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    MXene-Contacted Silicon Solar Cells with 11.5% Efficiency

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    21 Advanced Energy Materials.pdf
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    Type
    Article
    Authors
    Fu, Hui-Chun
    Ramalingam, Vinoth
    Kim, Hyunho
    Lin, Chun-Ho
    Fang, Xiaosheng
    Alshareef, Husam N. cc
    He, Jr-Hau cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Functional Nanomaterials and Devices Research Group
    KAUST Solar Center (KSC)
    Material Science and Engineering Program
    Nano Energy Lab
    Physical Science and Engineering (PSE) Division
    Date
    2019-04-24
    Online Publication Date
    2019-04-24
    Print Publication Date
    2019-06
    Permanent link to this record
    http://hdl.handle.net/10754/653064
    
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    Abstract
    MXene, a new class of 2D materials, has gained significant attention owing to its attractive electrical conductivity, tunable work function, and metallic nature for wide range of applications. Herein, delaminated few layered Ti3C2Tx MXene contacted Si solar cells with a maximum power conversion efficiency (PCE) of ≈11.5% under AM1.5G illumination are demonstrated. The formation of an Ohmic junction of the metallic MXene to n+-Si surface efficiently extracts the photogenerated electrons from n+np+-Si, decreases the contact resistance, and suppresses the charge carrier recombination, giving rise to excellent open-circuit voltage and short-circuit current density. The rapid thermal annealing process further improves the electrical contact between Ti3C2Tx MXene and n+-Si surface by reducing sheet resistance, increasing electrical conductivity, and decreasing cell series resistance, thus leading to a remarkable improvement in fill factor and overall PCE. The work demonstrated here can be extended to other MXene compositions as potential electrodes for developing highly performing solar cells.
    Citation
    Fu H, Ramalingam V, Kim H, Lin C, Fang X, et al. (2019) MXene-Contacted Silicon Solar Cells with 11.5% Efficiency. Advanced Energy Materials: 1900180. Available: http://dx.doi.org/10.1002/aenm.201900180.
    Sponsors
    H.C.F. and V.R. contributed equally to this work. Research reported in this publication was funded by King Abdullah University of Science and Technology (KAUST) Baseline Funds, KAUST Sensor Initiative, KAUST Solar Center, and KAUST Catalysis Center. X.S.F. acknowledges the support from the Science and Technology Commission of Shanghai Municipality (18520744600, 18520710800, and 17520742400).
    Publisher
    Wiley
    Journal
    Advanced Energy Materials
    DOI
    10.1002/aenm.201900180
    10.1002/aenm.201970083
    Additional Links
    https://onlinelibrary.wiley.com/doi/full/10.1002/aenm.201900180
    ae974a485f413a2113503eed53cd6c53
    10.1002/aenm.201900180
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Electrical and Computer Engineering Program; Material Science and Engineering Program; KAUST Solar Center (KSC); Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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