Potassium-chemical synthesis of 3D graphene from CO<sub>2</sub>and its excellent performance in HTM-free perovskite solar cells

Wei, Wei; Hu, Baoyun; Jin, Fangming; Jing, Zhenzi; Li, Yuexiang; Blanco, A.A. García; Stacchiola, Darı́o; Hu, Yun Hang

doi:10.1039/c7ta01768e

Cited by 71 publications

(71 citation statements)

References 31 publications

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“…The combination of CNTs maintains the high‐temperature stability (Figure B) while also increasing conductivity. The device with CNTs‐P3HT‐PMMA HTM shows no significant degradation and had a final PCE around 14.6% …”

Section: Carbon Materials In Monolithic Psc Modulesmentioning

confidence: 99%

Carbon‐based perovskite solar cells: From single‐junction to modules

Huang

Chee

et al. 2019

Carbon Energy

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Perovskite solar cells (PSCs) have attracted more and more attention in the scientific community due to their high performance and simple fabrication process.In the past few years, emerging technologies have made manufacturing large-scale PSC modules possible. However, stability and fabrication issues still limit the modularization and commercialization of PSCs. Carbon materials have been widely used in PSCs to overcome these challenges due to their excellent optical, electrical, and mechanical properties. In addition, the hydrophobic properties of certain carbon materials are highly effective at protecting the perovskite film from moisture and improving the stability of PSCs. All these superior properties have made carbon one of the most promising materials to fabricate future highperformance PSC modules with long service lifetimes. In this review, recent developments of carbon-based materials in different layers of single-junction PSCs will first be discussed, with an emphasis on functionalities related to PSCs' stability and modularization. Then, current improvements and future discussions in the manufacturing of monolithic PSC modules will be reviewed in detail.

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Section: Carbon Materials In Monolithic Psc Modulesmentioning

confidence: 99%

Carbon‐based perovskite solar cells: From single‐junction to modules

Huang

Chee

et al. 2019

Carbon Energy

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“…The second step consisted of the reduction of the reactive carbon species on Cu foil at high temperature, thus producing graphene. Furthermore, approaches based on electrochemical methodologies using heterogeneous catalysts have been developed . For example, Hu et al.…”

Section: Introductionmentioning

confidence: 98%

Direct Conversion of CO₂ to Multi‐Layer Graphene using Cu–Pd Alloys

et al. 2019

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“…Furthermore, Hu's group has synthesized new types of graphene sheets for DSSCs via invented reactions, such as 3D honeycomb‐like structured graphene (3DHG), 3D cauliflower‐fungus‐like structured graphene, and 3D crape myrtle flower‐like structured graphene . Very recently, they invited the reaction of CO 2 and potassium (K) for the synthesis of 3DHG:

4 K_{(normall)} + 3 {CO}_{2 ((), g)} = normalC {(graphene)}_{(normals)} + 2 K_{2} {CO}_{3 ((), s)}

…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the simultaneous generation of K 2 CO 3 can isolate graphene sheets, preventing the formation of graphite and controlling the shape of graphene. The 3DHG sheets can be obtained by removing K 2 CO 3 by using hydrochloric acid (HCl) . This provides not only a novel approach for the synthesis of 3D graphene but also an energy‐efficient process for CO 2 sequestration.…”

Section: Introductionmentioning

confidence: 99%

3D graphene from CO₂ and K as an excellent counter electrode for dye-sensitized solar cells

Wei

Stacchiola

2017

Int J Energy Res

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Summary 3D graphene, which was synthesized directly from CO2 via its exothermic reaction with liquid K, exhibited excellent performance as a counter electrode for a dye‐sensitized solar cell (DSSC). The DSSC has achieved a high power conversion efficiency of 8.25%, which is 10 times larger than that (0.74%) of a DSSC with a counter electrode of the regular graphene synthesized via chemical exfoliation of graphite. The efficiency is even higher than that (7.73%) of a dye‐sensitized solar cell with an expensive standard Pt counter electrode. This work provides a novel approach to utilize a greenhouse gas for DSSCs.

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Potassium-chemical synthesis of 3D graphene from CO₂and its excellent performance in HTM-free perovskite solar cells

Abstract: The conversion of greenhouse gas CO2 into novel materials is the most promising approach to solve greenhouse gas issues.

Cited by 71 publications

References 31 publications

Carbon‐based perovskite solar cells: From single‐junction to modules

Carbon‐based perovskite solar cells: From single‐junction to modules

Direct Conversion of CO₂ to Multi‐Layer Graphene using Cu–Pd Alloys

3D graphene from CO₂ and K as an excellent counter electrode for dye-sensitized solar cells

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Potassium-chemical synthesis of 3D graphene from CO2and its excellent performance in HTM-free perovskite solar cells

Abstract: The conversion of greenhouse gas CO2 into novel materials is the most promising approach to solve greenhouse gas issues.

Cited by 71 publications

References 31 publications

Carbon‐based perovskite solar cells: From single‐junction to modules

Carbon‐based perovskite solar cells: From single‐junction to modules

Direct Conversion of CO2 to Multi‐Layer Graphene using Cu–Pd Alloys

3D graphene from CO2 and K as an excellent counter electrode for dye-sensitized solar cells

Contact Info

Product

Resources

About

Potassium-chemical synthesis of 3D graphene from CO₂and its excellent performance in HTM-free perovskite solar cells

Direct Conversion of CO₂ to Multi‐Layer Graphene using Cu–Pd Alloys

3D graphene from CO₂ and K as an excellent counter electrode for dye-sensitized solar cells