A novel unsymmetrical cyanine dye(noted as CD) was applied to dye sensitized nanoporous TiO 2 photoelectrochemical cells. The incident photon to electron conversion efficiency up to 84 34% was achieved, which is notab...A novel unsymmetrical cyanine dye(noted as CD) was applied to dye sensitized nanoporous TiO 2 photoelectrochemical cells. The incident photon to electron conversion efficiency up to 84 34% was achieved, which is notably high for cells employing pure organic dyes. To circumvent the sealing difficulties present in wet type cells, the solid state cell was fabricated using poly(ethyleneoxide)(PEO) based gel network polymer electrolyte as charge transfer material between two electrodes. The resulting solid state cell had an energy conversion efficiency of 0 86%, with open circuit voltage of 0 53 V and short circuit current density of 0 96 mA/cm 2 under 38 1 mW/cm 2 white light illumination. The results show that the gel network polymer electrolyte is appropriate for assembling solid state photoelectrochemical cells.展开更多
CdS thin film were prepared by chemical bath deposition（CBD）method on the substrates of SnO2 glass.Photoelectrochemical cells used CdS thin film were fabricated.The results indicated that performance of photoelectro...CdS thin film were prepared by chemical bath deposition（CBD）method on the substrates of SnO2 glass.Photoelectrochemical cells used CdS thin film were fabricated.The results indicated that performance of photoelectrochemical cells changed when injecting different cation solution.CdS thin film photoelectrochemical cell exhibited recognition characteristic of Cd2+ion,and this recognition characteristic possess of high selectivities over common cations.展开更多
光电化学水分解电池能够将太阳能直接转化为氢能,是一种理想的太阳能利用方式.p-n叠层电池具有理论转换效率高、成本低廉、材料选择灵活等优势,被认为是最具潜力的一类光电化学水分解电池.然而,目前这类叠层电池的太阳能转化效率还不高...光电化学水分解电池能够将太阳能直接转化为氢能,是一种理想的太阳能利用方式.p-n叠层电池具有理论转换效率高、成本低廉、材料选择灵活等优势,被认为是最具潜力的一类光电化学水分解电池.然而,目前这类叠层电池的太阳能转化效率还不高,主要原因是单个电极的效率太低.本文介绍了几种提高光电极分解水性能的方法—减小光生载流子的体相复合、表面复合以及抑制背反应等,同时综述了国内外关于几种p型半导体光阴极的研究进展,如Si、In P、Cu In1-xGaxS(Se)2、Cu2Zn Sn S4等.通过总结,作者提出一种p-Cu2Zn Sn S4(Cu In1-xGaxS(Se)2)/n-Ta3N5(Fe2O3)组装方式,有望获得高效低成本叠层光电化学水分解电池.展开更多
文摘A novel unsymmetrical cyanine dye(noted as CD) was applied to dye sensitized nanoporous TiO 2 photoelectrochemical cells. The incident photon to electron conversion efficiency up to 84 34% was achieved, which is notably high for cells employing pure organic dyes. To circumvent the sealing difficulties present in wet type cells, the solid state cell was fabricated using poly(ethyleneoxide)(PEO) based gel network polymer electrolyte as charge transfer material between two electrodes. The resulting solid state cell had an energy conversion efficiency of 0 86%, with open circuit voltage of 0 53 V and short circuit current density of 0 96 mA/cm 2 under 38 1 mW/cm 2 white light illumination. The results show that the gel network polymer electrolyte is appropriate for assembling solid state photoelectrochemical cells.
文摘CdS thin film were prepared by chemical bath deposition（CBD）method on the substrates of SnO2 glass.Photoelectrochemical cells used CdS thin film were fabricated.The results indicated that performance of photoelectrochemical cells changed when injecting different cation solution.CdS thin film photoelectrochemical cell exhibited recognition characteristic of Cd2+ion,and this recognition characteristic possess of high selectivities over common cations.
文摘光电化学水分解电池能够将太阳能直接转化为氢能,是一种理想的太阳能利用方式.p-n叠层电池具有理论转换效率高、成本低廉、材料选择灵活等优势,被认为是最具潜力的一类光电化学水分解电池.然而,目前这类叠层电池的太阳能转化效率还不高,主要原因是单个电极的效率太低.本文介绍了几种提高光电极分解水性能的方法—减小光生载流子的体相复合、表面复合以及抑制背反应等,同时综述了国内外关于几种p型半导体光阴极的研究进展,如Si、In P、Cu In1-xGaxS(Se)2、Cu2Zn Sn S4等.通过总结,作者提出一种p-Cu2Zn Sn S4(Cu In1-xGaxS(Se)2)/n-Ta3N5(Fe2O3)组装方式,有望获得高效低成本叠层光电化学水分解电池.
