Digital.CSIC. Repositorio Institucional del CSIC

oai:digital.csic.es:10261/332073

6 pages. -- Figure S1. Pb 4f and S 2p high resolution XPS spectra obtained from the PbS nanoparticles. -- Figure S2. XRD patterns of PbS nanoparticles with and without H2-reducing treatment. -- Figure S3. SEM images and EDX spectra of a) PbS nanoparticles and b) PbS powders after annealing at 600℃ for 3h with H2/Ar atmosphere. -- Figure S4. Histograms of the grain size distribution obtained from the cross section SEM image of the a) PbS pellet without reduction process, and b) PbS pellet with reduction process. SEM images are shown in Figure 3. -- Figure S5. XRD patterns of the Pb1-xCuxS a) nanoparticles and b) annealed powder. -- Figure S6. a) XRD patterns of the SPS sintered Pb1-xCuxS pellets; b) Expanded view of the regions corresponding to the PbS (200) diffraction peak. -- Figure S7. The function of the Cu concentration on the lattice parameters of the Pb1-xCuxS pellets: a) Lattice parameter a=b=c (Å); b) Volume of Cell (Å 3). -- Figure S8. Cross-section SEM image and EDX compositional maps of a Pb0.955Cu0.045S pellet. -- Figure S9. EELS chemical composition maps obtained from the red squared area of the STEM micrograph of the Pb0.955Cu0.045S pellet. -- Table S1. Pb1-xCuxS nanoparticle composition as measured by SEM-EDX and crystal domain size as obtained from XRD data using Scherrer equation. -- Table S2. Hall charge carrier concentration (n), mobility () and effective mass (m*) of Pb1- xCuxS pellets at room temperature., Peer reviewed