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    Corrugation Enabled Asymmetrically Ultrastretchable (95%) Monocrystalline Silicon Solar Cells with High Efficiency (19%)

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    Name:
    Adv. En. Mat._Stretchable_Solar Cell_Revised_not marked (1).pdf
    Size:
    1.955Mb
    Format:
    PDF
    Description:
    Accepted manuscript
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    Type
    Article
    Authors
    Elatab, Nazek cc
    Qaiser, Nadeem cc
    Bahabry, Rabab
    Hussain, Muhammad Mustafa cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Integrated Nanotechnology Lab
    MMH Labs
    KAUST Grant Number
    OSR-2015-Sensors-2707
    OSR-2016-KKI-2880.
    Date
    2019-12-06
    Embargo End Date
    2020-12-06
    Submitted Date
    2019-09-04
    Permanent link to this record
    http://hdl.handle.net/10754/661466
    
    Metadata
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    Abstract
    Stretchable solar cells are of growing interest due their key role in realizing many applications such as wearables and biomedical devices. Ultrastretchability, high energy-efficiency, biocompatibility, and mechanical resilience are essential characteristics of such energy harvesting devices. Here, the development of wafer-scale monocrystalline silicon solar cells with world-record ultrastretchability (95%) and efficiency (19%) is demonstrated using a laser-patterning based corrugation technique. The demonstrated approach transforms interdigitated back contacts (IBC) based rigid solar cells into mechanically reliable but ultrastretchable cells with negligible degradation in the electric performance in terms of current density, open-circuit voltage, and fill factor. The corrugation method is based on the creation of alternating grooves resulting in silicon islands with different shapes. The stretchability is achieved by orthogonally aligning the active silicon islands to the applied tensile stress and using a biocompatible elastomer (Ecoflex) as a stretchable substrate. The resulting mechanics ensure that the brittle silicon areas do not experience significant mechanical stresses upon asymmetrical stretching. Different patterns are studied including linear, diamond, and triangular patterns, each of which results in a different stretchability and loss of active silicon area. Finally, finite element method based simulation is conducted to study the generated deformation in the different patterned solar cells.
    Citation
    El-Atab, N., Qaiser, N., Bahabry, R., & Hussain, M. M. (2019). Corrugation Enabled Asymmetrically Ultrastretchable (95%) Monocrystalline Silicon Solar Cells with High Efficiency (19%). Advanced Energy Materials, 9(45), 1902883. doi:10.1002/aenm.201902883
    Sponsors
    M.M.H. conceived the idea and directed the project. N.E.-A. designed, fabricated, and characterized the stretchable solar cells and analyzed the results. N.Q. assisted in COMSOL simulations. All authors discussed the results. This publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. Sensor Innovation Initiative OSR-2015-Sensors-2707 and KAUST-KFUPM Special Initiative OSR-2016-KKI-2880.
    Publisher
    Wiley
    Journal
    Advanced Energy Materials
    DOI
    10.1002/aenm.201902883
    10.1002/aenm.201970178
    Additional Links
    https://onlinelibrary.wiley.com/doi/abs/10.1002/aenm.201970178
    ae974a485f413a2113503eed53cd6c53
    10.1002/aenm.201902883
    Scopus Count
    Collections
    Articles; Electrical and Computer Engineering Program; Integrated Nanotechnology Lab; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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