High energy storage density of conductive filler composites at low electric fields through sandwich design

Wang, Zhuo; Wu, Dan; Kong, Menglei; Li, Yanxin; Yi, Zhihui

doi:10.1007/s10854-022-09523-9

Cited by 3 publications

(2 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A sharp EPR signal located at g‐value of 2.003 is detected in both films, demonstrating the existence of sulfur vacancies. [ 32–34 ] Notably, the TAA–MnS sample exhibits an attenuated signal intensity compared with CT–MnS, further verifying the decrease in V S defects after the TAA sulfurization.…”

Section: Resultsmentioning

confidence: 69%

Manipulating the Intrinsic Defect of MnS by Surface Sulfidation for Inverted Sb₂(S,Se)₃ Planar‐Heterojunction Solar Cells

Yang,

Wang,

Che

et al. 2024

Solar RRL

View full text Add to dashboard Cite

For the emerging Sb2(S,Se)3 solar cells, most high‐efficiency devices employ a standard structure based on the heterojunction of weak n‐type Sb2(S,Se)3 and heavily n‐doped cadmium sulfide (CdS), and the sunlight is incident from the n‐type CdS side in either superstrate or substrate structure. The weak carrier extraction ability of the n‐n heterojunction as well as the parasitic absorption and toxicity from CdS further limit the efficiency improvement and practical applications. Herein, for the first time we demonstrate a strategy of treating manganese sulfide (MnS) by thioacetamide to enhance its p‐type conductivity, and construct a solar cell with inverted structure by forming a heterojunction with n‐type Sb2(S,Se)3. This inverted structure well overcomes the light absorption loss and toxicity elements in the standard structure. We also reveal that this post‐treatment effectively passivates the sulfur vacancy defects of MnS and in turn enables greater band bending in the heterojunctions for suppressed non‐radiative recombination. Ultimately, the hole extraction ability of MnS shows essential improvement and enables a power conversion efficiency of 5.22% for the inverted‐Sb2(S,Se)3 solar cell. This study provides a proof‐of‐concept device structure for the preparation of high‐efficiency Sb2(S,Se)3 solar cells and offers new perspectives to achieve effective intrinsic doping of metal chalcogenides.This article is protected by copyright. All rights reserved.

show abstract

Section: Resultsmentioning

confidence: 69%

Manipulating the Intrinsic Defect of MnS by Surface Sulfidation for Inverted Sb₂(S,Se)₃ Planar‐Heterojunction Solar Cells

Yang,

Wang,

Che

et al. 2024

Solar RRL

View full text Add to dashboard Cite

show abstract

“…However, this method often necessitates a substantial filler content, thereby potentially compromising the mechanical properties of the composite. The second approach involves the addition of conductive fillers, such as ferroelectric oxide (Fe 3 O 4 ) [ 22 , 23 ], graphene (GNs) [ 24 , 25 , 26 ], carbon nanotubes (CNTs) [ 27 ], MXene [ 28 , 29 ], etc. Among these alternatives, Fe 3 O 4 exhibits more promising characteristics as a filler.…”

Section: Introductionmentioning

confidence: 99%

Achieving Excellent Dielectric and Energy Storage Performance in Core-Double-Shell-Structured Polyetherimide Nanocomposites

et al. 2023

View full text Add to dashboard Cite

The development of pulse power systems and electric power transmission systems urgently require the innovation of dielectric materials possessing high-temperature durability, high energy storage density, and efficient charge–discharge performance. This study introduces a core-double-shell-structured iron(II,III) oxide@barium titanate@silicon dioxide/polyetherimide (Fe3O4@BaTiO3@SiO2/PEI) nanocomposite, where the highly conductive Fe3O4 core provides the foundation for the formation of microcapacitor structures within the material. The inclusion of the ferroelectric ceramic BaTiO3 shell enhances the composite’s polarization and interfacial polarization strength while impeding free charge transfer. The outer insulating SiO2 shell contributes excellent interface compatibility and charge isolation effects. With a filler content of 9 wt%, the Fe3O4@BaTiO3@SiO2/PEI nanocomposite achieves a dielectric constant of 10.6, a dielectric loss of 0.017, a high energy density of 5.82 J cm−3, and a charge–discharge efficiency (η) of 72%. The innovative aspect of this research is the design of nanoparticles with a core-double-shell structure and their PEI-based nanocomposites, effectively enhancing the dielectric and energy storage performance. This study provides new insights and experimental evidence for the design and development of high-performance dielectric materials, offering significant implications for the fields of electronic devices and energy storage.

show abstract

Structural design and enhanced energy density of Ba0.6Sr0.4TiO3/PVDF nanocomposites with multilayer gradient structure

Liu,

Wang,

et al. 2024

Ceramics International

View full text Add to dashboard Cite

High energy storage density of conductive filler composites at low electric fields through sandwich design

Cited by 3 publications

References 41 publications

Manipulating the Intrinsic Defect of MnS by Surface Sulfidation for Inverted Sb₂(S,Se)₃ Planar‐Heterojunction Solar Cells

Manipulating the Intrinsic Defect of MnS by Surface Sulfidation for Inverted Sb₂(S,Se)₃ Planar‐Heterojunction Solar Cells

Achieving Excellent Dielectric and Energy Storage Performance in Core-Double-Shell-Structured Polyetherimide Nanocomposites

Structural design and enhanced energy density of Ba0.6Sr0.4TiO3/PVDF nanocomposites with multilayer gradient structure

Contact Info

Product

Resources

About

High energy storage density of conductive filler composites at low electric fields through sandwich design

Cited by 3 publications

References 41 publications

Manipulating the Intrinsic Defect of MnS by Surface Sulfidation for Inverted Sb2(S,Se)3 Planar‐Heterojunction Solar Cells

Manipulating the Intrinsic Defect of MnS by Surface Sulfidation for Inverted Sb2(S,Se)3 Planar‐Heterojunction Solar Cells

Achieving Excellent Dielectric and Energy Storage Performance in Core-Double-Shell-Structured Polyetherimide Nanocomposites

Structural design and enhanced energy density of Ba0.6Sr0.4TiO3/PVDF nanocomposites with multilayer gradient structure

Contact Info

Product

Resources

About

Manipulating the Intrinsic Defect of MnS by Surface Sulfidation for Inverted Sb₂(S,Se)₃ Planar‐Heterojunction Solar Cells

Manipulating the Intrinsic Defect of MnS by Surface Sulfidation for Inverted Sb₂(S,Se)₃ Planar‐Heterojunction Solar Cells