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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Edoff, Marika
Uppsala University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2024High-concentration silver alloying and steep back-contact gallium grading enabling copper indium gallium selenide solar cell with 23.6% efficiencycitations
- 2023Silver Alloying in Highly Efficient CuGaSe 2 Solar Cells with Different Buffer Layerscitations
- 2023Cu(In,Ga)Se2 based ultrathin solar cells the pathway from lab rigid to large scale flexible technologycitations
- 2023Low energy muon study of the p-n interface in chalcopyrite solar cells
- 2023Silver Alloying in Highly Efficient CuGaSe2 Solar Cells with Different Buffer Layerscitations
- 2021Thermodynamic stability, phase separation and Ag grading in (Ag,Cu)(In,Ga)Se2 solar absorberscitations
- 2021Alkali Dispersion in (Ag,Cu)(In,Ga)Se-2 Thin Film Solar Cells-Insight from Theory and Experimentcitations
- 2021Alkali dispersion in (Ag,Cu)(In,Ga)Se2 thin film solar cells – Insight from theory and experimentcitations
- 2021High-Performance and Industrially Viable Nanostructured SiOx Layers for Interface Passivation in Thin Film Solar Cellscitations
- 2020Amorphous tin-gallium oxide buffer layers in (Ag,Cu)(In,Ga)Se2 solar cellscitations
- 2020Thermodynamic stability, phase separation and Ag grading in (Ag,Cu)(In,Ga)Se-2 solar absorberscitations
- 2020Comparison of Sulfur Incorporation into CuInSe(2)and CuGaSe(2)Thin-Film Solar Absorberscitations
- 2019Rear Optical Reflection and Passivation Using a Nanopatterned Metal/Dielectric Structure in Thin-Film Solar Cellscitations
- 2019Atomic layer deposition of amorphous tin-gallium oxide filmscitations
- 2019Modelling Supported Design of Light Management Structures in Ultra-Thin Cigs Photovoltaic Devicescitations
- 2018Passivation of Interfaces in Thin Film Solar Cells: Understanding the Effects of a Nanostructured Rear Point Contact Layercitations
- 2018Insulator Materials for Interface Passivation of Cu(In,Ga)Se-2 Thin Filmscitations
- 2017CdS and Zn1−xSnxOy buffer layers for CIGS solar cells
- 2017Cd and Cu Interdiffusion in Cu(In, Ga)Se2/CdS Hetero-Interfaces
- 2017ALD of phase controlled tin monosulfide thin films
- 2015Investigating the electronic properties of Al2O3/Cu(In, Ga)Se-2 interfacecitations
- 2014Potential-induced optimization of ultra-thin rear surface passivated CIGS solar cellscitations
- 2014Optimizing Ga-profiles for highly efficient Cu(In,Ga)Se2 thin film solar cells in simple and complex defect modelscitations
- 2013Development of Rear Surface Passivated Cu(In,Ga)Se2 Thin Film Solar Cells with Nano-Sized Local Rear Point Contactscitations
- 2013Surface engineering in Cu(In,Ga)Se2 solar cellscitations
- 2011Effect of gallium grading in Cu(In,Ga)Se2 solar-cell absorbers produced by multi-stage coevaporationcitations
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article
Rear Optical Reflection and Passivation Using a Nanopatterned Metal/Dielectric Structure in Thin-Film Solar Cells
Abstract
<p>Currently, one of the main limitations in ultrathin Cu(In,Ga)Se<sub>2</sub> (CIGS) solar cells are the optical losses, since the absorber layer is thinner than the light optical path. Hence, light management, including rear optical reflection, and light trapping is needed. In this paper, we focus on increasing the rear optical reflection. For this, a novel structure based on having a metal interlayer in between the Mo rear contact and the rear passivation layer is presented. In total, eight different metallic interlayers are compared. For the whole series, the passivation layer is aluminum oxide (Al<sub>2</sub>O<sub>3</sub>). The interlayers are used to enhance the reflectivity of the rear contact and thereby increasing the amount of light reflected back into the absorber. In order to understand the effects of the interlayer in the solar cell performance both from optical and/or electrical point of view, optical simulations were performed together with fabrication and electrical measurements. Optical simulations results are compared with current density-voltage (J-V) behavior and external quantum efficiency measurements. A detailed comparison between all the interlayers is done, in order to identify the material with the greatest potential to be used as a rear reflective layer for ultrathin CIGS solar cells and to establish fabrication challenges. The Ti-W alloy is a promising a rear reflective layer since it provides solar cells with light to power conversion efficiency values of 9.9%, which is 2.2% (abs) higher than the passivated ultrathin sample and 3.7% (abs) higher than the unpassivated ultrathin reference sample.</p>