Lab Polimeni

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Lab Polimeni

This is the fb page of the Optical Spectroscopy of Nanostructured Materials Laboratory, in the Physics Department of Sapienza University of Rome.

Herein, we will share information related to our research topics.

12/06/2021

IS FLATLAND STRETCHABLE?
Find it out!
Happy to share our Editor's pick review on the fascinating field of strain-tuning of 2D materials 🙂
Applied Physics Reviews

Thanks to Elena & Marco from Sapienza Università di Roma , Emmanuele from CNR - ISM Istituto di Struttura della Materia & Giorgio from CNR - IFN, Istituto di Fotonica e Nanotecnologie

The variegated family of two-dimensional (2D) crystals has developed rapidly since the isolation of its forerunner: Graphene. Their plane-confined nature is typically associated with exceptional an...

12/06/2021

Our recent work on a novel, very stable and bright perovskite with interesting optoelectronic properties.

https://pubs.acs.org/doi/10.1021/acs.jpclett.1c01271

Lead halide perovskites are outstanding materials for optoelectronics, but they typically feature low stability against external agents. To overcome this drawback, LHPs based on quaternary ammonium cations, such as phenyl viologen lead iodide (PhVPI), were found to be promising candidates, being wat...

20/03/2021

Our recent work where we discuss innovative approaches for the formation of site-controlled quantum dots and nanowires, by playing with the effect of hydrogen in dilute nitrides

09/03/2021

Here we perform nanoindentation experiments in mechanically-deformed two-dimensional materials and present a method to determine their elastic properties

A detailed study of elastic and thermodynamic properties of nanoblisters, made on purpose in MoS2 bulk flakes by means of low‐energy proton irradiation, is provided. An experimental approach, based o...

09/03/2021

Achieving giant strains (~14%) in ordered arrays of domes made of two-dimensional materials

Spherically shaped 2D membranes are created via hydrogen irradiation of bulk MoS2. Here, a novel engineering protocol is developed to tailor the size, shape, and position of the bulges. Periodic, non...

08/03/2021

Creating hydrogen-filled domes made of two-dimensional materials at the nano-/micro-scale :-)

Proton irradiation of bulk transition‐metal dichalcogenides leads to the blistering of atomically thin domes filled with hydrogen. The domes stud the crystal surface and locally turn the dark bulk ma...

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