Effect of deposition potential on efficiency of TiO2/Cu2O photoelectrochemical cells

Pagare, Pavan K.; Torane, A. P.

doi:10.1007/s10854-018-8860-3

Cited by 6 publications

(2 citation statements)

References 27 publications

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“…The crystallite size ( D ) of Bi 2 O 3 are determined by the Debye Scherrer's equation:

D = 0.9 λ / β \cos θ

where D is crystallite size, θ is the Bragg's angle, β is full width at half maximum of the peak in radian, λ is the wavelength of X‐ray used, and 0.9 is a constant. The average crystallite size of Bi 2 O 3 films is found to be ≈24.56 nm.…”

Section: Resultsmentioning

confidence: 99%

Preparation of Bismuth Oxide Thin Films by Spray Pyrolysis Method and Its Characterizations

Jadhav¹,

Pagare²,

Inamdar³

et al. 2019

Macromolecular Symposia

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The Bi2O3 thin films were prepared onto glass substrates by spray pyrolysis method. The Bi2O3 thin films optimized at 320 °C spray pyrolysis temperature. The crystal structure, crystallite size, and surface morphology of Bi2O3 thin films were studied by X‐ray diffraction (XRD) and scanning electron microscopy (SEM) techniques, respectively. The X‐ray diffraction pattern of Bi2O3 thin films show polycrystalline in nature. The SEM images show porous morphology of Bi2O3 thin films. The optical absorption spectra of films were examined in order to study their band gap energy. The optical study shows a direct band gap of 2.90 eV for Bi2O3 films.

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“…The crystallite size ( D ) of Bi 2 O 3 are determined by the Debye Scherrer's equation:

D = 0.9 λ / β \cos θ

Section: Resultsmentioning

confidence: 99%

Preparation of Bismuth Oxide Thin Films by Spray Pyrolysis Method and Its Characterizations

Jadhav¹,

Pagare²,

Inamdar³

et al. 2019

Macromolecular Symposia

Self Cite

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“…In addition, the specific content of Cu 2 O─S in the 7% Cu 2 O-S@GO@Zn 0.67 Cd 0.33 S (7% CSGZCS) heterojunction was determined to be ≈6.79 wt.% by ICP-MS. As shown in Figure S2A, Supporting Information, the characteristic Raman peaks of Cu 2 O and Cu 2 O─S were observed at 149, 200, 218, 405, and 630 cm −1 . [33] The Raman spectrum of 7% CSGZCS showed characteristic peaks at 212 and 406 cm −1 (Figure S2A, Supporting Information), which were not observed in the spectrum of pure ZCS, indicating the presence of Cu 2 O─S in the heterojunction.…”

Section: Materials Characterizationsmentioning

confidence: 99%

Rational Design of Three Dimensional Hollow Heterojunctions for Efficient Photocatalytic Hydrogen Evolution Applications

Pan,

Wang,

et al. 2024

Advanced Science

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The efficiency of photocatalytic hydrogen evolution is currently limited by poor light adsorption, rapid recombination of photogenerated carriers, and ineffective surface reaction rate. Although heterojunctions with innovative morphologies and structures can strengthen built‐in electric fields and maximize the separation of photogenerated charges. However, how to rational design of novel multidimensional structures to simultaneously improve the above three bottleneck problems is still a research imperative. Herein, a unique Cu2O─S@graphene oxide (GO)@Zn0.67Cd0.33S Three dimensional (3D) hollow heterostructure is designed and synthesized, which greatly extends the carrier lifetime and effectively promotes the separation of photogenerated charges. The H2 production rate reached 48.5 mmol g−1 h−1 under visible light after loading Ni2+ on the heterojunction surface, which is 97 times higher than that of pure Zn0.67Cd0.33S nanospheres. Furthermore, the H2 production rate can reach 77.3 mmol g−1 h−1 without cooling, verifying the effectiveness of the photothermal effect. Meanwhile, in situ characterization and density flooding theory calculations reveal the efficient charge transfer at the p‐n 3D hollow heterojunction interface. This study not only reveals the detailed mechanism of photocatalytic hydrogen evolution in depth but also rationalizes the construction of superior 3D hollow heterojunctions, thus providing a universal strategy for the materials‐by‐design of high‐performance heterojunctions.

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Photoelectric conversion enhancement of Ag modified p-type Cu2O/n-type ZnO transparent heterojunction device

Zhao

Pan

Wang

et al. 2018

J Mater Sci: Mater Electron

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Effect of deposition potential on efficiency of TiO2/Cu2O photoelectrochemical cells

Cited by 6 publications

References 27 publications

Preparation of Bismuth Oxide Thin Films by Spray Pyrolysis Method and Its Characterizations

Preparation of Bismuth Oxide Thin Films by Spray Pyrolysis Method and Its Characterizations

Rational Design of Three Dimensional Hollow Heterojunctions for Efficient Photocatalytic Hydrogen Evolution Applications

Photoelectric conversion enhancement of Ag modified p-type Cu2O/n-type ZnO transparent heterojunction device

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