Investigation of Coral-Like Cu2O Nano/Microstructures as Counter Electrodes for Dye-Sensitized Solar Cells

Tsai, Chih‐Hung; Fei, Po-Hsi; Chen, Chih-Han

doi:10.3390/ma8095274

Cited by 22 publications

(10 citation statements)

References 39 publications

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“…The observation revealed superior electrocatalytic activity of a well-prepared CB film compared to that of conventional sputtered Pt. Due to the flexible nature of Cu foil substrates, Cu 2 O has also been employed as a CE in DSSC [ 102 ]. The fabrication of different samples by varying the sintering temperature of the CEs and obtaining the maximum efficiency of 3.62% at 600 °C of temperature has been reported [ 102 ].…”

Section: Previous and Further Improvements In Dsscsmentioning

confidence: 99%

“…Due to the flexible nature of Cu foil substrates, Cu 2 O has also been employed as a CE in DSSC [ 102 ]. The fabrication of different samples by varying the sintering temperature of the CEs and obtaining the maximum efficiency of 3.62% at 600 °C of temperature has been reported [ 102 ]. Figure 7 shows the I – V characteristics and IPCE curves of DSSCs employing different Cu 2 O CEs.…”

Section: Previous and Further Improvements In Dsscsmentioning

confidence: 99%

“…

Fig. 7 The a current density–voltage ( J – V ) and b incident monochromatic photon-to-current conversion efficiency (IPCE) curves of DSSCs using various Cu 2 O CE [ 102 ]

Fig. 8 Nyquist plots of the Device_FTO and Device_Mo.…”

Section: Previous and Further Improvements In Dsscsmentioning

confidence: 99%

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Dye-Sensitized Solar Cells: Fundamentals and Current Status

Sharma

Sharma³

2018

Nanoscale Res Lett

823

426

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Dye-sensitized solar cells (DSSCs) belong to the group of thin-film solar cells which have been under extensive research for more than two decades due to their low cost, simple preparation methodology, low toxicity and ease of production. Still, there is lot of scope for the replacement of current DSSC materials due to their high cost, less abundance, and long-term stability. The efficiency of existing DSSCs reaches up to 12%, using Ru(II) dyes by optimizing material and structural properties which is still less than the efficiency offered by first- and second-generation solar cells, i.e., other thin-film solar cells and Si-based solar cells which offer ~ 20–30% efficiency. This article provides an in-depth review on DSSC construction, operating principle, key problems (low efficiency, low scalability, and low stability), prospective efficient materials, and finally a brief insight to commercialization.

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Section: Previous and Further Improvements In Dsscsmentioning

confidence: 99%

Section: Previous and Further Improvements In Dsscsmentioning

confidence: 99%

See 1 more Smart Citation

Dye-Sensitized Solar Cells: Fundamentals and Current Status

Sharma

Sharma³

2018

Nanoscale Res Lett

823

426

View full text Add to dashboard Cite

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“…The characteristics of the DSSC devices were analyzed through current density-voltage (J-V), incident photo-to-current conversion efficiency (IPCE), and electrochemical impedance spectroscopy (EIS) measurements. The complete details of the measurements are described in a report of our previous work [23]. Figure 3 shows the top-view and cross-sectional SEM images of CuO and CuO/graphene CEs.…”

Section: Fabricating the Dsscsmentioning

confidence: 99%

CuO and CuO/Graphene Nanostructured Thin Films as Counter Electrodes for Pt-Free Dye-Sensitized Solar Cells

et al. 2018

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Abstract:Copper oxide (CuO) and CuO/graphene nanostructured thin films were used as counter electrodes (CEs) for dye-sensitized solar cells (DSSCs). CuO and CuO/graphene pastes were prepared and coated on fluorine-doped tin oxide (FTO) glass substrates using a doctor-blade coating method. The substrates were then sintered at 350 • C for 30 min to form CuO and CuO/graphene nanostructures. The material properties of the CuO and CuO/graphene CEs were analyzed using a scanning electron microscope, transmission electron microscope, energy-dispersive spectrometer, thermogravimetric analysis instrument, X-ray diffractometer, Raman spectroscopy, X-ray photoelectron spectrometer, ultraviolet-visible spectrophotometer, and cyclic voltammetry instrument. The CuO and CuO/graphene CEs were used to fabricate DSSCs, and the device characteristics were analyzed using current density-voltage, incident photo-to-current conversion efficiency, and electrochemical impedance spectroscopy measurements. The results showed that when CuO and CuO/graphene were used as the CEs, the device conversion efficiencies were 2.73% and 3.40%, respectively. CuO is a favorable replacement for expensive platinum (Pt) because it features a simple fabrication process and is inexpensive and abundant. Furthermore, graphene, which exhibits high carrier mobility, may be added to enhance the electrical and catalytic abilities of CuO/graphene CEs. This is the first study to examine the use of CuO and CuO/graphene for developing Pt-free CEs in DSSCs.

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“…Finally, the device characteristics of the DSSCs were comprehensively analyzed using the current density-voltage (J-V), incident photo-current conversion efficiency (IPCE), and EIS measurement. The complete details of the measurements are described in a report of our previous work [31]. Figure 2 shows the SEM images of the Pt electrode fabricated through thermal decomposition, electrochemical deposition, and chemical reduction.…”

Section: Characteristic Analyses Of the Counter Electrodes And The Dsmentioning

confidence: 99%

Investigation of Electrochemically Deposited and Chemically Reduced Platinum Nanostructured Thin Films as Counter Electrodes in Dye-Sensitized Solar Cells

2018

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Abstract:In this paper, we demonstrated that platinum (Pt) counter electrodes (CEs) fabricated using electrochemical deposition and chemical reduction can replace conventional high-temperature thermally decomposed Pt electrodes. In this study, Pt electrodes were fabricated using thermal decomposition, electrochemical deposition, and chemical reduction, and the influence of the different Pt counter electrodes on the efficiency of the dye-sensitized solar cells (DSSCs) was analyzed. The properties of the various Pt CEs were analyzed using scanning electron microscopy (SEM), surface area analysis, X-ray diffraction (XRD), electrochemical impedance spectroscopy (EIS), and cyclic voltammetry (CV). DSSCs with various Pt CEs were characterized using current density-voltage (J-V), incident photo-current conversion efficiency (IPCE), and EIS measurements. The results show that the power conversion efficiencies of these three types of DSSC devices were between 7.43% and 7.72%. The DSSCs based on the Pt electrode fabricated through electrochemical deposition exhibited the optimal power conversion efficiency. Because the processes of electrochemical deposition and chemical reduction do not require high-temperature sintering, these two methods are suitable for the fabrication of Pt on flexible plastic substrates.

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Investigation of Coral-Like Cu2O Nano/Microstructures as Counter Electrodes for Dye-Sensitized Solar Cells

Cited by 22 publications

References 39 publications

Dye-Sensitized Solar Cells: Fundamentals and Current Status

Dye-Sensitized Solar Cells: Fundamentals and Current Status

CuO and CuO/Graphene Nanostructured Thin Films as Counter Electrodes for Pt-Free Dye-Sensitized Solar Cells

Investigation of Electrochemically Deposited and Chemically Reduced Platinum Nanostructured Thin Films as Counter Electrodes in Dye-Sensitized Solar Cells

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