Publications de Giulia Tagliabue

Decoupling Optical and Thermal Dynamics in Dielectric Metasurfaces for Self-Encoded Photonic Control

Giulia Tagliabue, Elif Nur Dayi, Omer Can Karaman, Alan Richard Bowman

Thermo-optical nonlinearities (TONL) in metasurfaces enable dynamic control of optical properties—such as transmitted power, phase, and polarization—through external stimuli like laser irradiation or temperature. Due to the inherently slow thermal dynamics ...

2025

A Single Sub-Millimetric Metasurface-Based Optical Element for Lattice Bessel Beam Excitation Enabling Brain Activity Recordings In Vivo

Giulia Tagliabue, Anna Archetti

Bessel beams (BBs) are propagation-invariant optical fields that retain a narrow central intensity profile over longer propagation lengths than Gaussian beams (GBs). Due to this property, they have been adopted in fluorescence-based light sheet microscopy ...

WILEY-V C H VERLAG GMBH2025

Dataset to accompany publication "Distinguishing Inner and Outer-Sphere Hot Electron Transfer in Au/p-GaN Photocathodes"

Giulia Tagliabue, Fateme Kiani Shahvandi, Milad Sabzehparvar, Alan Richard Bowman

This dataset accompanies the publication "Distinguishing Inner and Outer-Sphere Hot Electron Transfer in Au/p-GaN Photocathodes" published in Nano Letters. The data can be used to reproduce the original plots in figures 2-4 in the main text and all origina ...

Zenodo2025

Lighten the holes

Giulia Tagliabue

NATURE PORTFOLIO2025

Hydrogel-based thermoelectrochemical cells for waste heat recovery under passive cooling conditions

Giulia Tagliabue, Matteo Bevione

Hydrogel-based thermoelectrochemical cells sustain large temperature gradients under passive cooling, producing up to 35 mW m−2 and a 3.5 mV K−1 Seebeck response. They are robust across orientations, enabling scalable waste-heat recovery. ...

Royal Society of Chemistry (RSC)2025

Large-area Monocrystalline Copper Microflake Synthesis

Giulia Tagliabue, Elif Nur Dayi, Omer Can Karaman, Alan Richard Bowman

Copper is one of the most extensively studied materials for energy conversion and catalytic systems, with a wide range of other applications, from nanophotonics to biotechnology. However, existing synthesis methods are limited with many undesirable byprodu ...

AMER CHEMICAL SOC2025

Dataset to accompany publication "Re-defining non-tracking solar cell efficiency limits with directional spectral filters"

Giulia Tagliabue, Alan Richard Bowman

This dataset accompanies the publication "Re-defining non-tracking solar cell efficiency limits with directional spectral filters" published in ACS Photonics (10.1021/acsphotonics.4c02181). The data can be used to reproduce figures 2-4 in the main text and ...

Zenodo2025

Re-defining Non-tracking Solar Cell Efficiency Limits with Directional Spectral Filters

Giulia Tagliabue, Alan Richard Bowman

Optical filters that respond to the wavelength and direction of incident light can be used to increase the efficiency of tracking solar cells. However, as tracking solar cells are more expensive to install and maintain, it is likely that nontracking solar ...

American Chemical Society (ACS)2025

Best practices in measuring absorption at the macro- and microscale

Giulia Tagliabue, Fateme Kiani Shahvandi, Jiaming Ma, Alan Richard Bowman

The fraction of light absorbed in a material is a key parameter for a wide range of optoelectronic and energy devices, including solar cells, light emitting diodes, and photo(electro)chemical devices. It can reveal detailed performance information and esta ...

2024

Spatially resolved photoluminescence analysis of the role of Se in CdSexTe1−x thin films

Giulia Tagliabue, Alan Richard Bowman

Evidence from cross-sectional electron microscopy has previously shown that Se passivates defects in CdSexTe1−x solar cells, and that this is the reason for better lifetimes and voltages in these devices. Here, we utilise spatially resolved photoluminescen ...

Nature Research2024

High-Performance Hematite Photoanodes for Unassisted Recharging of Solar Redox Flow Battery

Giulia Tagliabue, Jiaming Ma

Solar redox flow batteries (SRFB) have attracted increasing interest for simultaneous capture and storage of solar energy by integrating a photoelectrochemical cell with a redox flow battery. Herein, a scalable, nanostructured α-Fe2O3 photoanode exhibiting ...

2024

Fourier analysis of near-field patterns generated by propagating polaritons

Giulia Tagliabue

Scattering-type scanning near-field optical microscope (s-SNOM) has become an essential tool to study polaritons—quasiparticles of light coupled to collective charge oscillations—via direct probing of their near field with a spatial resolution far beyond t ...

American Physical Society (APS)2024

Light-Intensity Switching of Graphene/WSe2 Synaptic Devices

Giulia Tagliabue, Tarique Anwar, Hongyu Tang

2D van der Waals heterojunctions (vdWH) have emerged as an attractive platform for the realization of optoelectronic synaptic devices, which are critical for energy-efficient computing systems. Photogating induced by charge traps at the interfaces indeed r ...

Wiley2024

Dataset to accompany publication "Best practices in measuring absorption at the macro- and microscale"

Giulia Tagliabue, Fateme Kiani Shahvandi, Jiaming Ma, Alan Richard Bowman

This dataset accompanies the publication "Best practices in measuring absorption at the macro- and microscale" published in APL Photonics. The data can be used to reproduce original plots in figures 1-4 in the main text and all original plots in the suppor ...

Zenodo2024

Salinity-dependent interfacial phenomena toward hydrovoltaic device optimization

Giulia Tagliabue, Tarique Anwar

By leveraging ordered arrays of silicon nanopillars (NPs) and developing a quantitative multiphysics model, this work reveals the complex interplay of surface charge, liquid properties, and geometrical parameters in these systems, including previously unex ...

2024

Distinguishing Inner and Outer-Sphere Hot Electron Transfer in Au/p-GaN Photocathodes

Giulia Tagliabue, Fateme Kiani Shahvandi, Milad Sabzehparvar, Alan Richard Bowman

Exploring nonequilibrium hot carriers from plasmonic metal nanostructures is a dynamic field in optoelectronics, with applications including photochemical reactions for solar fuel generation. The hot carrier injection mechanism and the reaction rate are hi ...

American Chemical Society (ACS)2024

Photonic solutions help fight climate crisis

Giulia Tagliabue

The mitigation of climate change requires major transformations in the ways we generate energy and operate technologies that release carbon dioxide. Photonic concepts and novel light-driven technologies provide many potential solutions, transforming our cu ...

Nature Publishing Group2024

Nanostructured Fe2O3/CuxO heterojunction for enhanced solar redox flow battery performance

Giulia Tagliabue, Jiaming Ma, Milad Sabzehparvar

Solar redox flow batteries (SRFB) have received much attention as an alternative integrated technology for simultaneous conversion and storage of solar energy. Yet, the photocatalytic efficiency of semiconductor-based single photoelectrodes, such as hemati ...

Royal Society of Chemistry2024

Dataset to accompany publication "Quantum-mechanical effects in photoluminescence from thin crystalline gold films"

Giulia Tagliabue, Fateme Kiani Shahvandi, Theodoros Tsoulos, Alan Richard Bowman

This dataset accompanies the publication "Quantum-mechanical effects in photoluminescence from thin crystalline gold films" published in Light: Science & Applications (https://doi.org/10.1038/s41377-024-01408-2). The data can be used to reproduce plots 1-4 ...

Zenodo2024

Ultrafast hot-carrier dynamics in ultrathin monocrystalline gold

Giulia Tagliabue

Applications in photodetection, photochemistry, and active metamaterials and metasurfaces require fundamental understanding of ultrafast nonthermal and thermal electron processes in metallic nanosystems. Significant progress has been recently achieved in s ...

Nature Portfolio2024