Luminescence modulation in ferroelectric materials driven by external physical stimuli


CNR-ICMATE    -  Institute of Condensed Matter Chemistry and Technologies for Energy

CNR-SPIN    -  SuPerconducting and other INnovative materials and devices institute


2 years

Fondazione Compagnia di Sanpaolo

Project aims

Over the past few decades there has been extraordinary progress in the field of photonics and optoelectronics which has led to the development of various materials and devices capable of manipulating and controlling the generation, transmission and transduction of light. The phenomenon of luminescence is exploited for wide/scale applications such as light emitting diodes (LEDs), optical fibres and lasers. The modulation of luminescence emission through external fields and stimuli has a significant application potential for light sources with variable colour and intensity as well as optical memories, switches and sensors.
The main goal of the project, led by ICMATE-CNR and with SPIN-CNR as a partner, is the fabrication of ferroelectric materials whose photoluminescence emission can be modulated in intensity or colour, by the application of external physical stimuli, such as an electric field or a temperature variation. Moreover, the project aims at clarifying the fundamental mechanism behind the modulation process.
The materials will be developed both in bulk form (dense ceramics) and as thin films and, in the final part of project, we intend to assemble a simple device to demonstrate the validity of the proposed idea.

Main activities

The project develops according to the following main activities:

  • Preparation and characterisation of bulk materials
  • Deposition and characterisation of thin films
  • Study of the luminescence and modulation properties
  • Fabrication of a simple device
  • Coordination and dissemination


Vincenzo Buscaglia

Fondazione Bancaria Compagnia di San Paolo, Torino SPIN ICMATE