Arianna Rivalta

ORCID: 0000-0002-0528-4044
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About
Contact & Profiles
Research Areas
  • X-ray Diffraction in Crystallography
  • Crystallization and Solubility Studies
  • Polyoxometalates: Synthesis and Applications
  • Layered Double Hydroxides Synthesis and Applications
  • Electrocatalysts for Energy Conversion
  • Supercapacitor Materials and Fabrication
  • Crystallography and molecular interactions
  • Organic Electronics and Photovoltaics
  • Luminescence and Fluorescent Materials
  • Nonlinear Optical Materials Research
  • Spectroscopy and Quantum Chemical Studies
  • Liquid Crystal Research Advancements
  • Surface Chemistry and Catalysis
  • Nonlinear Dynamics and Pattern Formation
  • Material Dynamics and Properties
  • Photonic Crystals and Applications
  • Thermography and Photoacoustic Techniques
  • Catalysis and Hydrodesulfurization Studies
  • Renaissance Literature and Culture
  • Polydiacetylene-based materials and applications
  • Conducting polymers and applications
  • Advanced battery technologies research
  • Photonic and Optical Devices
  • Dyeing and Modifying Textile Fibers
  • Electrochemical Analysis and Applications

University of Bologna
2018-2021

Ono Pharmaceutical (Japan)
2019

National Interuniversity Consortium of Materials Science and Technology
2019

Indigo [2,2′-bis(2,3-dihydro-3-oxoindolyliden)], a commonly used natural dye, has been shown to exhibit highly promising semiconducting behavior, allowing for the realization of ambipolar devices. Nevertheless, up date, it is still unclear which crystal structure present in thin films, piece information relevant device applications. In this work, we address issue by an in-depth characterization polymorphs bulk and drop-cast films. To do this, X-ray diffraction (XRD) micro-Raman spectroscopy...

10.1021/acs.jpcc.8b03635 article EN The Journal of Physical Chemistry C 2018-07-11

The combination of different nondestructive spectroscopic techniques (Raman, infrared, luminescence) is shown to provide identification quinacridone polymorphs when this well known pigment used in organic electronics devices.

10.1039/c9ce00070d article EN CrystEngComm 2019-01-01

Abstract Layered double hydroxides (LDHs) have been widely studied for their plethora of fascinating features and applications. The potentiostatic electrodeposition LDHs has extensively applied in the literature as a fast direct method to substitute classical chemical routes. However, electrochemical approach does not usually allow fine control M II /M III ratio synthesized material. By employing recently proposed potentiodynamic method, LDH films controlled composition are herein prepared...

10.1002/chem.201903288 article EN Chemistry - A European Journal 2019-09-27

We revisit the polymorphism of paracetamol by means a micro-Raman technique, which has proved to be powerful tool for structure recognition. Distinct lattice phonon spectra clearly identified pure phases. Confocality enabled us detect phase mixing between form II and either I or III on micrometric scale in same crystallite. Following most recent findings surface-mediated structures, we also investigated spin-coated films grown glass, gold, polystyrene substrates, confirming selectivity these...

10.1021/acsomega.8b01246 article EN publisher-specific-oa ACS Omega 2018-08-20

Polymorph selection in thin films of quinacridone obtained by the soluble latent pigment precursor method is found to be driven crystalline form a combined low-frequency Raman spectroscopy and X-ray diffraction study.

10.1039/d1tc01313k article EN Journal of Materials Chemistry C 2021-01-01

Understanding the behavior and properties of molecules assembled in thin layers requires knowledge their crystalline packing. The drug phenytoin (5,5-diphenylhydantoin) is one compounds that can be grown as a surface induced polymorph. By using grazing incidence X-ray diffraction, monoclinic unit cell new form II determined, but, due to crystal size low amount data, full solution conventional structure solving strategies fails. In this work, has been obtained by combining computational...

10.1021/acs.cgd.9b00857 article EN cc-by Crystal Growth & Design 2019-09-17

A method for structure solution in thin films that combines grazing incidence X-ray diffraction data analysis and crystal prediction was presented a recent work (Braun et al. Cryst. Growth Des. 2019, DOI: 10.1021/acs.cgd.9b00857). Applied to phenytoin form II, which is only detected films, the approach gave very reasonable, but not fully confirmed, candidate with Z = 4 Z′ 2. In present work, we demonstrate how, by calculating measuring Raman spectrum low wavenumber energy region aim of...

10.1021/acs.cgd.9b00863 article EN cc-by Crystal Growth & Design 2019-09-18

Recently, structural studies in the thin-film phase of 6,6′-dibromoindigo, main component Tyrian purple dye, revealed presence surface-induced structures. This finding is important, as system a good candidate for applications organic electronics, and knowledge film structure needed to explain physical properties conducting layer. In this work, combining results low-frequency Raman spectroscopy, X-ray diffraction, accurate density-functional theory (DFT) calculations vibrational proposed...

10.1021/acs.jpcc.0c05186 article EN cc-by The Journal of Physical Chemistry C 2020-07-21
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