolayer (ML) CdSe colloidal quantum wells (CQWs) based upon literature data. (b) Typical TEM image of 4.5 ML CdSe CQW sample. (c) Normalized, fluence-dependent emission of CQW solutions. (d) Normalized, fluence-dependent emission of CQW films illuminated with a 400 μm diameter spot. Normalization is to the excitonic emission peak. (e) Cartoon of single exciton, biexciton, and transition to unbound carrier plasma.