Ti3C2Tx (MXene)‐Silicon Heterojunction for Efficient Photovoltaic Cells

A novel type of solar cell has been developed based on charge separation at the heterojunction formed by a transparent conducting MXene electrode and an n‐type silicon (n‐Si) wafer. A thin layer of the native silicon dioxide plays an important role in suppressing the recombination of charge carriers...

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Bibliographic Details
Published in:Advanced energy materials 2019-08, Vol.9 (31), p.n/a
Main Authors: Yu, LePing, Bati, Abdulaziz S. R., Grace, Tom S. L., Batmunkh, Munkhbayar, Shapter, Joseph G.
Format: Article
Language:English
Subjects:
Chemical treatment
Commercialization
Current carriers
Efficiency
Energy conversion efficiency
heterojunction devices
Heterojunctions
MXenes
Organic chemistry
Photovoltaic cells
Silicon dioxide
Solar cells
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Summary:A novel type of solar cell has been developed based on charge separation at the heterojunction formed by a transparent conducting MXene electrode and an n‐type silicon (n‐Si) wafer. A thin layer of the native silicon dioxide plays an important role in suppressing the recombination of charge carriers. A two‐step chemical treatment can increase the device efficiency by about 40%. Promisingly, an average power conversion efficiency of over 10% under simulated full sunlight is achieved for this novel class of solar cell with the application of an antireflection layer. The efficiencies of these novel solar cells based on a MXene‐Si heterojunction achieved in this work point to great promise in emerging photovoltaic technology. In addition to their high efficiency, the excellent reproducibility of such devices establishes a solid base for possible future commercialization. For the first time a novel type of solar device based on the heterojunction formed by 2D MXene and silicon with an initial power conversion efficiency of above 10% is introduced. This work potentially provides a new possibility to overcome the worldwide fuel shortage in the near future.
ISSN:1614-6832
1614-6840
DOI:10.1002/aenm.201901063