Counter Electrode Impact on Quantum Dot Solar Cell Efficiencies

Quantum dot-sensitized solar cell (QDSSC) has an analogous structure and working principle to the dye sensitizer solar cell (DSSC). It has drawn great attention due to its unique features, like multiple exciton generation (MEG), simple fabrication and low cost. The power conversion efficiency (PCE) of QDSSC is lower than that of DSSC. To increase the PCE of QDSSC, it is required to develop new types of working electrodes, sensitizers, counter electrodes and electrolytes. This review highlights recent developments in QDSSCs and their key components, including the photoanode, sensitizer, electrolyte and counter electrode.

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Low-cost porous Cu2ZnSnSe4 film remarkably superior to noble Pt as counter electrode in quantum dot-sensitized solar cell system

Journal of Power Sources ◽

10.1016/j.jpowsour.2012.11.023 ◽

2013 ◽

Vol 226 ◽

pp. 359-362 ◽

Cited By ~ 53

Author(s):

Xianwei Zeng ◽

Wenjun Zhang ◽

Yan Xie ◽

Dehua Xiong ◽

Wei Chen ◽

...

Keyword(s):

Solar Cell ◽

Quantum Dot ◽

Counter Electrode ◽

Low Cost ◽

Cell System

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Improving performance and stability in quantum dot-sensitized solar cell through single layer graphene/Cu2S nanocomposite counter electrode

Renewable Energy ◽

10.1016/j.renene.2019.07.150 ◽

2020 ◽

Vol 145 ◽

pp. 2192-2200 ◽

Cited By ~ 4

Author(s):

Erdi Akman ◽

Yemliha Altintas ◽

Mahir Gulen ◽

Mucahit Yilmaz ◽

Evren Mutlugun ◽

...

Keyword(s):

Solar Cell ◽

Quantum Dot ◽

Counter Electrode ◽

Single Layer ◽

Single Layer Graphene ◽

Layer Graphene

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Stacked Cu1.8S nanoplatelets as counter electrode for quantum dot-sensitized solar cell

RSC Advances ◽

10.1039/c5ra20965j ◽

2015 ◽

Vol 5 (122) ◽

pp. 100560-100567 ◽

Cited By ~ 12

Author(s):

A. Dennyson Savariraj ◽

G. Rajendrakumar ◽

Samayanan Selvam ◽

S. N. Karthick ◽

B. Balamuralitharan ◽

...

Keyword(s):

Thin Film ◽

Solar Cell ◽

Quantum Dot ◽

Electrocatalytic Activity ◽

Counter Electrode ◽

Counter Electrodes ◽

Cu Deficiency ◽

Polysulfide Electrolyte ◽

Surface Active ◽

Sulfide Species

The electrocatalytic activity of Cu2−xS thin film QDSSC counter electrodes for reducing polysulfide electrolyte depends on surface active sulfide species and Cu deficiency.

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ZnS shell-like CdS quantum dot-sensitized solar cell grown by SILAR approach; effect of electrolyte, counter electrode, and shell thickness

Vacuum ◽

10.1016/j.vacuum.2017.02.007 ◽

2017 ◽

Vol 146 ◽

pp. 548-553 ◽

Cited By ~ 6

Author(s):

Mahya Ganjian ◽

Mohammadreza Kolahdouz ◽

Arash Aletayeb ◽

Maryam Norouzi ◽

Parvin Ebrahimi ◽

...

Keyword(s):

Solar Cell ◽

Quantum Dot ◽

Shell Thickness ◽

Counter Electrode ◽

Cds Quantum Dot

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CdSe quantum dot-sensitized solar cell employing TiO2 nanotube working-electrode and Cu2S counter-electrode

Applied Physics Letters ◽

10.1063/1.3491245 ◽

2010 ◽

Vol 97 (12) ◽

pp. 123107 ◽

Cited By ~ 105

Author(s):

Qing Shen ◽

Akari Yamada ◽

Satoru Tamura ◽

Taro Toyoda

Keyword(s):

Solar Cell ◽

Quantum Dot ◽

Counter Electrode ◽

Tio2 Nanotube ◽

Working Electrode ◽

Cdse Quantum Dot

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Copper Sulfide Catalyzed Porous Fluorine-Doped Tin Oxide Counter Electrode for Quantum Dot-Sensitized Solar Cells with High Fill Factor

International Journal of Photoenergy ◽

10.1155/2017/5461030 ◽

2017 ◽

Vol 2017 ◽

pp. 1-9 ◽

Cited By ~ 5

Author(s):

Satoshi Koyasu ◽

Daiki Atarashi ◽

Etsuo Sakai ◽

Masahiro Miyauchi

Keyword(s):

Charge Transfer ◽

Solar Cell ◽

Quantum Dot ◽

Tin Oxide ◽

Counter Electrode ◽

Fill Factor ◽

Charge Transfer Resistance ◽

Transfer Resistance ◽

Sensitized Solar Cells ◽

Large Charge

The performance of quantum dot-sensitized solar cell (QDSSC) is mainly limited by chemical reactions at the interface of the counter electrode. Generally, the fill factor (FF) of QDSSCs is very low because of large charge transfer resistance at the interface between the counter electrode and electrolyte solution containing redox couples. In the present research, we demonstrate the improvement of the resistance by optimization of surface area and amount of catalyst of the counter electrode. A facile chemical synthesis was used to fabricate a composite counter electrode consisting of fluorine-doped tin oxide (FTO) powder and CuS nanoparticles. The introduction of a sputtered gold layer at the interface of the porous-FTO layer and underlying glass substrate also markedly reduced the resistance of the counter electrode. As a result, we could reduce the charge transfer resistance and the series resistance, which were 2.5 [Ω] and 6.0 [Ω], respectively. This solar cell device, which was fabricated with the presently designed porous-FTO counter electrode as the cathode and a PbS-modified electrode as the photoanode, exhibited a FF of 58%, which is the highest among PbS-based QDSSCs reported to date.

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