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Title: Optimizing photovoltaic performance in CuInS 2 and CdS quantum dot-sensitized solar cells by using an agar-based gel polymer electrolyte

Journal Article · · RSC Advances
DOI: https://doi.org/10.1039/c6ra27635k · OSTI ID:1425981

Quantum dot-sensitized solar cells (QDSSCs) offer new opportunities to address the clean energy challenge, being one of the top candidates for third generation photovoltaics. Like dye-sensitized solar cells (DSSCs), QDSSCs normally use liquid electrolytes that suffer from issues such as evaporation or leakage. In this study a gel polysulfide electrolyte was prepared containing a natural polymer, agar, and was used as a quasi-solid-state electrolyte in solar cells to replace the conventional liquid electrolytes. This gel electrolyte shows almost the same conductivity as the liquid one. The solar cells were fabricated using CuInS2 quantum dots (QDs), previously synthesized, deposited on TiO2 photoanodes by electrophoretic deposition (EPD). CdS was deposited on TiO2 by successive ionic layer adsorption and reaction (SILAR). Reduced graphene oxide (RGO)–Cu2S, brass, and thin film CuxS were used as counter electrodes. Compared to a liquid polysulfide water based electrolyte, solar cells based on CuInS2 and CdS using gel polymer electrolyte (GPE) exhibit greater incident photon to current conversion efficiency (IPCE = 51.7% at 520 nm and 72.7% at 440 nm), photocurrent density (Jsc = 10.75 and 13.51 mA cm-2), and power conversion efficiency (η = 2.97 and 2.98%) while exhibiting significantly enhanced stability. The solar cells employing the agar-based gel polymeric electrolyte are about a factor of 0.20 more stable than using a liquid electrolyte. The higher photovoltaic performance is due to the good conductivity and high wettability as well as the superior permeation capability of the gel electrolyte into the mesoporous matrix of a TiO2 film

Research Organization:
University of Notre Dame, IN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division
Grant/Contract Number:
FC02-02ER63421
OSTI ID:
1425981
Journal Information:
RSC Advances, Vol. 7, Issue 11; ISSN 2046-2069
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 36 works
Citation information provided by
Web of Science

References (45)

Solution deposition of thin solid compound films by a successive ionic-layer adsorption and reaction process journal May 1985
Quantum Dot Solar Cells. The Next Big Thing in Photovoltaics journal March 2013
Meeting the Clean Energy Demand:  Nanostructure Architectures for Solar Energy Conversion journal January 2007
Agar-Based Gel Electrolyte for Electrochromic Device Application journal March 2012
Nature of Photovoltaic Action in Dye-Sensitized Solar Cells journal March 2000
Gel polymer electrolytes for dye sensitised solar cells: a review journal March 2013
Noninjection Gram-Scale Synthesis of Monodisperse Pyramidal CuInS 2 Nanocrystals and Their Size-Dependent Properties journal August 2010
A stable quasi-solid-state dye-sensitized solar cell with an amphiphilic ruthenium sensitizer and polymer gel electrolyte journal May 2003
How Does a SILAR CdSe Film Grow? Tuning the Deposition Steps to Suppress Interfacial Charge Recombination in Solar Cells journal April 2014
Photovoltaic activity in a ZnTe/PEO–chitosan blend electrolyte junction journal August 2007
Dye-sensitized solar cells with ionic gel electrolytes prepared from imidazolium salts and agarose journal May 2006
Performances of some low-cost counter electrode materials in CdS and CdSe quantum dot-sensitized solar cells journal January 2014
Functional transparent quasi-solid state dye-sensitized solar cells made with different oligomer organic/inorganic hybrid electrolytes journal January 2017
A cadmium sulphide-solid electrolyte photoelectrochemical solar cell journal September 1988
Long-term stability of dye-sensitised solar cells journal January 2001
A Suitable Polysulfide Electrolyte for CdSe Quantum Dot-Sensitized Solar Cells journal January 2013
Solution-Processed Inorganic Solar Cell Based on in Situ Synthesis and Film Deposition of CuInS 2 Nanocrystals journal January 2010
Electrodeposited cobalt-copper sulfide counter electrodes for highly efficient quantum dot sensitized solar cells journal August 2016
CuInS 2 -Sensitized Quantum Dot Solar Cell. Electrophoretic Deposition, Excited-State Dynamics, and Photovoltaic Performance journal February 2013
Recent Advances in Quantum Dot Surface Chemistry journal February 2014
Size-Dependent Photovoltaic Performance of CuInS 2 Quantum Dot-Sensitized Solar Cells journal November 2014
Novel biopolymer gel electrolyte for dye-sensitized solar cell application journal January 2013
Conductivity study of a gelatin-based polymer electrolyte journal December 2007
Water-Based Thixotropic Polymer Gel Electrolyte for Dye-Sensitized Solar Cells journal April 2013
Solidification of ionic liquid redox electrolytes using agarose biopolymer for highly performing dye-sensitized solar cells journal October 2015
Cu 2 S Reduced Graphene Oxide Composite for High-Efficiency Quantum Dot Solar Cells. Overcoming the Redox Limitations of S 2 /S n 2– at the Counter Electrode journal September 2011
Solid type dye-sensitized solar cell using polysaccharide containing redox electrolyte solution journal October 2004
Efficient Synthesis of Highly Luminescent Copper Indium Sulfide-Based Core/Shell Nanocrystals with Surprisingly Long-Lived Emission journal February 2011
Quantum-Dot-Sensitized Solar Cells journal July 2010
Review on polymer electrolyte in dye-sensitized solar cells (DSSCs) journal May 2015
Dextran based highly conductive hydrogel polysulfide electrolyte for efficient quasi-solid-state quantum dot-sensitized solar cells journal March 2013
ZnO/CdTe and ZnO/CdS core-shell nanowire arrays for extremely thin absorber solar cells journal January 2011
Effect of NH4I and I2 concentration on agar gel polymer electrolyte properties for a dye-sensitized solar cell journal December 2012
High-Performance and Stable Gel-State Dye-Sensitized Solar Cells Using Anodic TiO 2 Nanotube Arrays and Polymer-Based Gel Electrolytes journal March 2015
Boosting the Efficiency of Quantum Dot Sensitized Solar Cells through Modulation of Interfacial Charge Transfer journal March 2012
Supersensitization of CdS Quantum Dots with a Near-Infrared Organic Dye: Toward the Design of Panchromatic Hybrid-Sensitized Solar Cells journal October 2011
Influence of Plasticizer Type on the Properties of Polymer Electrolytes Based on Chitosan journal September 2008
Single-step in-situ preparation of thin film electrolyte for quasi-solid state quantum dot-sensitized solar cells journal February 2013
An integrated approach to realizing high-performance liquid-junction quantum dot sensitized solar cells journal December 2013
Novel agarose polymer electrolyte for quasi-solid state dye-sensitized solar cell journal February 2011
Quantum-Dot-Based Solar Cells: Recent Advances, Strategies, and Challenges journal December 2014
Agar-based films for application as polymer electrolytes journal January 2010
Photosensitization of TiO 2 Nanostructures with CdS Quantum Dots: Particulate versus Tubular Support Architectures journal March 2009
Highly Efficient CdS Quantum Dot-Sensitized Solar Cells Based on a Modified Polysulfide Electrolyte journal June 2011
Two Distinct Transitions in Cu x InS 2 Quantum Dots. Bandgap versus Sub-Bandgap Excitations in Copper-Deficient Structures journal April 2016

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Direct Generation of Mn‐Doped ZnS Quantum Dots/Alginate Nanocomposite Beads Based on Gelation and In Situ Synthesis of Quantum Dots journal January 2019
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Biobased aerogels with different surface charge as electrolyte carrier membranes in quantum dot-sensitized solar cell journal April 2018
Sodium carboxymethyl starch-based highly conductive gel electrolyte for quasi-solid-state quantum dot-sensitized solar cells journal October 2017
Recent advances in electrolytes for quantum dot-sensitized solar cells journal January 2018
Electrostatically regulated photoinduced electron transfer in “cationic” eco-friendly CuInS 2 /ZnS quantum dots in water journal January 2018

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