Table 1 Parameters of ZnS QDs capped by chitosan as a function of pH during the synthesis
From: One-step colloidal synthesis of biocompatible water-soluble ZnS quantum dot/chitosan nanoconjugates
Sample | pH | λexc(nm) | EQD(eV) | Blue shift (eV) | Size, 2r(nm) |
|---|---|---|---|---|---|
Bulka = 3.61 | |||||
QD_ZnS_4 | 4.0 ± 0.1 | 318 ± 2 | 3.74 ± 0.02 | 0.13 ± 0.02 | 4.7 ± 0.1 |
QD_ZnS_5 | 5.0 ± 0.1 | 312 ± 2 | 3.79 ± 0.02 | 0.18 ± 0.02 | 4.4 ± 0.1 |
QD_ZnS_6 | 6.0 ± 0.1 | 280 ± 2 | 3.92 ± 0.02 | 0.31 ± 0.02 | 3.8 ± 0.1 |