Encapsulating perovskite solar cells to withstand damp heat and thermal cycling

Cheacharoen, Rongrong; Boyd, Caleb C.; Burkhard, George F.; Leijtens, Tomas; Raiford, James A.; Bush, Kevin A.; Bent, Stacey F.; McGehee, Michael D.

doi:10.1039/c8se00250a

Cited by 277 publications

(279 citation statements)

References 33 publications

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“…We hypothesize that the stability of the laminated perovskite solar cells is afforded via the replacement of the organic spiro‐OMeTAD as HTL. Moreover, via the lamination of the two half‐stacks of the perovskite solar cell, the devices are encapsulated by the two substrates, providing potential barrier properties against oxygen and moisture . From a technological perspective, this is very appealing, since it might combine fabrication and encapsulation to a one‐step self‐encapsulation process without the need for an external adhesive.…”

Section: Resultsmentioning

confidence: 99%

Laminated Perovskite Photovoltaics: Enabling Novel Layer Combinations and Device Architectures

Schmager

Roger

Schwenzer

et al. 2020

Adv Funct Materials

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High‐efficiency perovskite‐based solar cells can be fabricated via either solution‐processing or vacuum‐based thin‐film deposition. However, both approaches limit the choice of materials and the accessible device architectures, due to solvent incompatibilities or possible layer damage by vacuum techniques. To overcome these limitations, the lamination of two independently processed half‐stacks of the perovskite solar cell is presented in this work. By laminating the two half‐stacks at an elevated temperature (≈90 °C) and pressure (≈50 MPa), the polycrystalline perovskite thin‐film recrystallizes and the perovskite/charge transport layer (CTL) interface forms an intimate electrical contact. The laminated perovskite solar cells with tin oxide and nickel oxide as CTLs exhibit power conversion efficiencies of up to 14.6%. Moreover, they demonstrate long‐term and high‐temperature stability at temperatures of up to 80 °C. This freedom of design is expected to access both novel device architectures and pairs of CTLs that remain usually inaccessible.

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Section: Resultsmentioning

confidence: 99%

Laminated Perovskite Photovoltaics: Enabling Novel Layer Combinations and Device Architectures

Schmager

Roger

Schwenzer

et al. 2020

Adv Funct Materials

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“…Reprinted with permission from AAAS. modulus to prevent the release harmful chemicals, is an important route to further explore [74]. Engineering the perovskite dimensionality has been presented as an interesting new way towards efficient and stable devices.…”

Section: Conclusion and Open Issuesmentioning

confidence: 99%

Halide perovskites: current issues and new strategies to push material and device stability

Schileo

Grancini

2020

J. Phys. Energy

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This short review aims at summarizing the current challenges related to poor Perovskite Solar Cells (PSCs) stability which nowadays puts severe constrains on near future device commercialization. As a game changer in the field of photovoltaics (PVs), PSCs are highly efficient and cheap to fabricate. However, they suffer from poor long-term stability upon exposure to heat, moisture, oxygen and light, and combinations thereof. Poor device stability originates from intrinsic instability issues of the perovskite active layer itself, as well as extrinsic factors due to partial degradation of the layers composing the device stack. Here we briefly review the chemical and physical processes responsible for intrinsic material instability, and we highlight possible solutions to overcome it; we then consider the whole device, discussing properties and interactions of the stacked layers. Finally, particular emphasis is placed on the need of shared standards for stability tests, which should include detailed report on experimental conditions over a statistically significant number of samples, allowing for a direct comparison of results across different groups and fostering a rapid advance of our understanding of degradation mechanisms and of the solutions to overcome them.

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“…• Encapsulation: to apply water and oxygen resistant materials, e.g. polyolefin, fluoropolymers or 2D materials [70,[84][85][86].…”

Section: Multi-component Engineering For Enhanced Stabilitymentioning

confidence: 99%

Multi-component engineering to enable long-term operational stability of perovskite solar cells

Xie

Lira‐Cantú

2020

J. Phys. Energy

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With a record efficiency above 25%, the main hurdle for the commercialization of perovskite solar cells (PSCs) is their long-term operational stability. Although different strategies have been applied, the stability of PSCs is still far below the 25 year requirement demonstrated by commercial photovoltaic technologies. To advance in the former, a lab-scale stability analysis should resemble real testing conditions, and this is only possible through the interaction of several stress factors. Here, we briefly introduce the reader to the general degradation mechanisms observed on PSCs and the state-of-the-art strategies applied to realize long-term stable devices. Finally, we highlight the imperative need to engineer multiple components of the PSCs simultaneously and propose a rational design of PSC's constituents to obtain long-term operational solar cells. This perspective article will benefit the progression of PSCs as a reliable photovoltaic technology.

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Encapsulating perovskite solar cells to withstand damp heat and thermal cycling

Abstract: Glass and edge seal encapsulation of a perovskite solar cell to enable stability through damp heat and thermal cycling tests.

Cited by 277 publications

References 33 publications

Laminated Perovskite Photovoltaics: Enabling Novel Layer Combinations and Device Architectures

Laminated Perovskite Photovoltaics: Enabling Novel Layer Combinations and Device Architectures

Halide perovskites: current issues and new strategies to push material and device stability

Multi-component engineering to enable long-term operational stability of perovskite solar cells

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