MXenes: promising donor and acceptor materials for high-efficiency heterostructure solar cells

Zhang, Yinggan; Xiong, Rui; Sa, Baisheng; Zhou, Jian; Sun, Zhimei

doi:10.1039/d0se01443e

Cited by 35 publications

(34 citation statements)

References 59 publications

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“…Moreover, the influence of Here, it should also be noted that the previous reports are mainly based on experiments. Accordingly, prediction and optimization of the material properties of MXenes terminated with different functional groups based on theoretical/simulation approaches are necessary for more accurately guiding the experiments [63,[82][83][84].…”

Section: Conclusion and Prospectmentioning

confidence: 99%

MXenes for Solar Cells

et al. 2021

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Application of two-dimensional MXene materials in photovoltaics has attracted increasing attention since the first report in 2018 due to their metallic electrical conductivity, high carrier mobility, excellent transparency, tunable work function and superior mechanical property. In this review, all developments and applications of the Ti3C2Tx MXene (here, it is noteworthy that there are still no reports on other MXenes’ application in photovoltaics by far) as additive, electrode and hole/electron transport layer in solar cells are detailedly summarized, and meanwhile, the problems existing in the related studies are also discussed. In view of these problems, some suggestions are given for pushing exploration of the MXenes’ application in solar cells. It is believed that this review can provide a comprehensive and deep understanding into the research status and, moreover, helps widen a new situation for the study of MXenes in photovoltaics.

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Section: Conclusion and Prospectmentioning

confidence: 99%

MXenes for Solar Cells

et al. 2021

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“…Ti 2 CO 2 /Zr 2 CO 2 and Ti 2 CO 2 /Hf 2 CO 2 heterostructure solar cells, in particular, have really high power conversion efficiency of 22.74 and 19.56 percent, respectively (Most PCEs inside this paper were evaluated at AM-1.5G-illumination). This research opens the path for MXenes to be used as solar materials in the future [ 88 ]. According to Saeed et al, many new opportunities for creating effective indoor organic photovoltaics (OPVs) for practical applications can be explored.…”

Section: The Efficiency Improvement Of Solar Cellsmentioning

confidence: 99%

A Brief Review of the Role of 2D Mxene Nanosheets toward Solar Cells Efficiency Improvement

et al. 2021

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This article discusses the application of two-dimensional metal MXenes in solar cells (SCs), which has attracted a lot of interest due to their outstanding transparency, metallic electrical conductivity, and mechanical characteristics. In addition, some application examples of MXenes as an electrode, additive, and electron/hole transport layer in perovskite solar cells are described individually, with essential research issues highlighted. Firstly, it is imperative to comprehend the conversion efficiency of solar cells and the difficulties of effectively incorporating metal MXenes into the building blocks of solar cells to improve stability and operational performance. Based on the analysis of new articles, several ideas have been generated to advance the exploration of the potential of MXene in SCs. In addition, research into other relevant MXene suitable in perovskite solar cells (PSCs) is required to enhance the relevant work. Therefore, we identify new perspectives to achieve solar cell power conversion efficiency with an excellent quality–cost ratio.

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“…Under the interlayer coupling in vdW heterostructures, they can also exhibit novel characteristics that their components do not possess [ 7 , 11 , 12 , 13 ]. Designing type-II vdW heterostructures for solar cells through band-structure engineering by using calculations is an efficient way, such as graphene/GaAs [ 5 ], Ti 2 CO 2 /Zr 2 CO 2 [ 14 ] and GaSe/GaTe heterostructures [ 15 ]. Generally, a vdW heterostructure based high-efficiency solar cell consists of two parts: a absorption layer with a small band gap (~1.2–1.6 eV [ 16 ]) and strong light absorption capacity, and a window layer with a large band gap and high transparency for the incident light [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

“…Generally, a vdW heterostructure based high-efficiency solar cell consists of two parts: a absorption layer with a small band gap (~1.2–1.6 eV [ 16 ]) and strong light absorption capacity, and a window layer with a large band gap and high transparency for the incident light [ 17 , 18 ]. Besides, the high carrier mobility and the direct band gap of the absorption layer that generates photo-generated electrons are also beneficial for improving the efficiency of solar cells [ 14 , 15 ]. Due to thickness and atomically sharp interfaces, light-generated carriers can be effectively separated in vdW heterostructures.…”

Section: Introductionmentioning

confidence: 99%

InSe/Te van der Waals Heterostructure as a High-Efficiency Solar Cell from Computational Screening

Xiong

et al. 2021

Materials

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Designing the electronic structures of the van der Waals (vdW) heterostructures to obtain high-efficiency solar cells showed a fascinating prospect. In this work, we screened the potential of vdW heterostructures for solar cell application by combining the group III–VI MXA (M = Al, Ga, In and XA = S, Se, Te) and elementary group VI XB (XB = Se, Te) monolayers based on first-principle calculations. The results highlight that InSe/Te vdW heterostructure presents type-II electronic band structure feature with a band gap of 0.88 eV, where tellurene and InSe monolayer are as absorber and window layer, respectively. Interestingly, tellurene has a 1.14 eV direct band gap to produce the photoexcited electron easily. Furthermore, InSe/Te vdW heterostructure shows remarkably light absorption capacities and distinguished maximum power conversion efficiency (PCE) up to 13.39%. Our present study will inspire researchers to design vdW heterostructures for solar cell application in a purposeful way.

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MXenes: promising donor and acceptor materials for high-efficiency heterostructure solar cells

Abstract: Constructing heterostructure solar cells by donor and acceptor semiconductors have taken global interests owing to their high power conversion efficiency. In this paper, based on density functional theory calculations, we...

Cited by 35 publications

References 59 publications

MXenes for Solar Cells

MXenes for Solar Cells

A Brief Review of the Role of 2D Mxene Nanosheets toward Solar Cells Efficiency Improvement

InSe/Te van der Waals Heterostructure as a High-Efficiency Solar Cell from Computational Screening

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