Hybrid thin films of graphene nanowhiskers and amorphous carbon as transparent conductors

Xiao, Li; Li, Chunyan; Zhu, Hongwei; Wang, Kunlin; Wei, Jinquan; Li, Xinming; Xu, Eryang; Li, Zhen; Luo, Shu; Lei, Yu; Wu, Dehai

doi:10.1039/c002092c

Cited by 33 publications

(19 citation statements)

References 18 publications

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“…To evaluate this, we designed the p-n junction solar cells using the BG fi lm and n-Si. As shown in the dark current density-voltage ( J -V ) curves ( Figure 5 c), similar to the graphene/n-Si (G/Si) cell, [30][31][32] the BG/Si cell also exhibits the typical rectifying behavior of a welldefi ned diode but with a lower turn-on voltage and a higher high-rectifi cation ratio in the voltage range over 0.5 V. The photovoltaic properties of the BG/Si solar cells were characterized under air mass 1.5 (AM 1.5) illumination. Figure 5 a,b show the energy-band diagrams of BG, n-Si, and the bottom electrode (Ti/Pd/Ag), and the equilibrium band diagram of BG/Si p-n junction, respectively.…”

supporting

confidence: 53%

Boron Doping of Graphene for Graphene–Silicon p–n Junction Solar Cells

Fan

et al. 2012

Advanced Energy Materials

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179

108

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The modulation of the electrical properties of graphene is essential to realize graphene‐based electronics. Boron‐doped p‐type graphene films with band gaps of ∼50 meV are prepared by chemical vapor deposition using ethanol and boron powder as the precursors. Under AM 1.5 illumination, the p–n junction solar cells made from boron‐doped graphene films and n‐type silicon show 3.4% conversion efficiency after nitric acid treatment.

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supporting

confidence: 53%

Boron Doping of Graphene for Graphene–Silicon p–n Junction Solar Cells

Fan

et al. 2012

Advanced Energy Materials

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179

108

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“…Although much effort has devoted to improving the fabrication techniques of C/Si heterojunction PV cells ( Table 1 ) and adjusting the bandgap of a‐C, the application of a‐C/Si heterojunction PV cells have developed slowly due to the high density of defects, the difficulty of controlling the sp 2 /sp 3 ratio of the a‐C, the inhomogeneity of dopants, and the extreme growth process of a‐C …”

Section: Amorphous C/si Heterojunction Solar Cellsmentioning

confidence: 99%

Carbon/Silicon Heterojunction Solar Cells: State of the Art and Prospects

Zhu

2015

Advanced Materials

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168

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In the last few decades, advances and breakthroughs of carbon materials have been witnessed in both scientific fundamentals and potential applications. The combination of carbon materials with traditional silicon semiconductors to fabricate solar cells has been a promising field of carbon science. The power conversion efficiency has reached 15-17% with an astonishing speed, and the diversity of systems stimulates interest in further research. Here, the historical development and state-of-the-art carbon/silicon heterojunction solar cells are covered. Firstly, the basic concept and mechanism of carbon/silicon solar cells are introduced with a specific focus on solar cells assembled with carbon nanotubes and graphene due to their unique structures and properties. Then, several key technologies with special electrical and optical designs are introduced to improve the cell performance, such as chemical doping, interface passivation, anti-reflection coatings, and textured surfaces. Finally, potential pathways and opportunities based on the carbon/silicon heterojunction are envisaged. The aspects discussed here may enable researchers to better understand the photovoltaic effect of carbon/silicon heterojunctions and to optimize the design of graphene-based photodevices for a wide range of applications.

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“…1 Owing to its remarkable properties, such as large specific 20 surface area, excellently electrical and thermal conductivity, good light transmission, high mechanical strength, graphene-based materials have been developed for active materials of energy storage and conversion, 2-7 transparent conductors, [8][9][10][11] nanoelectronics, [12][13][14] and chemical sensors, [15][16][17][18][19] etc. There being 25 strong π-π stacking interaction, Van der Waals forces and high surface energy, however, graphene monolayer sheets tend to stack and self-aggregate.…”

Section: Introductionmentioning

confidence: 99%

Progress in the preparation and application of three-dimensional graphene-based porous nanocomposites

et al. 2015

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Due to high specific surface area, excellent conductivity, low mass density, good compatibility and elegant flexibility, three-dimensional graphene composites with interconnected porous structures possess unusual and novel physical and electronic properties, unsurpassed chemical functionalities and other attractive features. Therefore, different three-dimensional graphene-based nanoporous scaffolds have been extensively designed, prepared and investigated for practical applications in lithium-ion batteries, super-capacitors, solar cells, catalysis, thermal management, environment pollution enrichment and separation, and chemical sensors with high performance from both fundamental and technological viewpoints. To present readers with a better understanding of this kind of important porous material, in this feature article, we will highlight the main achievements made in the preparation of 3D graphene micro- and/or nano-architectures and their potential applications in the aforementioned fields.

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Hybrid thin films of graphene nanowhiskers and amorphous carbon as transparent conductors

Cited by 33 publications

References 18 publications

Boron Doping of Graphene for Graphene–Silicon p–n Junction Solar Cells

Boron Doping of Graphene for Graphene–Silicon p–n Junction Solar Cells

Carbon/Silicon Heterojunction Solar Cells: State of the Art and Prospects

Progress in the preparation and application of three-dimensional graphene-based porous nanocomposites

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