Theoretical investigation of amplified spontaneous emission in an active structure by extended (3×3)transfer matrix formalism: the case of a non-uniform longitudinal distribution of emitters

Boucher, Yann

doi:10.2971/jeos.2006.06027

Cited by 9 publications

(1 citation statement)

References 16 publications

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“…The light emission and propagation in our samples were studied thanks to an 3*3 extended transfer matrix method (ETMM) coupled with electric dipole emitters [32][33][34]. This method uses the ellipsometric parameters (refractive indexes and thicknesses) of the sample and the surrounding media.…”

Section: +mentioning

confidence: 99%

Down-shifting Si-based layer for Si solar applications

Dumont

Benzo

Cardin

et al. 2017

Solar Energy Materials and Solar Cells

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International audienceSiNx and SiNx:Tb3+ thin layers were deposited by reactive magnetron co-sputtering with the objective of optimizing the light management in Si solar cells. Those Si-based layers are developed to be compatible with the Si-PV technology. An efficient energy transfer between SiNx matrix and terbium ions (Tb3+), enhancing this system absorption, has been demonstrated and optimized. The layer composition and microstructure as well as its optical properties have been analyzed with the aim of improving both its anti-reflective properties and its luminescence emission intensity. An optimized layer was obtained by co-sputtering of Si and Tb targets in a nitrogen rich atmosphere. The emission efficiency of the SiNx:Tb3+ layer is compared to the one of previously optimized SiOxNy:Tb3+ layer. Finally we show how SiNx:Tb3+ thin films may be integrated on top of Si solar cells and act simultaneously as a down-shifting layer and antireflective coating

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Section: +mentioning

confidence: 99%

Down-shifting Si-based layer for Si solar applications

Dumont

Benzo

Cardin

et al. 2017

Solar Energy Materials and Solar Cells

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Advances in Functional Solution Processed Planar 1D Photonic Crystals

Lova

Manfredi

Comoretto

2018

Advanced Optical Materials

172

226

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photonic states (PDOS), [2][3][4] which helps explaining the photoluminescence (PL) changes of materials when embedded in the PhC structure.Traditionally, PhCs have been made carving bulky inorganic dielectrics or sem iconductors. These structures are still a hot topic in photonics for optical fibers, light emitting diodes (LEDs), sensors, photo voltaic devices, lasers, discrete and integrated optical components, lightening, and quantum computing. [6] However, new solution processable photoactive materials (e.g., organic semiconductors, quantum dots, hybrid perovskites, and selfassem bling supramolecular systems) stimulated the development of PhCs grown with organic and colloidal materials by solution and melt processes. [7] Among PhCs, distributed Bragg reflectors (DBRs) are cur rently the most interesting owing to their planar structure which generates a simple optical response that represents a playground to understand deep physical concepts, as described in Sections 2.4 and 4. DBRs are indeed made of alternated thin films of different dielectric materials. This simplicity makes them the only PhCs that can take advantage of large area growths (see Section 3.1). [8] Such fabrication methods are unconceivable with bulky inorganic DBRs and might reduce processing costs and enhance customizability, also on industrial scale, thus adding unprecedented market opportunities. Figure 1 illustrates the evolution and fabrications of solution and melt processed DBRs. The top of the Figure displays three wellknown natural DBRs belonging to animal and plant reigns: the mother of pearl, [9] the Panamanian Tortoise beetle exoskel eton, [10] and the Pollia Condensata skin, [11] whose growth is driven by the thermodynamics of spinodal phase separation. [12] The interest in these natural structures leads to their emulation until the development of solutionbased fabrication methods for flexible synthetic DBRs made of polymers and inorganic nanoparticles (Figure 1). At the base of Figure 1, we also show some applications arose only in the last decades. From left to right: the use of DBRs in functional architecture, in enhance ment of photon absorption for photovoltaic cells and modules, emission control, lasing, and sensing. [7c,13] In this paper we will first briefly review the properties of DBRs and then focus on the reasons that guided the research toward new solutionbased and largearea fabrications, describing current processes used both at the laboratory and largearea scales. We will then review the main applications of these structures comparing the performances of mesoporous inorganic and polymer devices. An overview on the properties and applications of polymer and inorganic planar 1D photonic crystals fabricated from solution is provided here. In the last decades, photonic crystals became technologically relevant for light management, photovoltaics, sensing, and lasing. Such structures are traditionally produced by lithographic and vacuum techniques, but the need to reduce costs and to scale-up the fabrication have lea...

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Enhancing The Optical And Electrical Properties of Si-based Nanostructured Materials

et al. 2011

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International audienceMultilayer structures of Si rich silicon oxide (SiOx) alternated with two types of dielectric sublayers viz. SiO2 or SiNx have been studied. An enhancement in the density of nanoclusters within the SiOx sublayer is achieved by using the reactive magnetron co-sputtering method. The effect of SiNx sublayer thickness on the photoluminescence properties is investigated. We succeed in enhancing the absorption and the pholuminescence properties of the multilayers by replacing SiO2 by SiNx sublayers. We also achieve a higher conductivity in SiOx/SiNx with an improved thermal budget. This preliminary study gives a deep insight to optimize materials for future solar cell device applications with enhanced properties at reduced thermal budget

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Theoretical investigation of amplified spontaneous emission in an active structure by extended (3×3)transfer matrix formalism: the case of a non-uniform longitudinal distribution of emitters

Cited by 9 publications

References 16 publications

Down-shifting Si-based layer for Si solar applications

Down-shifting Si-based layer for Si solar applications

Advances in Functional Solution Processed Planar 1D Photonic Crystals

Enhancing The Optical And Electrical Properties of Si-based Nanostructured Materials

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