Complex Photonic Structures for Light Harvesting

Burresi, Matteo; Pratesi, F; Riboli, Francesco; Wiersma, Diederik S.

doi:10.1002/adom.201400514

Cited by 62 publications

(37 citation statements)

References 172 publications

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“…Open channels greatly enhance the penetration of light into multiple scattering media and may benefit a wide range of applications in e.g. healthcare, sensing, security, photovoltaics and lighting [25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Frequency width of open channels in multiple scattering media

Bosch¹,

Goorden²,

Mosk³

2016

Opt. Express

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We report optical measurements of the spectral width of open transmission channels in a three-dimensional diffusive medium. The light transmission through a sample is enhanced by efficiently coupling to open transmission channels using repeated digital optical phase conjugation. The spectral properties are investigated by enhancing the transmission, fixing the incident wavefront and scanning the wavelength of the laser. We measure the transmitted field to extract the field correlation function and the enhancement of the total transmission. We find that optimizing the total transmission leads to a significant increase in the frequency width of the field correlation function. Additionally we find that the enhanced transmission persists over an even larger frequency bandwidth. This result shows open channels in the diffusive regime are spectrally much wider than previous measurements in the localized regime suggest.

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Section: Introductionmentioning

confidence: 99%

Frequency width of open channels in multiple scattering media

Bosch¹,

Goorden²,

Mosk³

2016

Opt. Express

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“…Absorption with the randomly rough surfaces found in practice may be enhanced by adding photonic structures, even with modest spatial features which do not detract from the desired electrical properties of the layers [53]. Full photonic light trapping generally requires periodic structural elements with nanosized features (e.g., [54][55][56]) that are difficult to fabricate on a textile surface, but some degree of light trapping is still feasible even with disordered nanostructures and these do have less sensitivity than coherent light trapping structures to the acceptance angle of the light (e.g., [57,58]). …”

Section: Photovoltaic Fabricsmentioning

confidence: 99%

Fabrication of Photovoltaic Textiles

Mather

Wilson

2017

Coatings

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Solar photovoltaic (PV) arrays are providing an increasing fraction of global electrical demand, with an accelerating rate of new installations. Most of these employ conventional glass-fronted panels, but this type of PV array does not satisfy applications that require a light-weight, flexible PV generator. An option discussed in this article is to consider textiles for such solar cell substrates. As explained in this review, combining the choice of PV cell type with the choice of textile offers alternative structures for flexible PV cells. In particular, the relative advantages and disadvantages are contrasted, either forming PV-coated fibres into a fabric, or coating an already formed fabric with the PV materials. It is shown that combining thin-film amorphous silicon PV technology and woven polyester fabric offers one solution to realizing flexible fabric PV cells, using well-understood coating methods from the textile and semiconductor industries. Finally a few applications are presented that are addressed by this approach.

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“…Among many others, self‐assembly is probably the most spread preparation technique to achieve structuration both at low cost and at large scale and in particular for photonic materials a number of different systems and applications have been achieved recently . Although order played the key role in the early stages of development of structured optical materials (i.e., photonic crystals), recently, disorder has turned out both desirable and challenging, enabling the discovery of novel phenomena such as random lasing or Anderson localization of light . In disordered structures, light propagation can be typically described as a random walk due to multiple scattering.…”

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confidence: 99%