Virginia Carnevali

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Carbazole Treated Waterproof Perovskite Films with Improved Solar Cell Performance

Michael Graetzel, Paul Joseph Dyson, Ursula Röthlisberger, Felix Thomas Eickemeyer, Lukas Pfeifer, Virginia Carnevali, Nikolaos Lempesis, Haizhou Lu, Yeonju Kim, Jaeki Jeong

Surface passivation has been widely employed to suppress non-radiative charge recombination and prevent interfacial charge accumulation in perovskite photovoltaics. In this report, carbazole modified with ammonium iodide connected via alkyl chains of diffe ...

Wiley-V C H Verlag Gmbh2024

From Chalcogen Bonding to S-π Interactions in Hybrid Perovskite Photovoltaics

Ursula Röthlisberger, Laura Piveteau, Virginia Carnevali, Mathias Dankl, Nikolaos Lempesis, Lorenzo Agosta, Dominik Józef Kubicki

The stability of hybrid organic-inorganic halide perovskite semiconductors remains a significant obstacle to their application in photovoltaics. To this end, the use of low-dimensional (LD) perovskites, which incorporate hydrophobic organic moieties, provi ...

WILEY2024

Nanoscale size affects in $α$-FAPbI$_3$ evinced large-scale ab initio simulations

Ursula Röthlisberger, Virginia Carnevali, Nikolaos Lempesis, Lorenzo Agosta

Formamidinium-lead-iodide (FAPbI3) has established itself as the state of the art for high solar-energy conversion efficiency in perovskite-based solar cells. FAPbI3 has a rich phase diagram, and it has been noted that long-range correlation between organi ...

Zenodo2024

Low-loss contacts on textured substrates for inverted perovskite solar cells

Shaik Mohammed Zakeeruddin, Mingyang Wei, Ursula Röthlisberger, Felix Thomas Eickemeyer, Virginia Carnevali, Nikolaos Lempesis, Lorenzo Agosta

Inverted perovskite solar cells (PSCs) promise enhanced operating stability compared to their normal-structure counterparts1–3. To improve efficiency further, it is crucial to combine effective light management with low interfacial losses4,5. Here we devel ...

2023

Buried Interface Engineering Enables Efficient and 1,960-hour Isos-L-2i Stable Inverted Perovskite Solar Cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Ursula Röthlisberger, Felix Thomas Eickemeyer, Mathias Dankl, Virginia Carnevali, Xiong Li, Nikolaos Lempesis, Mingyang Wei, Lorenzo Agosta

High-performance perovskite solar cells (PSCs) typically require interfacial passivation, yet this is challenging for the buried interface, owing to the dissolution of passivation agents during the deposition of perovskites. Here, we overcome this limitati ...

Zenodo2023

Buried Interface Engineering Enables Efficient and 1,960‐hour Isos‐L‐2i Stable Inverted Perovskite Solar Cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Ursula Röthlisberger, Felix Thomas Eickemeyer, Mathias Dankl, Virginia Carnevali, Xiong Li, Nikolaos Lempesis, Mingyang Wei, Lorenzo Agosta

Wiley2024

Tautomeric mixture coordination enables efficient lead-free perovskite LEDs

Michael Graetzel, Shaik Mohammed Zakeeruddin, Ursula Röthlisberger, Lukas Pfeifer, Virginia Carnevali, Lorenzo Agosta, Haizhou Lu

Lead halide perovskite light-emitting diodes (PeLEDs) have demonstrated remarkable optoelectronic performance1-3. However, there are potential toxicity issues with lead4,5 and removing lead from the best-performing PeLEDs-without compromising their high ex ...

NATURE PORTFOLIO2023

Lone Pair Rotation and Bond Heterogeneity Leading to Ultralow Thermal Conductivity in Aikinite

Virginia Carnevali

Understanding the relationship between the crystal structure, chemical bonding, and lattice dynamics is crucial for the design of materials with low thermal conductivities, which are essential in fields as diverse as thermoelectrics, thermal barrier coatin ...

2023

Doping of epitaxial graphene by direct incorporation of nickel adatoms

Gianluca Prandini, Virginia Carnevali

Direct incorporation of Ni adatoms during graphene growth on Ni( 111) is evidenced by scanning tunneling microscopy. The structure and energetics of the observed defects is thoroughly characterized at the atomic level on the basis of density functional the ...

ROYAL SOC CHEMISTRY2019

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