Figure 1 | Scientific Reports

Figure 1

From: Quantum-Dot-Sensitized Solar Cell with Unprecedentedly High Photocurrent

Figure 1

Morphology and energetic properties of PbS and PbS:Hg QDs.

(a) Deposition process of PbS:Hg QDs on mesoporous TiO2 nanostructure using successive ionic layer adsorption and reaction (SILAR) method. (b) TEM micrograph of bare TiO2 and QD coated TiO2 nanoparticles using the cationic solution containing 0 mmol, 2 mmol, 4 mmol, 6 mmol and 8 mmol of HgCl2. (c) Tauc plot calculated by using Kubelka-Munk equation from reflectance spectra. (d) UPS spectra of PbS:Hg QD adsorbed TiO2 and extrapolation of low binding energy region. (e) Band edge alignment diagram for PbS and PbS:Hg QDs.

Back to article page