Shuo Wang,Ruixin Ma,Chengyan Wang,Shina Li,Hua Wang
Quaternary chalcogenide Cu2FeSnS4 (CFTS) thin film, a potential material for application as absorber layer in thin film solar cells (TFSCs), dye-sensitized solar cell and photocatalytic, are successfully synthesized by using a convenient blade-coating method. Alkali element Rb was incorporated into CFTS thin films in order to further improve the structure and surface morphology. X-ray diffraction, Raman spectroscopy and field emission scanning electron microscopy were used to characterize the phase purity, morphology and composition of CFTS particles and thin films. It showed that the diffusion of Rb ions is uniform in the films after sulfurization, Rb ions incorporation in CFTS thin films could improve the grain size and surface morphology. All the thin films became smooth and closely packed surface, the thickness of the incorporated films is around 1 μm.
Wang Shuo,Ma Rui-xin,Wang Cheng-yan,Li Shi-na,Wang Hua
Quaternary chalcogenide Cu 2 FeSnS 4 (CFTS) nanoparticles, as a kind of potential absorber layer material in thin film solar cells (TFSCs), were successfully synthesized by using a convenient solvothermal method. Alkali element K is incorporated into CFTS thin films in order to further improve the surface morphology and the optical properties of related films. X-ray diffraction (XRD), Raman spectroscopy and field emission scanning electron microscopy (FESEM) were used to characterize the phase purity, morphology and composition of CFTS particles and thin films. The results show that the particle elemental ratios of Cu/(Fe+Sn) and Fe/Sn are 1.2 and 0.9, respectively, which are close to the characteristics of stoichiometric CFTS. The band gaps of CFTS films before and after doping K ions are estimated to be 1.44 eV and 1.4 eV with an error of ±0.02 eV.
危险品化学品经营许可证（带存储）