Electrodeposition of Cu2O: growth, properties, and applications

Brandt, Iuri S.; Tumelero, Milton A.; Pelegrini, Silvia; Zangari, Giovanni; Pasa, André A.

doi:10.1007/s10008-017-3660-x

Cited by 75 publications

(62 citation statements)

References 179 publications

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“…The resistivity data was fitted with Arrhenius equation and the activation energy is estimated to be 0.15 eV (supporting Figure S9). The activation energy is in good agreement with the reported values . The carrier concentration is increasing with the temperature within the range of 10 16 to 10 18 cm −3 .…”

Section: Electrical Properties Of Cu2o Synthesised Via Different Metsupporting

confidence: 89%

“…The activation energy is in good agreement with the reported values. [19,35] The carrier concentration is increasing with the temperature within the range of 10 16 to 10 18 cm À3 . The value at room temperature is similar to the earlier reports, where carrier concentration is measured via Mott-Scottky analysis.…”

mentioning

confidence: 99%

“…It should be noted that the electrical transport properties of electrodeposited Cu 2 O films, which are extensively used as photocathodes [4,5,10,18,19] do not feature in Table 1. Even though the carrier concentration of electrodeposited Cu 2 O has been obtained from the Mott-Schottky analysis, [20][21][22][23] the resistivity and the mobility cannot be measured with this technique.…”

mentioning

confidence: 99%

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Hall Mobility of As‐Grown Cu₂O Thin Films Obtained Via Electrodeposition on Patterned Au Substrates

Aggarwal

Das

Agarwal

et al. 2017

Physica Rapid Research Ltrs

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Additionally, the temperature dependent resistivity exhibits a negative slope that is characteristic of a semiconductor. Therefore, the measured electrical characteristics can be attributed to the electrodeposited Cu 2 O semiconductor film rather than the conductive substrate. This method can be applied for the Hall measurement of any other electrodeposited semiconductor by optimizing the line/space geometry of the conductive substrate.

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Section: Electrical Properties Of Cu2o Synthesised Via Different Metsupporting

confidence: 89%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Hall Mobility of As‐Grown Cu₂O Thin Films Obtained Via Electrodeposition on Patterned Au Substrates

Aggarwal

Das

Agarwal

et al. 2017

Physica Rapid Research Ltrs

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“…Besides their outstanding properties, they can be easily deposited by low-cost, solution-based methods. Methods like spray pyrolysis, chemical bath deposition and electrodeposition are very attractive, because they can be integrated in high-throughput manufacturing and often yield film qualities comparable to films deposited by vacuumbased methods [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…The material has a band gap of * 2 eV [15], which means that a maximum efficiency of 20% [16] (Shockley-Queisser limit) can be achieved. Cu 2 O is mainly prepared by Cu sheet oxidation at high temperatures ([ 1000°C) [17][18][19][20] and by electrochemical deposition (ECD) at temperatures well below 100°C [7,8,[21][22][23][24]. The first method is particularly energy-intensive, but delivers high power conversion efficiencies, with the current record being 8.1% [17].…”

Section: Introductionmentioning

confidence: 99%

Solution-processed all-oxide solar cell based on electrodeposited Cu2O and ZnMgO by spray pyrolysis

et al. 2018

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The paper reports on all-solution-processed, all-oxide solar cells, based on an electrodeposited Cu 2 O absorber. The transparent indium-doped zinc oxide (IZO) contact and buffer layers of zinc oxide or zinc magnesium oxide (Zn 1-x Mg x O) were fabricated by ultrasonic spray pyrolysis. The cells were completed with graphite paste top contacts. The focus was set on using exclusively environment-friendly and low-cost raw materials, deposited from aqueous solutions without organic solvents. The latter is especially important for spray pyrolysis, where high process temperatures restrict the use of flammable solvents. The developed spray pyrolysis recipes yielded conductive (25 X/sq.) and transparent IZO and various compositions of transparent Zn 1-x Mg x O layers, with a linear dependence of the energy band gap (3.28-3.50 eV) as a function of the Mg content (0-16 mol %), as seen for layers deposited by vacuum-based techniques. Solar cells with a Zn 0.88 Mg 0.12 O buffer showed an improved photovoltaic performance compared to cells with ZnO buffer or without buffer, reaching a power conversion efficiency of 0.67% with a short-circuit current density of 3.76 mA/cm 2 , an open-circuit voltage of 0.34 V and a fill factor of 52.7%. The study correlated the improved cell performance with structural and electronic properties of the heterojunction.

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Defect‐Assisted Electron Tunneling for Photoelectrochemical CO₂ Reduction to Ethanol at Low Overpotentials

Kan

Yang

Wang

et al. 2022

Advanced Energy Materials

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A Si/ZnO/Cu2O p‐n‐p heterojunction potential well with electron tunnels is fabricated for selective photoelectrochemical CO2 reduction to ethanol. This heterojunction is formed by growing n‐type ZnO nanosheets between defect‐rich p‐type Cu2O nanoparticles and nanoporous p‐type Si. Due to the existence of this potential well, the photogenerated electrons are trapped and accumulate inside n‐ZnO at low biases with the assistance of a ≈0.6 V built‐in potential, and escape into the Cu2O defect band. Under simulated sunlight, the Si/ZnO/Cu2O photocathode exhibits an onset potential of 0.2 V versus reversible hydrogen electrode (RHE) for aqueous photoelectrochemical CO2 reduction. Due to the confined electron energy in tunneling, the product selectivity is substantially tuned from CO or formate to ethanol, with an excellent Faradaic efficiency of ethanol over 60% at 0 V versus RHE.

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Electrodeposition of Cu2O: growth, properties, and applications

Cited by 75 publications

References 179 publications

Hall Mobility of As‐Grown Cu₂O Thin Films Obtained Via Electrodeposition on Patterned Au Substrates

Hall Mobility of As‐Grown Cu₂O Thin Films Obtained Via Electrodeposition on Patterned Au Substrates

Solution-processed all-oxide solar cell based on electrodeposited Cu2O and ZnMgO by spray pyrolysis

Defect‐Assisted Electron Tunneling for Photoelectrochemical CO₂ Reduction to Ethanol at Low Overpotentials

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Electrodeposition of Cu2O: growth, properties, and applications

Cited by 75 publications

References 179 publications

Hall Mobility of As‐Grown Cu2O Thin Films Obtained Via Electrodeposition on Patterned Au Substrates

Hall Mobility of As‐Grown Cu2O Thin Films Obtained Via Electrodeposition on Patterned Au Substrates

Solution-processed all-oxide solar cell based on electrodeposited Cu2O and ZnMgO by spray pyrolysis

Defect‐Assisted Electron Tunneling for Photoelectrochemical CO2 Reduction to Ethanol at Low Overpotentials

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About

Hall Mobility of As‐Grown Cu₂O Thin Films Obtained Via Electrodeposition on Patterned Au Substrates

Hall Mobility of As‐Grown Cu₂O Thin Films Obtained Via Electrodeposition on Patterned Au Substrates

Defect‐Assisted Electron Tunneling for Photoelectrochemical CO₂ Reduction to Ethanol at Low Overpotentials