Facile chemical bath deposition of CuS nano peas like structure as a high efficient counter electrode for quantum-dot sensitized solar cells

Abstract In this paper, highly efficient nano peas like structure CuS film has been successfully employed in quantum dot sensitized solar cells (QDSSCs) for its highest catalytic activity at minimal cost. The CuS thin film electrode was deposited on fluorine-doped tin oxide (FTO) substrate by chemical bath deposition technique using urea at low deposition temperatures. This electrode elevated the short circuit current and fill factor in comparison to the frequently used Pt electrode. Moreover, electrochemical measurement data disclosed higher electrocatalytic activity toward polysulfide reduction. The CuS film exhibited an average particle size of 180–270 nm and film thickness of 825 nm. It also revealed superior Jsc (13.87 mA/cm2) and conversion efficiency of 4.01% which is remarkably higher than that of the Pt-based cell (1.07%). In addition, stability test conducted for both CuS and Pt-based cells for about 900 min at working conditions affirmed that the long-term stability of the CuS film decreased by 16.66% (4.02–3.35%), while that of the Pt based cell got elevated by 24.29% until 700 min, and consequently diminished by 8.27% from 700 to 900 min.

[1]  Liyuan Han,et al.  Colloidal quantum dot solar cells , 2011 .

[2]  Yanjie Hu,et al.  In situ Au-catalyzed fabrication of branch-type SnO2 nanowires by a continuous gas-phase route for dye-sensitized solar cells , 2013 .

[3]  Laurence M. Peter,et al.  Characterization and Modeling of Dye-Sensitized Solar Cells , 2007, ECS Transactions.

[4]  M. Grätzel,et al.  CoS supersedes Pt as efficient electrocatalyst for triiodide reduction in dye-sensitized solar cells. , 2009, Journal of the American Chemical Society.

[5]  E. Palomares,et al.  Photo-induced charge transfer dynamics in efficient TiO2/CdS/CdSe sensitized solar cells , 2011 .

[6]  P. Kamat,et al.  Cu2S Reduced Graphene Oxide Composite for High-Efficiency Quantum Dot Solar Cells. Overcoming the Redox Limitations of S2-/Sn2- at the Counter Electrode. , 2011, The journal of physical chemistry letters.

[7]  P. Kamat,et al.  CdSe quantum dot sensitized solar cells. Shuttling electrons through stacked carbon nanocups. , 2009, Journal of the American Chemical Society.

[8]  Chia-Ying Chen,et al.  Quantum Dot–Sensitized Solar Cells Featuring CuS/CoS Electrodes Provide 4.1% Efficiency , 2011 .

[9]  Pralay K. Santra,et al.  Earth-Abundant Cobalt Pyrite (CoS2) Thin Film on Glass as a Robust, High-Performance Counter Electrode for Quantum Dot-Sensitized Solar Cells. , 2013, The journal of physical chemistry letters.

[10]  K. Prabakar,et al.  Surface reinforced platinum counter electrode for quantum dots sensitized solar cells , 2013 .

[11]  Prashant V. Kamat,et al.  Quantum Dot Solar Cells. Semiconductor Nanocrystals as Light Harvesters , 2008 .

[12]  Eiichi Abe,et al.  Effect of the thickness of the Pt film coated on a counter electrode on the performance of a dye-sensitized solar cell , 2004 .

[13]  Chia-Ying Chen,et al.  Electrocatalytic sulfur electrodes for CdS/CdSe quantum dot-sensitized solar cells. , 2010, Chemical communications.

[14]  N. Makarov,et al.  An integrated approach to realizing high-performance liquid-junction quantum dot sensitized solar cells , 2013, Nature Communications.

[15]  Michael Grätzel,et al.  Solar energy conversion by dye-sensitized photovoltaic cells. , 2005, Inorganic chemistry.

[16]  H. Teng,et al.  Photoactive p-type PbS as a counter electrode for quantum dot-sensitized solar cells , 2013 .

[17]  H. Teng,et al.  CuInS2 quantum dots coated with CdS as high-performance sensitizers for TiO2 electrodes in photoelectrochemical cells , 2011 .

[18]  K. Ho,et al.  Electrophoretic deposition of mesoporous TiO2 nanoparticles consisting of primary anatase nanocrystallites on a plastic substrate for flexible dye-sensitized solar cells. , 2011, Chemical communications.

[19]  M. Akinc,et al.  Synthesis of Nickel Sulfide Powders by Thioacetamide in the Presence of Urea , 2005 .

[20]  Wenxi Guo,et al.  Carbon fiber/Co9S8 nanotube arrays hybrid structures for flexible quantum dot-sensitized solar cells. , 2014, Nanoscale.

[21]  Chandu V. V. M. Gopi,et al.  Cobalt sulfide thin film as an efficient counter electrode for dye-sensitized solar cells , 2014 .

[22]  M. Grätzel,et al.  A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films , 1991, Nature.

[23]  Arie Zaban,et al.  Quantum-dot-sensitized solar cells. , 2010, Chemphyschem : a European journal of chemical physics and physical chemistry.

[24]  F. Fabregat‐Santiago,et al.  Recombination in quantum dot sensitized solar cells. , 2009, Accounts of chemical research.

[25]  Xueping Gao,et al.  Carbon nanotubes with titanium nitride as a low-cost counter-electrode material for dye-sensitized solar cells. , 2010, Angewandte Chemie.

[26]  Yuh‐Lang Lee,et al.  Highly Efficient Quantum‐Dot‐Sensitized Solar Cell Based on Co‐Sensitization of CdS/CdSe , 2009 .

[27]  K. Prabakar,et al.  Highly efficient solution processed nanorice structured NiS counter electrode for quantum dot sensitized solar cells , 2014 .

[28]  Christian Punckt,et al.  Functionalized graphene as a catalytic counter electrode in dye-sensitized solar cells. , 2010, ACS nano.

[29]  G. Dilecce,et al.  N 2 とO 2 によるN 2 + (B 2 Σ u + ,ν=0)の衝突消光と窒素スペクトル帯の強度比によるE/N測定に及ぼす影響 , 2010 .

[30]  A. Zaban,et al.  PbS as a Highly Catalytic Counter Electrode for Polysulfide-Based Quantum Dot Solar Cells , 2011 .

[31]  P. Kamat.  Meeting the Clean Energy Demand: Nanostructure Architectures for Solar Energy Conversion , 2007 .

[32]  Benjamin A. Garcia,et al.  Corrigendum: MacroH2A histone variants act as a barrier upon reprogramming towards pluripotency , 2013 .

[33]  H. Teng,et al.  High-performance quantum dot-sensitized solar cells based on sensitization with CuInS2 quantum dots/CdS heterostructure , 2012 .

[34]  Anders Hagfeldt,et al.  A novel catalyst of WO2 nanorod for the counter electrode of dye-sensitized solar cells. , 2011, Chemical communications.

[35]  K. Prabakar,et al.  Optimal-Temperature-Based Highly Efficient NiS Counter Electrode for Quantum-Dot-Sensitized Solar Cells , 2014 .

[36]  Sudip Kumar Batabyal,et al.  Solution processed transition metal sulfides: application as counter electrodes in dye sensitized solar cells (DSCs). , 2011, Physical chemistry chemical physics : PCCP.

[37]  Qing Wang,et al.  Electrochemical impedance spectroscopic analysis of dye-sensitized solar cells. , 2005, The journal of physical chemistry. B.

[38]  A. Nozik.  Quantum dot solar cells , 2002 .

[39]  A. J. Frank,et al.  Morphological and photoelectrochemical characterization of core-shell nanoparticle films for dye-sensitized solar cells: Zn-O type shell on SnO2 and TiO2 cores. , 2004, Langmuir : the ACS journal of surfaces and colloids.