TiO 2 -Coated Carbon Nanotube-Silicon Solar Cells with Efficiency of 15%
Enzheng Shi,Luhui Zhang,Zhen Li,Peixu Li,Yuanyuan Shang,Yi Jia,Jinquan Wei,Kunlin Wang,Hongwei Zhu,Dehai Wu,Sen Zhang,Anyuan Cao +11 more
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TLDR
CNT-Si junction solar cells with efficiencies reaching 15% are reported by coating a TiO2 antireflection layer and doping CNTs with oxidative chemicals, resulting in much enhanced short-circuit current and external quantum efficiency.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.read more
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Recent advancement of nanostructured carbon for energy applications
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Recent Development of Carbon Nanotube Transparent Conductive Films
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Colloidal Antireflection Coating Improves Graphene–Silicon Solar Cells
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References
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TL;DR: In this paper, the authors look into the historical background, and present status and development prospects for photoelectrochemical cells, based on nanocrystalline materials and conducting polymer films.
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Porphyrin-Sensitized Solar Cells with Cobalt (II/III)–Based Redox Electrolyte Exceed 12 Percent Efficiency
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Journal Article
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TL;DR: Mesoscopic solar cells that incorporate a Co(II/III)tris(bipyridyl)–based redox electrolyte in conjunction with a custom synthesized donor-π-bridge-acceptor zinc porphyrin dye as sensitizer are reported, enabling attainment of strikingly high photovoltages approaching 1 volt.
Journal ArticleDOI
For the Bright Future—Bulk Heterojunction Polymer Solar Cells with Power Conversion Efficiency of 7.4%
TL;DR: The past success in organic light-emitting diodes provides scientists with confidence that organic photovoltaic devices will be a vital alternate to the inorganic counterpart, and the easiness of the fabrication holds the promise of very low-cost manufacturing process.
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Light Trapping in Silicon Nanowire Solar Cells
Erik C. Garnett,Peidong Yang +1 more
TL;DR: It is demonstrated that ordered arrays of silicon nanowires increase the path length of incident solar radiation by up to a factor of 73, which is above the randomized scattering (Lambertian) limit and is superior to other light-trapping methods.