Ni2+ enriched carbon nanotubes nanohybrids based non-platinum counter electrodes for dye sensitized solar cells

Novel gamma-irradiated chitosan-doped reduced graphene-CuInS2 composites as counter electrodes for dye-sensitized solar cells

“…The broad peak at approximately 22.15° indicates an amorphous structure of chitosan. 20 The peaks corresponding to CuInS 2 appeared at 29.1°, 31.4°, 1–32 42.5°, and 49.1° for the planes (112), (200), (204), and (312), respectively. This indicated the complete conversion of In 2 S 3 into CuInS 2 .…”

“…This metal is expensive, corrodes in the presence of an electrolyte, and is ineffective for function in the electrolyte of the iodine-free redox couple. 6 As a result, other CEs are considered alternatives to Pt for carrying out the reduction reactions.…”

Dual Application of Waste Grape Skin for Photosensitizers and Counter Electrodes of Dye-Sensitized Solar Cells

“…Moreover, a higher J SC value of 1.52 mA cm − 2 is achieved for the KA-GSDC-based device compared to that of the GSDC-based DSSC (0.85 mA cm −2 ). The faster the electrocatalysis of the electrode, the faster the redox reaction, which leads to the faster regeneration of dye molecules in the excited state in the I − /I 3− electrolyte [ 52 ]. The rapid regeneration of dye molecules improves the light-harvesting ability of photoanodes due to the production of plentiful photogenerated carriers, thus increasing the J SC value.…”

Efficient NiO Impregnated Walnut Shell-Derived Carbon for Dye-Sensitized Solar Cells

“…23 Recently, a NiO-multiwalled carbon nanotubes (MWCNTs) composite was prepared and utilized as CE for DSSCs, the assembled device exhibited a PCE of 3.80%. 24 Furthermore, Waqar et al observed that the NiOacetylene black composite as CE demonstrated promising catalytic activity, and the DSSC showed PCE of 7.75%. 25 Not only are the total performances inferior to those of Pt CE, but mixing NiO with carbon materials requires a multistep heating procedure that takes a long time and involves the use of harmful reagents.…”

“…To alleviate this problem, NiO nanoparticles have been combined with several conductive materials. − Carbon materials demonstrated a potential ability to enhance the conductivity of NiO and hence the overall performance of DSSC via the synergistic effect . Recently, a NiO-multiwalled carbon nanotubes (MWCNTs) composite was prepared and utilized as CE for DSSCs, the assembled device exhibited a PCE of 3.80% . Furthermore, Waqar et al observed that the NiO-acetylene black composite as CE demonstrated promising catalytic activity, and the DSSC showed PCE of 7.75% .…”