Broadband absorption enhancement in plasmonic nanoshells-based ultrathin microcrystalline-Si solar cells
Waseem Raja,Waseem Raja,Angelo Bozzola,Pierfrancesco Zilio,Ermanno Miele,Simone Panaro,Hai Wang,Andrea Toma,Alessandro Alabastri,Alessandro Alabastri,Francesco De Angelis,Remo Proietti Zaccaria,Remo Proietti Zaccaria +12 more
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TLDR
The role of plasmonic nanoshells, embedded within a ultrathin microcrystalline silicon solar cell, in enhancing broadband light trapping capability of the cell and, at the same time, to reduce the parasitic loss is investigated.Abstract:
With the objective to conceive a plasmonic solar cell with enhanced photocurrent, we investigate the role of plasmonic nanoshells, embedded within a ultrathin microcrystalline silicon solar cell, in enhancing broadband light trapping capability of the cell and, at the same time, to reduce the parasitic loss. The thickness of the considered microcrystalline silicon (μc-Si) layer is only ~1/6 of conventional μc-Si based solar cells while the plasmonic nanoshells are formed by a combination of silica and gold, respectively core and shell. We analyze the cell optical response by varying both the geometrical and optical parameters of the overall device. In particular, the nanoshells core radius and metal thickness, the periodicity, the incident angle of the solar radiation and its wavelength are varied in the widest meaningful ranges. We further explain the reason for the absorption enhancement by calculating the electric field distribution associated to resonances of the device. We argue that both Fabry-Perot-like and localized plasmon modes play an important role in this regard.read more
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Ligand-bridged charge extraction and enhanced quantum efficiency enable efficient n–i–p perovskite/silicon tandem solar cells
Erkan Aydin,Jiang Liu,Esma Ugur,Randi Azmi,George T. Harrison,Yi Hou,Bin Chen,Shynggys Zhumagali,Michele De Bastiani,Mingcong Wang,Waseem Raja,Thomas Allen,Atteq ur Rehman,Anand S. Subbiah,Maxime Babics,Aslihan Babayigit,Aslihan Babayigit,Furkan Halis Isikgor,Kai Wang,Emmanuel Van Kerschaver,Leonidas Tsetseris,Edward H. Sargent,Frédéric Laquai,Stefaan De Wolf +23 more
TL;DR: In this article, sputtered amorphous niobium oxide (a-NbOx) with ligand-bridged C60 was used as an efficient electron-selective contact, deposited on the textured-silicon bottom cell.
Journal ArticleDOI
Multilayered Plasmonic Nanostructures for Solar Energy Harvesting
TL;DR: In this article, the theoretical analysis associated with size-dependent modification of the bulk gold dielectric function agrees well with previous experimental results and the appropriate absorption cross section is used to determine the solar energy absorption efficiency of the nano-heterostructures, which is strongly structure-dependent, and to predict the time-dependent temperature increase of the nanoshell solution under simulated solar irradiation.
Journal ArticleDOI
Perovskite Nanopillar Array Based Tandem Solar Cell
Waseem Raja,Waseem Raja,Martina Schmid,Martina Schmid,Andrea Toma,Hai Wang,Alessandro Alabastri,Remo Proietti Zaccaria,Remo Proietti Zaccaria +8 more
TL;DR: In this article, a nanopillar array based perovskite/c-Si tandem solar cell is proposed for light-to-current conversion, and the optical and electrical performance is analyzed by a 3D finite-element numerical model.
Journal ArticleDOI
Dynamics of Strongly Coupled Hybrid States by Transient Absorption Spectroscopy
Hai Wang,Hai-Yu Wang,Hong-Bo Sun,Andrea Cerea,Andrea Toma,Francesco De Angelis,Xin Jin,Luca Razzari,Dan Cojoc,Dan Cojoc,Daniele Catone,Fangcheng Huang,Remo Proietti Zaccaria,Remo Proietti Zaccaria +13 more
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Plasmonic Resonances of Metal Nanoparticles: Atomistic vs. Continuum Approaches.
TL;DR: The fully atomistic model, ωFQ, based on textbook concepts (Drude theory, electrostatics, quantum tunneling) and recently developed by some of the present authors in Nanoscale is applied to the calculation of the optical properties of complex Na, Ag, and Au nanostructures.
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