Efficiency improvement of quantum dot sensitized solar cells with inserting ZnS layer in the photoanode

Deng, Fei; Mei, Xingan; Wan, Xiangyu; Fan, Runzhou; Wu, Qingfeng; Yan, Xuemin; Wan, Li; Shi, Dean; Xiong, Yan

doi:10.1007/s10854-015-3402-8

Cited by 10 publications

(5 citation statements)

References 15 publications

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“…This two-step dipping procedure is regarded as one successive ionic layer adsorption and reaction (SILAR) cycle, and the incorporated amount of CdS can be increased by repeating the assembly cycles. A total of 12 SILAR cycles were performed, and then the glass was air dried 6,18 . Next, CdSe was deposited on top of the CdS-coated glass by a chemical bath deposition (CBD) method.…”

Section: Methodsmentioning

confidence: 99%

A Novel Preparation of Nano-Copper Chalcogenide (Cu2S)-based Flexible Counter Electrode

Jin

Liu

et al. 2019

Sci Rep

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Copper nanowires (CuNWs) are used to prepare flexible, transparent conducting substrates due to their low cost and ease of fabrication on a large area. A CuNW/polymer composite substrate was prepared and vulcanized to create a novel flexible nano-Cu 2 S/polymer composite substrate. The physical and photovoltaic properties of the substrate can be controlled by tuning the concentration of CuNW dispersion during the preparation of CuNWs and nano Cu 2 S films. The nano-Cu 2 S-based composite substrate was used as an effective flexible counter electrode of a quantum-dot-sensitized solar cell (QDSSC) and resulted in a maximum cell efficiency of 1.01%.

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Section: Methodsmentioning

confidence: 99%

A Novel Preparation of Nano-Copper Chalcogenide (Cu2S)-based Flexible Counter Electrode

Jin

Liu

et al. 2019

Sci Rep

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“…The two-step dipping procedure is regarded as one SILAR cycle, and the incorporated amount of CdS can be increased by repeating the assembly cycles. A total of 12 cycles were performed, followed by drying in air [ 30 ].…”

Section: Experimental Set-upmentioning

confidence: 99%

Incorporation of Mn ²⁺ into CdSe quantum dots by chemical bath co-deposition method for photovoltaic enhancement of quantum dot-sensitized solar cells

Zhang

Liu

et al. 2018

R. Soc. open sci.

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A photoelectric conversion efficiency (PCE) of 4.9% was obtained under 100 mW cm−2 illumination by quantum-dot-sensitized solar cells (QDSSCs) using a CdS/Mn : CdSe sensitizer. CdS quantum dots (QDs) were deposited on a TiO2 mesoporous oxide film by successive ionic layer absorption and reaction. Mn2+ doping into CdSe QDs is an innovative and simple method—chemical bath co-deposition, that is, mixing the Mn ion source with CdSe precursor solution for Mn : CdSe QD deposition. Compared with the CdS/CdSe sensitizer without Mn2+ incorporation, the PCE was increased from 3.4% to 4.9%. The effects of Mn2+ doping on the chemical, physical and photovoltaic properties of the QDSSCs were investigated by energy dispersive spectrometry, absorption spectroscopy, photocurrent density–voltage characteristics and electrochemical impedance spectroscopy. Mn-doped CdSe QDs in QDSSCs can obtain superior light absorption, faster electron transport and slower charge recombination than CdSe QDs.

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“…This two-step dipping process is regarded as one successive ionic layer adsorption and reaction (SILAR) cycle, and the incorporated amount of CdS can be increased by repeating the assembly cycles. A total of 12 SILAR cycles were performed, and the glass was then air-dried …”

Section: Experimental Sectionmentioning

confidence: 99%

“…A total of 12 SILAR cycles were performed, and the glass was then air-dried. 25 Next, CdSe was deposited on top of the CdS-coated glass by a chemical bath deposition (CBD) method. The CdSe deposition was achieved with nitriloacetate as a complex and selenosulfate as the Se source.…”

Section: Introductionmentioning

confidence: 99%

A Ternary-Mixture-Based Counter Electrode for Quantum-Dot-Sensitized Solar Cells

Han

et al. 2020

ACS Appl. Energy Mater.

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A ternary mixture of carbon, copper sulfide, and cobalt sulfide was used to fabricate the counter electrode (CE) in quantum-dot-sensitized solar cells (QDSSCs). The ternary-mixture-based CE achieved much higher energy conversion efficiency than any CE based on the individual material. The mixture and the CE were investigated by photocurrent density–voltage characteristics, X-ray diffraction patterns, electrochemical impedance spectroscopy, and contour line plots. A balanced mix results in enhanced photocurrent and reduced charge transfer resistance at the interface, and this leads to optimized device performance. The highest photoelectric conversion efficiency was 3.73% at a 1:1:1 mass ratio. The efficiency was as high as 3.09% via a corresponding flexible CE.

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Efficiency improvement of quantum dot sensitized solar cells with inserting ZnS layer in the photoanode

Cited by 10 publications

References 15 publications

A Novel Preparation of Nano-Copper Chalcogenide (Cu2S)-based Flexible Counter Electrode

A Novel Preparation of Nano-Copper Chalcogenide (Cu2S)-based Flexible Counter Electrode

Incorporation of Mn ²⁺ into CdSe quantum dots by chemical bath co-deposition method for photovoltaic enhancement of quantum dot-sensitized solar cells

A Ternary-Mixture-Based Counter Electrode for Quantum-Dot-Sensitized Solar Cells

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Efficiency improvement of quantum dot sensitized solar cells with inserting ZnS layer in the photoanode

Cited by 10 publications

References 15 publications

A Novel Preparation of Nano-Copper Chalcogenide (Cu2S)-based Flexible Counter Electrode

A Novel Preparation of Nano-Copper Chalcogenide (Cu2S)-based Flexible Counter Electrode

Incorporation of Mn 2+ into CdSe quantum dots by chemical bath co-deposition method for photovoltaic enhancement of quantum dot-sensitized solar cells

A Ternary-Mixture-Based Counter Electrode for Quantum-Dot-Sensitized Solar Cells

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Incorporation of Mn ²⁺ into CdSe quantum dots by chemical bath co-deposition method for photovoltaic enhancement of quantum dot-sensitized solar cells