Enhanced Light Harvesting in Semitransparent Organic Solar Cells using an Optical Metal Cavity Configuration

Pastorelli, Francesco; Romero‐Gómez, Pablo; Betancur, Rafael; Martínez-Otero, Alberto; Mantilla-Pérez, Paola; Bonod, Nicolas; Martorell, Jordi

doi:10.1002/aenm.201400614

Cited by 58 publications

(50 citation statements)

References 26 publications

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“…5, semi-transparent cells whose PCE was 5.3%, corresponding to 90% of the PCE of the corresponding opaque cell, were reported. 92 The visible transparency of such cells differed little from the semi-transparent cell which did not include the multilayer, while the EQE closely matched that of the opaque cell as seen in Fig. 6.…”

Section: Semi-transparent Organic Photovoltaic Cells With Light Trappmentioning

confidence: 73%

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Semi-transparent polymer solar cells

et al. 2015

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Abstract. Over the last three decades, progress in the organic photovoltaic field has resulted in some device features which make organic cells applicable in electricity generation configurations where the standard silicon-based technology is not suitable, for instance, when a semitransparent photovoltaic panel is needed. When the thin film solar cell performance is evaluated in terms of the device's visible transparency and power conversion efficiency, organic solar cells offer the most promising solution. During the last three years, research in the field has consolidated several approaches for the fabrication of high performance semi-transparent organic solar cells. We have grouped these approaches under three categories: devices where the absorber layer includes near-infrared absorption polymers, devices incorporating one-dimensional photonic crystals, and devices with a metal cavity light trapping configuration. We herein review these approaches.

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Section: Semi-transparent Organic Photovoltaic Cells With Light Trappmentioning

confidence: 73%

“…91 The same approach has been applied to semi-transparent devices and cells exhibiting a PCE equivalent to 90% of the PCE of the opaque counterpart have been demonstrated. 92 2 Semi-Transparent Polymer Cells…”

Section: Introductionmentioning

confidence: 99%

Semi-transparent polymer solar cells

et al. 2015

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“…Good agreement was obtained with the integral value of L estimated by an EIS analysis under the same operative conditions, confirming the remarkable setting of SATEM analysis. We believe that these results provide a solid base to extend the technique to different semi-transparent technologies, such as perovskite-based cells [48][49][50] and organic cells [51][52][53]). Unfortunately, a role in transport and recombination can be played by other contributions (for instance drift) that may have to be taken into account for precise collection efficiency modeling [54,55].…”

Section: Discussionmentioning

confidence: 99%

Diffusion Length Mapping for Dye-Sensitized Solar Cells

et al. 2016

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Abstract:The diffusion length (L) of photogenerated carriers in the nanoporous electrode is a key parameter that summarizes the collection efficiency behavior in dye-sensitized solar cells (DSCs). At present, there are few techniques able to spatially resolve L over the active area of the device. Most of them require contact patterning and, hence, are intrinsically destructive. Here, we present the first electron diffusion length mapping system for DSCs based on steady state incident photon to collected electron (IPCE) conversion efficiency (η IPCE ) analysis. The measurement is conducted by acquiring complete transmittance (T DSC ) and η IPCE spectra from the photo electrode (PE) and counter electrode (CE) for each spatial point in a raster scan manner. L(x, y) is obtained by a least square fitting of the IPCE ratio spectrum (IPCE R =). An advanced feature is the ability to acquire η IPCE spectra using low-intensity probe illumination under weakly-absorbed background light (625 nm) with the device biased close to open circuit voltage. These homogeneous conditions permit the linearization of the free electron continuity equation and, hence, to obtain the collection efficiency expressions (η COL-PE and η COL-CE ). The influence of the parameter's uncertainty has been quantified by a sensitivity study of L. The result has been validated by quantitatively comparing the average value of L map with the value estimated from electrochemical impedance spectroscopy (EIS).

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“…Moreover, the realization of such kind of electrodes has demonstrated a clear advantage in terms of cost-effectiveness, compatibility with plastic materials and high throughput production at low processing temperatures. 10,13,[34][35][36][37][38][39] Taking all these considerations into account, the adhesion properties of several films made of both sol-gel precursor solutions and nanoparticle suspensions were first evaluated following the simple scotch tape test. 40 We compared that behaviour when using a sol-gel titanium dioxide (TiO 2 ) precursor, zinc oxide (ZnO) and aluminium oxide (Al 2 O 3 ) nanoparticle suspensions with average size distributions centred at 10 nm and 30 nm, respectively.…”

Section: Devices Integrating Nanoparticle Sacrificial Layersmentioning

confidence: 99%

Nanoparticle Assisted Mechanical Delamination for Freestanding High Performance Organic Devices

Colodrero

Romero‐Gómez

Mantilla-Pérez

et al. 2016

Adv Funct Materials

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Organic electronics has the potential to be incorporated in any kind of surface morphology for wearable or fully portable applications. Unfortunately when organic devices, such as solar cells, are fabricated on flexible substrates, the device performance is severely limited unless the physical properties of such substrates are carefully chosen. Here, it is demonstrated that layers of nanoparticles with a size gradient distribution can be used to obtain high performance solar cell devices that can be effectively delaminated from an original flat and rigid glass substrate. Such sacrificial nanoparticles layers are incorporated in between the glass substrate and the semitransparent electrode of a polymer:fullerene (PTB7:PC71BM) cell. After the cell delamination, freestanding flexible devices with power conversion efficiencies as high as 7.12% are obtained, which corresponds to 90% of the performance of the same cell fabricated on a standard glass smooth surface.

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Enhanced Light Harvesting in Semitransparent Organic Solar Cells using an Optical Metal Cavity Configuration

Cited by 58 publications

References 26 publications

Semi-transparent polymer solar cells

Semi-transparent polymer solar cells

Diffusion Length Mapping for Dye-Sensitized Solar Cells

Nanoparticle Assisted Mechanical Delamination for Freestanding High Performance Organic Devices

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