Cathodic electrodeposition of p-CuSCN nanorod and its dye-sensitized photocathodic property

Sun, Lina; Ichinose, Keigo; Sekiya, Tomohiro; Sugiura, T.; Yoshida, Tsukasa

doi:10.1016/j.phpro.2011.05.005

Cited by 26 publications

(39 citation statements)

References 23 publications

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“…[42] In 2011, Sun et al demonstrated that arrayed nanorods of CuSCN can be electrodeposited from solution onto conducting substrates. [43] The nanostructure is nearly identical to the ZnO scaffold used extensively in solar-cell research, as can be seen in Figure 1 b. These CuSCN nanorod scaffolds will provide a “hole-mobility-enhancing” test structure for solar cells.…”

Section: Resultsmentioning

confidence: 86%

“…[43] An ITO (10 Ω sq. −1 , Lumtec) coated glass (20×25×0.7 mm) patterned for four cells was used as the substrate.…”

Section: Methodsmentioning

confidence: 99%

“…Highly oriented CuSCN nanorods were obtained by electrodeposition according to the method described in the literature. [43] An ITO (10 W sq. À1 , Lumtec) coated glass (20 25 0.7 mm) patterned for four cells was used as the substrate.…”

Section: Electrodeposition Of Cuscn Nanorodsmentioning

confidence: 99%

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Substrate‐Oriented Nanorod Scaffolds in Polymer–Fullerene Bulk Heterojunction Solar Cells

et al. 2014

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The use of a p-type inorganic semiconductor to form a nanorod scaffold within a polymer-fullerene bulk heterojunction solar cell is reported. The performance of this cell is compared to those made of the commonly used n-type scaffold of ZnO, which has been reported many times in the literature. The scaffold is designed to improve charge-carrier collection by increased mobility in thicker samples. Observations show that generally the device performance shows a negative correlation to nanorod length. By using CuSCN as a p-type inorganic scaffold, a very similar trend is observed.

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Section: Resultsmentioning

confidence: 86%

“…[43] An ITO (10 Ω sq. −1 , Lumtec) coated glass (20×25×0.7 mm) patterned for four cells was used as the substrate.…”

Section: Methodsmentioning

confidence: 99%

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Substrate‐Oriented Nanorod Scaffolds in Polymer–Fullerene Bulk Heterojunction Solar Cells

et al. 2014

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“…10 Rhodamine B is commercially provided as chloride and is well-soluble both to water and ethanol. However, RB could not be dissolved above ca.…”

Section: Resultsmentioning

confidence: 99%

“…7 In aqueous solutions, only a 1-to-1 complex is formed, 7 while a neutral 1-to-2 complex is also formed and participates in the electrochemical reaction in ethanolic solutions containing excess of SCN – . 10 Thus, the overall reaction is expressed by eq 1 for the aqueous solution and both eqs 1 and 2 operate in the ethanolic solution.The chronoamperograms measured during the electrodeposition can be seen in Figure 1. Following the initial rise of the current, diffusion-limited steady-state current is reached both for the Cu 2+ rich and SCN – rich solutions.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical Self-Assembly of Nanostructured CuSCN/Rhodamine B Hybrid Thin Film and Its Dye-Sensitized Photocathodic Properties

et al. 2014

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Nanostructured hybrid thin films of CuSCN and rhodamine B (RB) are electrochemically self-assembled (ESA) by cathodic electrolysis in an ethanol/water mixture containing Cu2+, SCN–, and RB. By selecting the solvent, Cu2+/SCN– ratio, and the concentration of RB, we demonstrate several control parameters in the film formation. High loading of RB into the film has been achieved to reach a CuSCN:RB volume ratio of approximately 2:1. The RB solid could almost completely be extracted from the hybrid film by soaking the film in dimethylacetamide (DMA), leading to a large increase of the surface area. The crystallographic orientation of the nanostructure with respect to the substrate can be controlled. Efficient quenching of fluorescence of RB has been observed for the CuSCN/RB hybrid film, implying hole injection from RB excited state to CuSCN. Photoelectrochemical study on the porous crystalline CuSCN obtained after the DMA treatment and sensitized with RB revealed sensitized photocathodic action under visible light illumination, indicating the potential usefulness of the porous CuSCN electrodes for construction of tandem dye-sensitized solar cells.

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Tuning of morphological, crystallographic, and optoelectronic properties of CuSCN by electrodeposition

et al. 2023

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Electrodeposition of copper(I) thiocyanate (CuSCN) thin films has been studied in a methanolic solution on variation of the precursor ratio to control morphological, crystallographic, and optoelectronic features of the product. While the one from a stoichiometric bath containing [Cu2+]: [SCN−] = 1:1 results in a randomly oriented crystalline β‐CuSCN, that from a Cu‐rich bath strongly orient the c‐axis perpendicular to the substrate, whereas that from SCN‐rich in parallel. The Cu‐rich film is dense and transparent, whereas the other two are hazy. All of them have an optical bandgap of about 3.6 eV as typically expected for β‐CuSCN, but their p‐type doping level varied to increase the work function from 5.31 to 5.66 eV on increasing the SCN− content, as found by photoelectron yield spectroscopy. This was caused by stabilization of Cu2+ acceptor level in the presence of excess SCN−, as also supported by an enhanced photoluminescence from the d‐d transition of Cu2+ state of such a film. Thus, electrodeposition has proven its usefulness to tailor‐tune optoelectronic properties on demand for device applications.

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Cathodic electrodeposition of p-CuSCN nanorod and its dye-sensitized photocathodic property

Cited by 26 publications

References 23 publications

Substrate‐Oriented Nanorod Scaffolds in Polymer–Fullerene Bulk Heterojunction Solar Cells

Substrate‐Oriented Nanorod Scaffolds in Polymer–Fullerene Bulk Heterojunction Solar Cells

Electrochemical Self-Assembly of Nanostructured CuSCN/Rhodamine B Hybrid Thin Film and Its Dye-Sensitized Photocathodic Properties

Tuning of morphological, crystallographic, and optoelectronic properties of CuSCN by electrodeposition

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