Fiber-Shaped Perovskite Solar Cell Technologies
Summary
Fiber-shaped perovskite solar cells represent a transformative branch of photovoltaic research in which the traditional planar device architecture is reimagined on a slender, flexible filament. By depositing perovskite absorbers and charge transport layers onto conductive fibres or wires—often using techniques such as wet spinning, electrospinning or dip coating—researchers have achieved lightweight, bendable energy harvesters that can be woven into textiles or integrated onto curved surfaces. Core–shell coaxial designs, in which a central electrode is surrounded by successive layers of electron and hole transport materials topped by a second electrode, have enabled continuous power generation under mechanical deformation. These one-dimensional devices combine the exceptional light‐harvesting properties and tunable bandgaps of metal halide perovskites with the mechanical resilience of polymeric or metallic fibres, offering a route to self‐powered wearable electronics, Internet‐of‐Things sensors and distributed energy capture in off‐grid environments. Key challenges remain in enhancing long‐term stability against moisture and oxygen, improving interfacial adhesion of successive thin films, and scaling up uniform, defect‐free fabrication. Nevertheless, fibre‐shaped architectures have already demonstrated power conversion efficiencies approaching those of small‐area planar cells, signalling their potential for both consumer and industrial applications.
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Fiber-Shaped Perovskite Solar Cell Technologies publication trend
The graph below shows the total number of articles in fiber-shaped perovskite solar cell technologies across all publications each year (not limited to Nature Index journals).
Technical terms
Perovskite: A class of crystalline materials with the general formula ABX₃, prized for tunable bandgaps and high light absorption in solar cells.
Fibre‐shaped solar cell: A photovoltaic device fabricated on a one‐dimensional fibre or wire, enabling flexibility and integration into textiles or curved surfaces.
Power conversion efficiency (PCE): The ratio of electrical power output from a solar cell to the incident solar power under standard testing conditions.
Electrospinning: A fabrication technique that uses an electrostatic field to draw a polymer or precursor solution into ultrafine continuous fibres.
Charge transport layer: A thin film within a solar cell that selectively conducts either electrons or holes between the light‐absorbing layer and the electrodes.
References
- Advances in Smart Photovoltaic Textiles. ACS Nano (2024).
- Functional materials, device architecture, and flexibility of perovskite solar cell. Emergent Materials (2018).
- Optical Modelling of Planar and Fibre Perovskite Solar Cells. Electronics (2022).
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