Nanophase CuInS₂ nanosheets/CuS composite grown by the SILAR method leads to high performance as a counter electrode in dye sensitized solar cells

Abstract

CuInS2 nanosheets are synthesized by SILAR followed by annealing at 500 °C, whereas at 250 °C a composite of CIS and CuS is obtained. This composite yields an efficiency of 6.3% as counter electrode for DSSC.

Large area growth of MoTe2 films as high performance counter electrodes for dye-sensitized solar cells

“…The peak current and peak to peak separation is important parameters for determining the catalytic activity of CE. The rate constant of a redox reaction is inversely proportional to its peak separation (Epp) 27 – 29 . Epp is calculated using the formula …”

Effect of annealing atmosphere on quaternary chalcogenide-based counter electrodes in dye-sensitized solar cell performance: synthesis of Cu2FeSnS4 and Cu2CdSnS4 nanoparticles by thermal decomposition process

“…From the CV analysis, the higher I pc1 values and lower E pp values of S-CFCTS-CE and S-CFTS-CE indicate a better electrocatalytic activity for the reduction of I 3 À ions in the electrolyte solution, compared to N-CFTS-CE and N-CCdTS-CE, but inferior activity to that of Pt-CE. According to the literature, the elemental compositions, 12,31,34 morphologies, 35,36 electrical conductivities, 12,37-39 crystal structures, 40 secondary phases, 41 and specic surface areas 12,[42][43][44] of CE materials affect the electrochemical catalytic parameters. The higher electrocatalytic activity of S-CFTS-CEs and S-CCdTS-CEs as compared to N-CFTS-CE and N-CCdTS-CE might be due to the variation in elemental composition ( Fig.…”

Solvent volume-driven CuInAlS2 nanoflake counter electrode for effective electrocatalytic tri-iodide reduction in dye-sensitized solar cells

“…The non-toxic CuInS 2 semiconductor material, used as an absorber layer in heterojunction solar cells has a high absorption coefficient (> 10 4 cm -1 ) with the optical band gap value varying from 1.39-1.55 eV which depends upon the deposition techniques and growth conditions [14]. Few reports are available on CuInS 2 and CuInGaS 2 as the CE in DSSCs to the best of our knowledge [15][16][17]. Since Ga is a rare and costly element, it can be either substituted by earth abundant and non toxic elements such as Al, Fe, Ce, Sn, Zn, Na, etc in CuInS 2 [18][19][20][21][22][23].…”