Synthesis and characterization of SbSI modified g-C3N4 composite for photocatalytic and energy storage applications

Justinabraham, Romiyo; Subramanian, Sowmya; Durairaj, Arulappan; Thangavel, S.; Wesley, Ramachandran John; Vijaikanth, Vijendran; Vasanthkumar, Samuel

doi:10.1016/j.jallcom.2022.168115

Cited by 10 publications

(5 citation statements)

References 64 publications

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“…As illustrated in figure 2(a), the glass substrate exhibited a significant light absorption property, leading to a nearly negligible transmittance in the 1000-2200 cm −1 range for both samples. Both films displayed a vibration peak in the range of 3000-3500 cm −1 , which is linked to the adsorption of -OH on the surface [27]. Notably, the 6-U-T sample displayed two discernible minor peaks at 3270 cm −1 and 3411 cm −1 , respectively, which are attributed to -NH 2 in g-C 3 N 4 [27,28].…”

Section: Resultsmentioning

confidence: 96%

“…Both films displayed a vibration peak in the range of 3000-3500 cm −1 , which is linked to the adsorption of -OH on the surface [27]. Notably, the 6-U-T sample displayed two discernible minor peaks at 3270 cm −1 and 3411 cm −1 , respectively, which are attributed to -NH 2 in g-C 3 N 4 [27,28]. This observation suggests that g-C 3 N 4 was successfully introduced via urea.…”

Section: Resultsmentioning

confidence: 99%

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A simple strategy to obtain graphitic carbon nitride modified TiO₂ layer for efficient perovskite solar cells

Guo,

Zhao,

et al. 2023

Nanotechnology

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The power conversion efficiency (PCE) of perovskite solar cells (PSCs) can be improved through the concurrent strategies of enhancing charge transfer and passivating defects. Graphite carbon nitride (g-C3N4) has been demonstrated as a promising modifier for optimizing energy level alignment and reducing defect density in PSCs. However, its preparation process can be complicated. A simple one-step calcination approach was used in this study to prepare g-C3N4-modified TiO2 via the incorporation of urea into the TiO2 precursor. This modification simultaneously tunes the energy level alignment and passivates interface defects. The comprehensive research confirms that the addition of moderate amounts of g-C3N4 to TiO2 results in an ideal alignment of energy levels with perovskite, thereby enhancing the ability to separate and transfer charges. Additionally, the g-C3N4-modified perovskite films exhibit an increase in grain size and crystallinity, which reduces intrinsic defects density and extends charge recombination time. Therefore, the g-C3N4-modified PSC achieves a champion PCE of 20.00%, higher than that of the control PSC (17.15%). Our study provides a systematic comprehension of the interfacial engineering strategy and offers new insights into the development of high-performance PSCs.

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Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

A simple strategy to obtain graphitic carbon nitride modified TiO₂ layer for efficient perovskite solar cells

Guo,

Zhao,

et al. 2023

Nanotechnology

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“…In eqn (10) above, H is the Kohn-Sham (KS) Hamiltonian, 28,29 hj j |r RI H|j k i can be regarded as electronphonon couplings, e j and e k are the eigenvalues for the adiabatic KS states j and k, respectively, and : R I is the velocity of nuclei I.…”

Section: Theoretical and Computational Detailsmentioning

confidence: 99%

“…9 In addition, SbSI-modified g-C 3 N 4 composites for photocatalytic and energystorage applications have been reported. 10 Bafekry et al 11 have studied the optical and thermoelectric properties from theoretical perspectives for the SbXY family, but they did not explore the unusual properties that the double-layer structure of SbXY monolayers may impart to the heterojunction. Overall, the knowledge of the physical properties of MXY heterostructures is still very limited.…”

Section: Introductionmentioning

confidence: 99%

Two-dimensional Janus SbTeBr/SbSI heterostructures as multifunctional optoelectronic systems with efficient carrier separation

Liu,

Yang,

Zheng

2024

Phys. Chem. Chem. Phys.

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“…Chalcohalide − materials are just in the conception stage of this new discipline of multi-anion materials as photocatalysts compared to other multi-element compound semiconductors (Figure ). Chalcohalides are usually denoted as MCH, where M stands for one or more metal ions, C stands for chalcogenide, and H stand for halide ions.…”

Section: Introductionmentioning

confidence: 99%

Nanostructured Metal Chalcohalide Photocatalysts: Crystal Structures, Synthesis, and Applications

Shyamal,

Pradhan

2023

ACS Energy Lett.

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Nanocrystals of all-inorganic metal chalcohalides having a combination of chalcogen and halogen anions with appropriate crystal structure and bandgap can be ideal semiconductors in comparison to the well-established multicomponent family of nanostructures. These materials are one of the overlooked semiconductors which could play a paramount role in photocatalysis due to their stability, low-dimensional (1D) structure, and suitable bandgaps with efficient light-responsive nature. Emphasizing these materials, in this Review, recent developments in the design and application of different chalcohalide nanostructures are reported. The initial part is focused on the syntheses and crystal structures of reported chalcohalide materials, followed by an overview of their photocatalytic applications in different aspects. Finally, the successes and challenges associated with the future progress using these materials are discussed. This Review will provide an extended understanding and offer a preferred direction for the innovative design of these materials for environmental and especially energy-based applications.

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Synthesis and characterization of SbSI modified g-C3N4 composite for photocatalytic and energy storage applications

Cited by 10 publications

References 64 publications

A simple strategy to obtain graphitic carbon nitride modified TiO₂ layer for efficient perovskite solar cells

A simple strategy to obtain graphitic carbon nitride modified TiO₂ layer for efficient perovskite solar cells

Two-dimensional Janus SbTeBr/SbSI heterostructures as multifunctional optoelectronic systems with efficient carrier separation

Nanostructured Metal Chalcohalide Photocatalysts: Crystal Structures, Synthesis, and Applications

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Synthesis and characterization of SbSI modified g-C3N4 composite for photocatalytic and energy storage applications

Cited by 10 publications

References 64 publications

A simple strategy to obtain graphitic carbon nitride modified TiO2 layer for efficient perovskite solar cells

A simple strategy to obtain graphitic carbon nitride modified TiO2 layer for efficient perovskite solar cells

Two-dimensional Janus SbTeBr/SbSI heterostructures as multifunctional optoelectronic systems with efficient carrier separation

Nanostructured Metal Chalcohalide Photocatalysts: Crystal Structures, Synthesis, and Applications

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A simple strategy to obtain graphitic carbon nitride modified TiO₂ layer for efficient perovskite solar cells

A simple strategy to obtain graphitic carbon nitride modified TiO₂ layer for efficient perovskite solar cells