Dielectric Scattering Patterns for Efficient Light Trapping in Thin-Film Solar Cells

Lare, Claire van; Lenzmann, Frank; Verschuuren, Marc A.; Polman, A.

doi:10.1021/nl5045583

Cited by 64 publications

(31 citation statements)

References 37 publications

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“…Here, we assume the strain rate is 10 −2 s −1 given that in situ tensile experiments were conducted under the quasi-static condition. By summarizing simulation results, experimental outcomes and prediction of equation (4) (see figure 7(b)), we find out that the case of 55 nm in [19] agrees well with the prediction of equation (4). However, tensile behavior of the 20 nm sample conflicts with prediction since the wurtzite to tetragonal phase transformation was not observed [28].…”

Section: Wurtzite To Tetragonal Phase Transformationsupporting

confidence: 69%

On the wurtzite to tetragonal phase transformation in ZnO nanowires

et al. 2017

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Dynamic behaviour of silicon carbide nanowires under high and extreme strain rates: a molecular dynamics study H Tsuzuki, J P Rino and P S Branicio There is a long standing contradiction on the tensile response of zinc oxide nanowires between theoretical prediction and experimental observations. Although it is proposed that there is a ductile behavior dominated by phase transformation, only an elastic deformation and brittle fracture was witnessed in experiments. Using molecular dynamics simulations, we clarified that, as the lateral dimension of zinc oxide nanowires increases to a critical value, an unambiguous ductile-to-brittle transition occurs. The critical value increases with decreasing the strain rate. Factors including planar defects and surface contamination induce brittle fracture prior to the initiation of phase transformation. These findings are consistent with previous atomistic standpoints and experimental results.

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Section: Wurtzite To Tetragonal Phase Transformationsupporting

confidence: 69%

On the wurtzite to tetragonal phase transformation in ZnO nanowires

et al. 2017

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“…We also find an improved FF , which may be originated from the reduction of the series resistance ( R s) of the devices from 75.26 Ohm (flat) to 47.13 Ohm (NH) . The J SC increases from 10.45 mA/cm 2 to 13.15 and 14.69 mA/cm 2 using textured FTO glass and nanopatterned ZnO/PI instead of the flat PI substrate.…”

Section: Resultsmentioning

confidence: 71%

Efficient and Flexible Thin Film Amorphous Silicon Solar Cells on Nanotextured Polymer Substrate Using Sol–gel Based Nanoimprinting Method

Zhang

Song

Wang

et al. 2017

Adv Funct Materials

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The mechanical flexibility of substrates and controllable nanostructures are two major considerations in designing high‐performance, flexible thin‐film solar cells. In this work, we proposed an approach to realize highly ordered metal oxide nanopatterns on polyimide (PI) substrate based on the sol‐gel chemistry and soft thermal nanoimprinting lithography. Thin‐film amorphous silicon (a‐Si:H) solar cells were subsequently constructed on the patterned PI flexible substrates. The periodic nanopatterns delivered broadband‐enhanced light absorption and quantum efficiency, as well as the eventual power conversion efficiency (PCE). The nanotextures also benefit for the device yield and mechanical flexibility, which experienced little efficiency drop even after 100,000 bending cycles. In addition, flexible, transparent nanocone films, obtained by a template process, were attached onto the patterned PI solar cells, serving as top anti‐reflection layers. The PCE performance with these dual‐interfacial patterns rose up to 8.17%, that is, it improved by 48.5% over the planar device. Although the work was conducted on a‐Si:H material, our proposed scheme can be extended to a variety of active materials for different optoelectronic applications.

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“…The use of both metal and dielectric nanoparticles in light trapping applications have been extensively studied recently [8,9]. With a proper choice of size (within the visible spectrum range) and material, the employment of metallic and dielectric nanoparticles may exhibit light scattering properties through effect of plasmon resonance or dielectric scattering.…”

Section: Open Accessmentioning

confidence: 99%

Optical Simulation of Light Management in CIGS Thin-Film Solar Cells Using Finite Element Method

2015

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Abstract:In this paper we present an optical simulation of light management in Cu(In,Ga)Se2 thin-film solar cells with reduced absorber layer thickness, with the goal of absorption enhancement in the absorber layer. The light management was achieved by texturing of the substrate layer, and the conformal growth of all the following layers was assumed. Two texturing shapes have been explored: triangular and convex, with different periods and height aspect ratios. The simulations have shown that significant enhancement of absorption within the absorber layer can be achieved using the proposed geometry. The results showed that the triangular textures with small periods (100-200 nm) and high aspect ratios have the most prominent effect on the enhancement of absorption within the absorber layer, although they are difficult to achieve experimentally.

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Dielectric Scattering Patterns for Efficient Light Trapping in Thin-Film Solar Cells

Cited by 64 publications

References 37 publications

On the wurtzite to tetragonal phase transformation in ZnO nanowires

On the wurtzite to tetragonal phase transformation in ZnO nanowires

Efficient and Flexible Thin Film Amorphous Silicon Solar Cells on Nanotextured Polymer Substrate Using Sol–gel Based Nanoimprinting Method

Optical Simulation of Light Management in CIGS Thin-Film Solar Cells Using Finite Element Method

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