A 1D conical nanotubular TiO2/CdS heterostructure with superior photon-to-electron conversion
ČlánekStatus neznámýpeer-reviewedpublishedSoubory
Datum publikování
2018-08-14
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Royal Society of Chemistry
Abstrakt
Herein, a new strategy to efficiently harvest photons in solar cells is presented. A solar cell heterostructure is put forward, based on a 1D conical TiO2 nanotubular scaffold of high aspect ratio, homogenously coated with a thin few nm layer of CdS light absorber using atomic layer deposition (ALD). For the first time, a large variety of conical nanotube layers with a huge span of aspect ratios was utilized and ALD was used for the preparation of a uniform CdS coating within the entire high surface area of the TiO2 nanotubes. The resulting 1D conical CdS/TiO2 tubular heterostructure acts as a sink for photons. Due to the multiple light scattering and absorption events within this nanotubular sink, a large portion of photons (nearly 80%) is converted into electrons. It is the combination of the scaffold architecture and the light absorber present on the high surface area as a very thin layer, the optimized charge transport and multiple optical effects that make this heterostructure very promising for the next generation of highly performing solar cells.
Rozsah stran
p. 16601-16612
ISSN
2040-3364
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Projekt
EC/H2020/638857/EU/Towards New Generation of Solid-State Photovoltaic Cell: Harvesting Nanotubular Titania and Hybrid Chromophores/CHROMTISOL
Zdrojový dokument
Nanoscale. 2018, issue 35
Vydavatelská verze
https://pubs.rsc.org/en/content/articlehtml/2018/nr/c8nr02418a
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Attribution-NonCommercial-NoDerivs 3.0 Czech Republic
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Except where otherwised noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Czech Republic