TiO2-Coated Carbon Nanotube-Silicon Solar Cells with Efficiency of 15% View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2012-12

AUTHORS

Enzheng Shi, Luhui Zhang, Zhen Li, Peixu Li, Yuanyuan Shang, Yi Jia, Jinquan Wei, Kunlin Wang, Hongwei Zhu, Dehai Wu, Sen Zhang, Anyuan Cao

ABSTRACT

Combining carbon nanotubes (CNTs), graphene or conducting polymers with conventional silicon wafers leads to promising solar cell architectures with rapidly improved power conversion efficiency until recently. Here, we report CNT-Si junction solar cells with efficiencies reaching 15% by coating a TiO₂ antireflection layer and doping CNTs with oxidative chemicals, under air mass (AM 1.5) illumination at a calibrated intensity of 100 mW/cm² and an active device area of 15 mm². The TiO₂ layer significantly inhibits light reflectance from the Si surface, resulting in much enhanced short-circuit current (by 30%) and external quantum efficiency. Our method is simple, well-controlled, and very effective in boosting the performance of CNT-Si solar cells. More... »

PAGES

884

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/srep00884

DOI

http://dx.doi.org/10.1038/srep00884

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1042712656

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/23181192


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34 schema:description Combining carbon nanotubes (CNTs), graphene or conducting polymers with conventional silicon wafers leads to promising solar cell architectures with rapidly improved power conversion efficiency until recently. Here, we report CNT-Si junction solar cells with efficiencies reaching 15% by coating a TiO₂ antireflection layer and doping CNTs with oxidative chemicals, under air mass (AM 1.5) illumination at a calibrated intensity of 100 mW/cm² and an active device area of 15 mm². The TiO₂ layer significantly inhibits light reflectance from the Si surface, resulting in much enhanced short-circuit current (by 30%) and external quantum efficiency. Our method is simple, well-controlled, and very effective in boosting the performance of CNT-Si solar cells.
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