An alternative of NiCoSe doped graphene hybrid La6W2O15 for renewable energy conversion used in dye-sensitized solar cells

Areerob, Yonrapach; Cho, Ju Yong; Jang, Won Kweon; Cho, Kwang Youn; Oh, Won-Chun

doi:10.1016/j.ssi.2018.10.026

Cited by 6 publications

(3 citation statements)

References 22 publications

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“…in order to maximize the performance of DSSC. Areerob and his co-workers synthesized a graphene-La 6 W 2 O 15 doped NiCoSe quantum dot nanosheet as the counter electrode of the device. The results of electrochemical impedance showed that the nanosheet had excellent electrocatalytic properties and low resistance to charge transfer at the interface.…”

Section: Introductionmentioning

confidence: 99%

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Second-Order Nonlinear Optical Switch Manipulation of Photosensitive Layer by an External Electric Field Coupled with Graphene Quantum Dots

Wang

Song

et al. 2019

J. Phys. Chem. A

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The main purpose of this work is to explore the effect of graphene quantum dots (GR) filling the photosensitive layer. The multibranched dye JH-1 as the photoactive layer material was used to analyze the non-negligible role of graphene quantum dots from the perspectives of optimized structure, electrochemical parameters, optical properties, nonlinear optical (NLO) switch, and external electric field. The results demonstrated that the graphene quantum dots not only improve the optical properties of solar cells but also control the electron transfer in the photosensitive layer molecules under the manipulation of a specific external electric field. When the external electric field intensity is below 20 × 10 −4 au, the excess electron orbital does not change. When the external electric field reaches 25 × 10 −4 au, the excess electron orbital on the graphene quantum dots evolves. This discovery allows the electron transfer from the photosensitive layer, which should be controlled by the NLO switch. In addition, the optical properties of sensitizers showed regular evolution in the external electric field, which provides an effective way to improve the performance. Comprehensive analysis indicated that the doping of graphene quantum dots with the photosensitive layer can be used as a new way to improve the photoelectric conversion efficiency of solar cells.

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Section: Introductionmentioning

confidence: 99%

“…in order to maximize the performance of DSSC. Areerob and his coworkers17 synthesized a graphene-La 6 W 2 O 15 doped NiCoSe quantum dot nanosheet as the counter electrode of the device.…”

mentioning

confidence: 99%

Second-Order Nonlinear Optical Switch Manipulation of Photosensitive Layer by an External Electric Field Coupled with Graphene Quantum Dots

Wang

Song

et al. 2019

J. Phys. Chem. A

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“…35 R ct is of primary interest because it represents the electron flow during reduction of I 3 at the CE. 36 In the case of MCS, the R ct value of 82.77 Ω cm 2 was higher than that of G/MCS because of its high band gap energy, which is an obstacle to the movement of electrons. This is the main reason why these cells are less effective than those with graphene-GA material added.…”

Section: ■ Resultsmentioning

confidence: 99%

A New Aspect for Band Gap Energy of Graphene-Mg₂CuSnCoO₆-Gallic Acid as a Counter Electrode for Enhancing Dye-Sensitized Solar Cell Performance

Areerob

2019

ACS Appl. Mater. Interfaces

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To develop counter electrodes (CEs) for dye-sensitized solar cells (DSSCs), band gap energy of quaternary semiconductor materials is of great interest. In the present study, a novel graphene sheet based on Mg2CuSnCoO6-Gallic acid nanomaterials (G/MCS@Gallic) was modified with a new Joule heating method, and a laser was applied for measuring band gap energy. Synergistic effect between graphene and Mg2CuSnCoO6-Gallic ensured excellent electron transport through the electrode and low band gap energy. The large surface area of the hybrid graphene materials rivaled the catalytic capability for iodide reduction. DSSCs achieved a maximum photoelectric conversion efficiency of 13.30% based on the 10% G/MCS@Gallic CE, which was higher than the platinum conversion efficiency. Thus, G/MCS@Gallic provides a novel, inexpensive, high-performance, and flexible cathode for solar cell applications.

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Modeling dye-sensitized solar cells with graphene based on nanocomposites in the Brillouin zone and density functional theory

Areerob

2020

J. Korean Ceram. Soc.

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An alternative of NiCoSe doped graphene hybrid La6W2O15 for renewable energy conversion used in dye-sensitized solar cells

Cited by 6 publications

References 22 publications

Second-Order Nonlinear Optical Switch Manipulation of Photosensitive Layer by an External Electric Field Coupled with Graphene Quantum Dots

Second-Order Nonlinear Optical Switch Manipulation of Photosensitive Layer by an External Electric Field Coupled with Graphene Quantum Dots

A New Aspect for Band Gap Energy of Graphene-Mg₂CuSnCoO₆-Gallic Acid as a Counter Electrode for Enhancing Dye-Sensitized Solar Cell Performance

Modeling dye-sensitized solar cells with graphene based on nanocomposites in the Brillouin zone and density functional theory

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An alternative of NiCoSe doped graphene hybrid La6W2O15 for renewable energy conversion used in dye-sensitized solar cells

Cited by 6 publications

References 22 publications

Second-Order Nonlinear Optical Switch Manipulation of Photosensitive Layer by an External Electric Field Coupled with Graphene Quantum Dots

Second-Order Nonlinear Optical Switch Manipulation of Photosensitive Layer by an External Electric Field Coupled with Graphene Quantum Dots

A New Aspect for Band Gap Energy of Graphene-Mg2CuSnCoO6-Gallic Acid as a Counter Electrode for Enhancing Dye-Sensitized Solar Cell Performance

Modeling dye-sensitized solar cells with graphene based on nanocomposites in the Brillouin zone and density functional theory

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Product

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A New Aspect for Band Gap Energy of Graphene-Mg₂CuSnCoO₆-Gallic Acid as a Counter Electrode for Enhancing Dye-Sensitized Solar Cell Performance