Concurrent cationic and anionic perovskite defect passivation enables 27.4% perovskite/silicon tandems with suppression of halide segregation

Isikgor, Furkan H.; Furlan, Francesco; Liu, Jiang; Ugur, Esma; Eswaran, Mathan Kumar; Subbiah, Anand S.; Yengel, Emre; Bastiani, Michele De; Harrison, George T.; Zhumagali, Shynggys; Howells, Calvyn Travis; Aydın, Erkan; Wang, Mingcong; Gasparini, Nicola; Allen, Thomas G.; Rehman, Atteq Ur; Kerschaver, Emmanuel Van; Baran, Derya; McCulloch, Iain; Anthopoulos, Thomas D.; Schwingenschlögl, Udo; Laquai, Frédéric; Wolf, Stefaan De

doi:10.1016/j.joule.2021.05.013

Cited by 151 publications

(154 citation statements)

References 83 publications

(88 reference statements)

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“…Also, Aydin et al [ 87 ] fabricated 25% perovskite/textured silicon tandem solar cells by the spin‐coating method, and they suggest that the optimal perovskite bandgap energy at standard test conditions is <1.68 eV for field performance at operational temperatures greater than 55 °C due to the opposite trend of the temperature dependence of both the silicon and perovskite bandgaps. Isikgor et al [ 88 ] reported 27.4% perovskite/textured silicon tandem solar cells by the spin‐coating method and a concurrent cationic and anionic perovskite defect passivation strategy.…”

Section: Monolithic Perovskite‐silicon Tandems: Complementary and Com...mentioning

confidence: 99%

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Monolithic Perovskite‐Silicon Tandem Solar Cells: From the Lab to Fab?

Yang

et al. 2022

Advanced Materials

122

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accounts for only ≈3% of global electricity generation. [1] However, PV is experiencing an accelerated growth globally with >130 GW installed in 2020, an acceleration that should continue in the future to provide 20-30% of the global electricity on the 2050 horizon. [2] The key to materializing this ambitious goal is to reduce the cost of PV-generated electricity to make solar energy significantly cheaper than that produced by fossil fuels, and to promote the implementation of storage technologies. [3] Currently, the major cost component of a PV system stems from the balance-ofsystems (BOS). [4] The BOS refers to all the components of a PV system other than the solar module, including wiring, inverters, land, installation, labor, etc. With cell costs typically accounting for less than 20% of the total module cost (and module costs typically account for around 40% at the system level), [4,5] increasing power conversion efficiency at the cell and module level is the most efficient way to reduce the levelized cost of electricity (LCOE), provided this efficiency gain comes at affordable manufacturing costs. [6] Increasing the solar module efficiency is even more important for residential rooftops, facades, or other applications where This review focuses on monolithic 2-terminal perovskite-silicon tandem solar cells and discusses key scientific and technological challenges to address in view of an industrial implementation of this technology. The authors start by examining the different crystalline silicon (c-Si) technologies suitable for pairing with perovskites, followed by reviewing recent developments in the field of monolithic 2-terminal perovskite-silicon tandems. Factors limiting the power conversion efficiency of these tandem devices are then evaluated, before discussing pathways to achieve an efficiency of >32%, a value that small-scale devices will likely need to achieve to make tandems competitive. Aspects related to the upscaling of these device active areas to industryrelevant ones are reviewed, followed by a short discussion on module integration aspects. The review then focuses on stability issues, likely the most challenging task that will eventually determine the economic viability of this technology. The final part of this review discusses alternative monolithic perovskite-silicon tandem designs. Finally, key areas of research that should be addressed to bring this technology from the lab to the fab are highlighted.

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Section: Monolithic Perovskite‐silicon Tandems: Complementary and Com...mentioning

confidence: 99%

“…[ 128 ] Using surface treatment with molecules containing both electron‐rich and electron‐poor moieties, such as phenformin hydrochloride (PhenHCl), Isikgor et al showed 1.68 eV devices without any V OC losses after more than 3000 h of thermal stress at 85 °C in a nitrogen atmosphere. [ 88 ]…”

Section: Long‐term Stabilitymentioning

confidence: 99%

Monolithic Perovskite‐Silicon Tandem Solar Cells: From the Lab to Fab?

Yang

et al. 2022

Advanced Materials

122

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“…FSA can coordinate the composition of perovskite to form complexes that enable uniform and stable crystallization. Recently, Furkan et al [166] report phenformin hydrochloride (PhenHCl) molecules, containing both electronegative amine and imine groups alongside an electropositive ammonium head group, which can satisfy both requirements, independent of the perovskite's surface chemical composition and its grain boundaries and interface (Figure 13d). The DFT calculations demonstrate that the PhenHCl molecule can effectively passivate all these possible surface dangling bonds without limitation from the chemical and electronic nature of the surface defects.…”

Section: Zwitterionic Moleculementioning

confidence: 99%

Efficient and Stable FA‐Rich Perovskite Photovoltaics: From Material Properties to Device Optimization

Liu

et al. 2022

Advanced Energy Materials

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The perovskite photovoltaic field has developed rapidly within a decade. In particular, formamidinium (FA)‐rich perovskite allows a broad absorption spectrum, and is considered to be one of the most promising perovskite materials. Great progress has been achieved, and most recorded high‐efficient perovskite solar cells (PSCs) used the FA‐rich perovskite light absorption layer. However, the black α‐phase formamidinium lead iodide (FAPbI3) perovskite easily transforms into an undesirable δ‐phase at a low temperature. Thus, researchers have put a lot of effort into deeply understanding the phase transformation and stabilization mechanism of FA‐rich perovskite. Herein, the fundamental physical properties of FAPbI3 materials, including crystal structure, phase‐transition temperature, charge‐carrier dynamics, etc. are summarized, and establish a complete phase evolution with temperature by reviewing previous reports. The intrinsic and external factors are subsequently discussed for influencing the stability of FAPbI3 perovskite and the remarkable breakthroughs of FA‐rich PSCs in recent years are reviewed. Moreover, a series of strategies to stabilize FA‐rich perovskite is summarized, including but not limited to compositional engineering, passivating engineering, processing engineering, and strain engineering. Finally, several new viewpoints are provided for improving the efficiency and stability of PSCs. This review may be regarded as a reference project for preparing high‐efficient and stable perovskite photovoltaic devices.

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“…A recent work on tandem perovskite/c-Si with front textured silicon employing a phosphonic acid based SAM ([2-(9H-carbazol-9-yl)ethyl]phosphonic acid, 2PACz) hypothesized that this SAM might not cover the peaks of the pyramids completely, thereby reducing shunt resistance and V OC in tandem devices when compared to the summation of two single-junction cells. 6 Similarly, it has been shown that the different facets of crystalline ITO and surface roughness of ITO affected SAM formation causing defects in the layer. 7,8 In addition, it has been shown that the pretreatment of ITO affects the properties of the assembled layers.…”

Section: ■ Introductionmentioning

confidence: 99%

Enhanced self-assembled monolayer surface coverage by ALD NiO for p-i-n perovskite solar cells

Phung

Verheijen

Todinova

et al. 2021

Proceedings of the 13th Conference on Hybrid and Organic Photovoltaics

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Concurrent cationic and anionic perovskite defect passivation enables 27.4% perovskite/silicon tandems with suppression of halide segregation

Cited by 151 publications

References 83 publications

Monolithic Perovskite‐Silicon Tandem Solar Cells: From the Lab to Fab?

Monolithic Perovskite‐Silicon Tandem Solar Cells: From the Lab to Fab?

Efficient and Stable FA‐Rich Perovskite Photovoltaics: From Material Properties to Device Optimization

Enhanced self-assembled monolayer surface coverage by ALD NiO for p-i-n perovskite solar cells

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