Mechanically Stacked, Two-Terminal Graphene-Based Perovskite/Silicon Tandem Solar Cell with Efficiency over 26%

Lamanna, Enrico; Matteocci, Fabio; Calabrò, Emanuele; Serenelli, L.; Salza, E.; Martini, Luca; Menchini, Francesca; Izzi, M.; Agresti, Antonio; Pescetelli, Sara; Bellani, Sebastiano; Castillo, Antonio Esaú Del Río; Bonaccorso, Francesco; Tucci, M.; Carlo, Aldo Di

doi:10.1016/j.joule.2020.01.015

Cited by 149 publications

(125 citation statements)

References 89 publications

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“…[125,126] In this context, Lamanna et al reported a low power density (<0.40 W cm −2 ) deposition condition (1.1 × 10 −33 mbar, Ar) for the ITO upper layer on the organic HTMs to fabricate bufferlayer-free bifacial mesoscopic perovskite top cells. [127] The authors used a graphene doped TiO 2 as the electron transport material (ETM) to enhance the performance of the perovskite top cell, and the final champion tandem device demonstrated a 26.3% efficiency (25.9% stabilized) over an active area of 1.43 cm 2 . This 'soft' deposition technique is critical to simplify the process of bifacial PSCs.…”

Section: Transparent Electrodesmentioning

confidence: 99%

Perovskite‐Based Tandem Solar Cells: Get the Most Out of the Sun

Zhang

Meng

et al. 2020

Adv Funct Materials

101

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Tandem solar cells (TSCs) comprising stacked narrow‐bandgap and wide‐bandgap subcells are regarded as the most promising approach to break the Shockley–Queisser limit of single‐junction solar cells. As the game‐changer in the photovoltaic community, organic–inorganic hybrid perovskites became the front‐runner candidate for mating with other efficient photovoltaic technologies in the tandem configuration for higher power conversion efficiency, by virtue of their tunable and complementary bandgaps, excellent photoelectric properties, and solution processability. In this review, a perspective that critically dilates the progress of perovskite material selection and device design for perovskite‐based TSCs, including perovskite/silicon, perovskite/copper indium gallium selenide, perovskite/perovskite, perovskite/CdTe, and perovskite/GaAs are presented. Besides, all‐inorganic perovskite CsPbI3 with high thermal stability is proposed as the top subcell in TSCs due to its suitable bandgap of ≈1.73 eV and rapidly increasing efficiency. To minimize the optical and electrical losses for high‐efficiency TSCs, the optimization of transparent electrodes, recombination layers, and the current‐matching principles are highlighted. Through big data analysis, wide‐bandgap perovskite solar cells with high open‐circuit voltage (Voc) are in dire need in further study. In the end, opportunities and challenges to realize the commercialization of TSCs, including long‐term stability, area upscaling, and mitigation of toxicity, are also envisioned.

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Section: Transparent Electrodesmentioning

confidence: 99%

Perovskite‐Based Tandem Solar Cells: Get the Most Out of the Sun

Zhang

Meng

et al. 2020

Adv Funct Materials

101

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“…Lamanna et al realized an inspiring combination of a heterojunction Si solar cell and a high temperatureprocessed perovskite solar cell by mechanical stacking in a 2-T configuration (Figure 8h). [151] To reduce parasitic absorption at the HTL/ITO interface, spiro-OMeTAD was substituted with PTAA, and graphene flakes were incorporated into the c-TiO and mesoporous TiO 2 of the ETL to enhance charge extraction with lowered series resistance. The mechanically stacked 2-T hybrid presented a matched current density of 18.81 mA cm −2 and a V oc of 1.8 V that almost equaled the sum of subcell V oc s. Consequently, for a reverse scan and an active area of 1.43 cm 2 , a high PCE of 26.3% and an FF of 77.5% were obtained.…”

Section: Mechanically Stacked Interconnectionmentioning

confidence: 99%

Recent Progress in Interconnection Layer for Hybrid Photovoltaic Tandems

Park

Lee

et al. 2020

Advanced Materials

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larger acceptance owing to their decreasing cost. However, Si cells feature power conversion efficiencies (PCEs) close to the maximum practically achievable value (29.4% for crystalline Si solar cells), which makes it difficult to further reduce the levelized cost of electricity by decreasing the power output-to-cost ratio. [7,8] The most straightforward solution to this problem is to hybridize multiple semiconductor layers in a tandem architecture for absorbing the different wavelengths of the solar spectrum using different solar cell technologies. [9-12] As proven by a theoretical tandem cell efficiency of ≈46%, [13] Si solar cells with a bandgap of 1.1 eV have been regarded as potential bottom subcells of hybrid tandems, additionally offering the benefits of mass production suitability owing to well-organized production lines and global supply chains. [13,14] However, Sibased hybrid tandem solar cells configured with cost-effective solar cell technologies, including dye-sensitized solar cell (DSSC) and organic photovoltaics (OPV), have far lower efficiencies than single-junction Si solar cells, predominantly because of the insufficient compatibility of the employed materials with Si solar cells. [15-19] Metal halide perovskite-based solar cells have attracted significant attention in recent years because of their potential to be processed at low cost, high efficiencies, excellent optoelectronic properties, and tunable bandgap. They have therefore considered as prospective components of hybrid tandems. [20] Previous studies on the fundamental working principle of the hydrogenated amorphous Si (a-Si:H)/a-Si:H tandem and related validation by empirical investigations show the feasibility of combining different solar cell technologies, [6,21-23] as exemplified by the pairing of high-bandgap perovskite subcells with low-bandgap Si subcells or the assembly of dual perovskitebased tandem solar cells exploiting perovskite bandgap tunability. [14,24-26] To date, considerable effort has been directed at the development of wide-bandgap perovskite solar cells (PSCs) (1.65-1.8 eV) for hybrid tandem applications, [27,28] and remarkable progress (i.e., a high open-circuit voltage (V oc) of 1.31 V with a wide bandgap of 1.72 eV (>90% of the Shockley-Queisser limit)) has been achieved. [29] Currently, researchers aim to realize perovskite-based hybrid tandem solar cells with PCEs of 30%. Nonetheless, considerable electrical property and fabrication process adjustments are required to integrate singlejunction perovskites into the hybrid tandem architecture. The introduction of an intermediate layer to bridge different solar Hybrid tandem solar cells offer the benefits of low cost and full solar spectrum utilization. Among the hybrid tandem structures explored to date, the most popular ones have four (simple stacking design) or two (terminal/tunneling layer addition design) terminal electrodes. Although the latter design is more cost-effective than the former, its widespread application is hindered by the difficulty of preparing...

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“…[5][6][7][8][9][10][11] The beneficial impact of graphene and related 2D materials in PSCs has been demonstrated both in mesoporous [12][13][14][15][16] and inverted planar structures, [17][18][19] as well as in their corresponding tandem systems. 20 Beyond graphene and its derivatives, various 2D material families have been tested including transition metal dichalcogenides, 21 MXenes, 13,22 phosphorene 23,24 and antimonene, 25 just to name a few. The high degree of structural and optoelectronic tunability of 2D materials renders them an ideal choice to form functional layers in PSCs.…”

Section: Introductionmentioning

confidence: 99%

A two-fold engineering approach based on Bi₂Te₃ flakes towards efficient and stable inverted perovskite solar cells

et al. 2020

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Mechanically Stacked, Two-Terminal Graphene-Based Perovskite/Silicon Tandem Solar Cell with Efficiency over 26%

Abstract: A novel configuration for high-performant perovskite/silicon tandem solar cells is demonstrated using a facile mechanical stacking of the sub-cells. The resulting champion perovskite/silicon tandem solar cell exhibits a stabilized efficiency of 25.9% over an active area of 1.43 cm 2 .

Cited by 149 publications

References 89 publications

Perovskite‐Based Tandem Solar Cells: Get the Most Out of the Sun

Perovskite‐Based Tandem Solar Cells: Get the Most Out of the Sun

Recent Progress in Interconnection Layer for Hybrid Photovoltaic Tandems

A two-fold engineering approach based on Bi₂Te₃ flakes towards efficient and stable inverted perovskite solar cells

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Mechanically Stacked, Two-Terminal Graphene-Based Perovskite/Silicon Tandem Solar Cell with Efficiency over 26%

Abstract: A novel configuration for high-performant perovskite/silicon tandem solar cells is demonstrated using a facile mechanical stacking of the sub-cells. The resulting champion perovskite/silicon tandem solar cell exhibits a stabilized efficiency of 25.9% over an active area of 1.43 cm 2 .

Cited by 149 publications

References 89 publications

Perovskite‐Based Tandem Solar Cells: Get the Most Out of the Sun

Perovskite‐Based Tandem Solar Cells: Get the Most Out of the Sun

Recent Progress in Interconnection Layer for Hybrid Photovoltaic Tandems

A two-fold engineering approach based on Bi2Te3 flakes towards efficient and stable inverted perovskite solar cells

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Product

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A two-fold engineering approach based on Bi₂Te₃ flakes towards efficient and stable inverted perovskite solar cells