Optical Evaluation of the Rear Contacts of Crystalline Silicon Solar Cells by Coupled Electromagnetic and Statistical Ray-Optics Modeling

Dabirian, Ali; Morales‐Masis, Monica; Haug, Franz‐Josef; Wolf, Stefaan De; Ballif, Christophe

doi:10.1109/jphotov.2017.2663658

Cited by 6 publications

(3 citation statements)

References 50 publications

(97 reference statements)

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“…Similarly, the thickness of LNO was selected to encapsulate the spatial extent of the leaked high- Q mode, while minimizing the distance between the electrostatic contacts. Our electrostatic contacts consist of two 50 nm layers of transparent conducting oxide (TCO), here modeled as indium tin oxide (ITO), on top of the Si and beneath the LNO . Maintaining a minimal distance between the electrical contacts raises the resulting electrostatic field intensity experienced by the nanobar.…”

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confidence: 99%

“…Our electrostatic contacts consist of two 50 nm layers of transparent conducting oxide (TCO), here modeled as indium tin oxide (ITO), on top of the Si and beneath the LNO. 25 Maintaining a minimal distance between the electrical contacts raises the resulting electrostatic field intensity experienced by the nanobar. The ITO top contact is the same width as the Si to electrically tune each nanobar individually, while the bottom contact is continuous and acts as the ground.…”

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confidence: 99%

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High-Quality-Factor Silicon-on-Lithium Niobate Metasurfaces for Electro-optically Reconfigurable Wavefront Shaping

et al. 2022

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Dynamically reconfigurable metasurfaces promise compact and lightweight spatial light modulation for many applications, including LiDAR, AR/VR, and LiFi systems. Here, we design and computationally investigate high-quality-factor silicon-on-lithium niobate metasurfaces with electrically driven, independent control of its constituent nanobars for full phase tunability with high tuning efficiency. Free-space light couples to guided modes within each nanobar via periodic perturbations, generating quality factors exceeding 30,000 while maintaining a bar spacing of <λ/1.5. We achieve nearly 2π phase variation with an applied bias not exceeding ±25 V, maintaining a reflection efficiency above 91%. Using full-field simulations, we demonstrate a high-angle (51°) switchable beamsplitter with a diffracted efficiency of 93% and an angle-tunable beamsteerer, spanning 18–31°, with up to 86% efficiency, all using the same metasurface device. Our platform provides a foundation for highly efficient wavefront-shaping devices with a wide dynamic tuning range capable of generating nearly any transfer function.

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High-Quality-Factor Silicon-on-Lithium Niobate Metasurfaces for Electro-optically Reconfigurable Wavefront Shaping

et al. 2022

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“…Our electrostatic contacts consist of two 50 nm layers of transparent conducting oxide (TCO), here modeled as indium tin oxide (ITO), on top of the Si and beneath the LNO. 25 Maintaining minimal distance between the electrical contacts raises the resulting electrostatic field intensity experienced by the nanoantenna. The ITO top contact is etched the same width as the Si, while the bottom contact is unetched and acts as the ground.…”

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confidence: 99%

High quality factor silicon-on-lithium niobate metasurfaces for electro-optically reconfigurable wavefront shaping

Klopfer,

Dagli,

Barton

et al. 2021

Preprint

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Dynamically reconfigurable metasurfaces promise compact and lightweight spatial light modulation for many applications, including LiDAR, AR/VR, and LiFi systems.Here, we present a metasurface with full, electrically-driven independent control of its constituent nanoantennas, full phase tunability, and high tuning efficiency. Our metasurface consists of high quality factor Si nanoantenna bars atop lithium niobate.Free-space light couples to guided modes within each nanobar via subtle geometric

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Optical optimization of a multi-layer wideband anti-reflection coating using porous MgF2 for sub-micron-thick CIGS solar cells

et al. 2019

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Optical Evaluation of the Rear Contacts of Crystalline Silicon Solar Cells by Coupled Electromagnetic and Statistical Ray-Optics Modeling

Cited by 6 publications

References 50 publications

High-Quality-Factor Silicon-on-Lithium Niobate Metasurfaces for Electro-optically Reconfigurable Wavefront Shaping

High-Quality-Factor Silicon-on-Lithium Niobate Metasurfaces for Electro-optically Reconfigurable Wavefront Shaping

High quality factor silicon-on-lithium niobate metasurfaces for electro-optically reconfigurable wavefront shaping

Optical optimization of a multi-layer wideband anti-reflection coating using porous MgF2 for sub-micron-thick CIGS solar cells

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