Electrocatalytic Zinc Composites as the Efficient Counter Electrodes of Dye-Sensitized Solar Cells: Study on the Electrochemical Performances and Density Functional Theory Calculations

Li, Chun Ting; Chang, Hsuan; Li, Yu Yan; Huang, Yu-Lieh; Tsai, Yu Lin; Vittal, R.; Sheng, Yu Jane; Ho, Kuo–Chuan

doi:10.1021/acsami.5b07724

Cited by 45 publications

(18 citation statements)

References 66 publications

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“…Generally, Pt is the most commonly used CE material in DSSC, owing to its high catalytic activity and stability [27]. Various alternative CE materials such as carbon-based materials, metal oxides or chalcogenides, and alloys or intermetallics have been studied extensively [3,5,[28][29][30][31][32][33][34][35][36]. Composites containing Pt and Sn have been used as electrocatalysts for CEs of DSSCs [36,37], methanol or ethanol oxidation [38][39][40][41][42][43][44], aqueous phase oxidation [45], and gas sensing [46].…”

Section: Introductionmentioning

confidence: 99%

Time Evolution Characterization of Atmospheric-Pressure Plasma Jet (APPJ)-Synthesized Pt-SnOx Catalysts

Lee

Huang

Cheng

et al. 2018

Metals

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We characterize the time evolution (≤120 s) of atmospheric-pressure plasma jet (APPJ)-synthesized Pt-SnOx catalysts. A mixture precursor solution consisting of chloroplatinic acid and tin(II) chloride is spin-coated on fluorine-doped tin oxide (FTO) glass substrates, following which APPJ is used for converting the spin-coated precursors. X-ray photoelectron spectroscopy (XPS) indicates the conversion of a large portion of metallic Pt and a small portion of metallic Sn (most Sn is in oxidation states) from the precursors with 120 s APPJ processing. The dye-sensitized solar cell (DSSC) efficiency with APPJ-synthesized Pt-SnOx CEs is improved greatly with only 5 s of APPJ processing. Electrochemical impedance spectroscopy (EIS) and Tafel experiments confirm the catalytic activities of Pt-SnOx catalysts. The DSSC performance can be improved with a short APPJ processing time, suggesting that a DC-pulse nitrogen APPJ can be an efficient tool for rapidly synthesizing catalytic Pt-SnOx counter electrodes (CEs) for DSSCs.

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Section: Introductionmentioning

confidence: 99%

Time Evolution Characterization of Atmospheric-Pressure Plasma Jet (APPJ)-Synthesized Pt-SnOx Catalysts

Lee

Huang

Cheng

et al. 2018

Metals

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“…The other is to engineer the structure of the electrocatalyst for I 3 − reduction with regard to the charge transfer route and the surface area. To replace a traditional platinum (Pt) electrocatalyst, where Pt is a rare and expensive element, several types of materials, such as carbon materials [5,[12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28], conductive polymers [29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48], and transition metal compounds [37,45, have been extensively explored to elevate the cell efficiency (η) and decrease the cost of the CEs.…”

Section: Dye-sensitized Solar Cells (Dsscs)mentioning

confidence: 99%

Structural Engineering on Pt-Free Electrocatalysts for Dye-Sensitized Solar Cells

Huang¹,

Chen²,

Ann³

et al. 2020

Nanostructures

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In recent decades, plenty of nanomaterials have been investigated as electrocatalysts for the replacement of the expensive platinum (Pt) counter electrode in dyesensitized solar cells (DSSCs). The key function of the electrocatalyst is to reduce tri-iodide ions to iodide ions at the electrolyte/counter electrode interface. The performance of the electrocatalyst is usually determined by two key factors, i.e., the intrinsic heterogeneous rate constant and the effective electrocatalytic surface area of the electrocatalyst. The intrinsic heterogeneous rate constant of the electrocatalyst varies by different types of materials, which can be roughly divided into five groups: non-Pt metals, carbons, conducting polymers, transition metal compounds, and their composites. The effective electrocatalytic surface area is determined by the nanostructure of the electrocatalyst. In this chapter, the nanostructural design and engineering on different types of Pt-free electrocatalysts will be systematically introduced. Also, the relationship between various nanostructures of electrocatalysts and the pertinent physical/electrochemical properties will be discussed.

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“…[80] The CE was prepared by blending commercial Zn 3 N 2 with PE-DOT:PSS,w hich served as both conductive binder and electrocatalyst, followed by drop-casting of the mixture ontoi ndium tin oxide (ITO)/glass substrate. Ho et al first introduced zinc nitride (Zn 3 N 2 )i ntoD SCs.…”

Section: Other Nitride Materialsmentioning

confidence: 99%

“…Ho et al first introduced zinc nitride (Zn 3 N 2 )i ntoD SCs. [80] The CE was prepared by blending commercial Zn 3 N 2 with PE-DOT:PSS,w hich served as both conductive binder and electrocatalyst, followed by drop-casting of the mixture ontoi ndium tin oxide (ITO)/glass substrate. By controlling the ratio of Zn 3 N 2 to PEDOT:PSS, PCE values up to 8.73 %w ere obtained;t his value was superior to that of 8.59 %f or Pt measured under the same experimental conditions.…”

Section: Other Nitride Materialsmentioning

confidence: 99%

“…In 2015, Sung et al prepared Ni 2 Nf ilms on FTO/glass by reactive sputtering of Ni under aN 2 atmosphere and used the prepared electrodes as CEs of QDSCs. [72] Dendritic nanostructures developed (Figure 9e and f), due to the rough surface of [80] Copyright 2015, American ChemicalS ociety. ChemSusChem 2019, 12,772 -786 www.chemsuschem.org FTO/glass substrates.…”

Section: Qdscsmentioning

confidence: 99%

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Recent Progress in the Design and Synthesis of Nitrides for Mesoscopic and Perovskite Solar Cells

Kang

Sung

2019

ChemSusChem

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With growing concerns about global warming and the energy crisis, a variety of photovoltaic devices have attracted worldwide attention as alternative energy sources. Among them, organic–inorganic hybrid photovoltaics, typically mesoscopic and perovskite solar cells, are promising, owing to their potential for low‐cost energy production, which mainly comes from unlimited combinations of materials optimized for each step of solar energy conversion. However, the commercialization of organic–inorganic hybrid solar cells is hampered by costly electrocatalysts or hole‐transport materials. Currently, state‐of‐the‐art dye‐ or quantum‐dot‐sensitized solar cells and perovskite solar cells necessitate noble metals and high‐price polymeric materials. In an attempt to resolve this issue, various kinds of metal compounds have been investigated, and nitrides have been actively reported to possess a number of favorable properties for the aforementioned purpose, such as excellent electrical conductivity and superb electrocatalytic performance. Herein, the use of nitrides as cost‐effective electrocatalysts or hole‐transport materials in organic–inorganic hybrid solar cells is reviewed. Nitrides with a variety of morphologies and scales are discussed, together with the synergistic effect in the case of diverse composites. In addition, prospects and challenges for applying nitride materials are briefly suggested.

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Electrocatalytic Zinc Composites as the Efficient Counter Electrodes of Dye-Sensitized Solar Cells: Study on the Electrochemical Performances and Density Functional Theory Calculations

Cited by 45 publications

References 66 publications

Time Evolution Characterization of Atmospheric-Pressure Plasma Jet (APPJ)-Synthesized Pt-SnOx Catalysts

Time Evolution Characterization of Atmospheric-Pressure Plasma Jet (APPJ)-Synthesized Pt-SnOx Catalysts

Structural Engineering on Pt-Free Electrocatalysts for Dye-Sensitized Solar Cells

Recent Progress in the Design and Synthesis of Nitrides for Mesoscopic and Perovskite Solar Cells

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