Set in the Catalan Institute of Nano-technology (ICN) in Barcelona and led by Prof. Clivia Sotomayor Torres, the Phononic and Photonic Nanostructures group (P2N) investigates phonon/pho-ton/electron interactions in nano-scale condensed matter underpinned by research in nanofabrication, especially nanoimprint lithography. The long-term aim is to develop new information technology concepts where information processing is achieved with multiple state variables.

Research is carried out on nano-scale thermal and acoustic effects in both confined systems and phononic crystals; on methods to control the exciton-plasmon coupling targeting enhanced light extraction in light sources; and on the optimisation of the optical gain of printed polymer-based photonic structures.

In order to facilitate the uptake of nano-technology innovations by industry, the group is advancing nanoimprint lithography towards the realisation of 3D nano- and hybrid structures. For the latter, efforts are focused on acoustic-field assisted self-assembly of nano- and mesoscopic particles, to realise heterostructures and to deposit them selectively on patterned and or surface-functionalised substrates.

Latest Publications


Order quantification of hexagonal periodic arrays fabricated by in situ solvent-...

C. Simão, W. Khunsin, N. Kehagias, M. Salaun, M. Zelsmann, M. A Morris, and C. M. Sotomayor Torres. Nanotechnology, 25 (17), 175703 (2014) open reference link »


High quality single crystal Ge nano-membranes for opto-electronic integrated cir...


V. A. Shah, S. D. Rhead, J. E. Halpin, O. Trushkevych, E. Chávez-Ángel, A. Shchepetov, V. Kachkanov, N. R. Wilson, M. Myronov, J. S. Reparaz, R. S. Edwards, M. R. Wagner, F. Alzina, I. P. Dolbnya, D. H. Patchett, P. S. Allred, M. J. Prest, P. M. Gammon, M. Prunnila, T. E. Whall, E. H. C. Parker, C. M. Sotomayor Torres, and D. R. Leadley. Journal... open reference link »


Hypersonic phonon propagation in one-dimensional surface phononic crystal

B. Graczykowski, M. Sledzinska, N. Kehagias, F. Alzina, J. S. Reparaz, and C. M. Sotomayor Torres. Applied Physics Letters, 104, 123108 (2014) open reference link »


Ordered 2D Colloidal Photonic Crystals on Gold Substrates by Surfactant-assisted...

E. Armstrong, W. Khunsin, M. Osiak, M. Blömker, C. M. Sotomayor Torres, and C. O’Dwyer. Small, DOI: 10.1002/smll.201303616 (2014) open reference link »

Latest News


The Institut Català de Nanociència i Nanotecnologia (ICN2) accredited as a Center of Excellence Severo Ochoa

March 18, 2014 in Research

This prestigious recognition for the Institute means a contribution of one million Euros per year for the next four years. Severo Ochoa resources will be used to promote applications of nanoscience to solving social challenges in biosystems, energy and information systems. Five Spanish reference centers have been awarded together with ICN2, joining... more »


First methodology to analyse nanometer line pattern images

March 5, 2014 in Uncategorized

To meet the increasing demand for smaller, faster, and more powerful devices, a continued decrease in the dimensions of active parts of devices is required. The new methodology is a unique tool developed to address the gap existent in the metrology of sub-10 nm line patterns. Barcelona, Wednesday, March 5, 2014. At last week’s SPIE Advanced Lit... more »


End of the very successful NoE NANOFUNCTION

January 27, 2014 in Energy, Nanotech, Physics

The Network of Excellence (NoE) "Beyond CMOS nano‐devices for adding functionalities to CMOS" (NANOFUNCTION), which includes two ICN2 Groups, has been selected as one of the Top Stories of the European Commission which highlight the achievements of success stories of the Seventh Framework Programme. After three years of an intense research activ... more »


Prof. Clivia Sotomayor Torres opponent at Juha Kontio’s Ph.D. thesis defense

June 5, 2013 in Uncategorized

On Friday 24 May 2013, Prof. Clivia Sotomayor served as opponent for the Ph.D. thesis defense of MSc. (Tech) Juha Kontio. The dissertation in the field of physics was titled “Fabrication of Sub-Wavelength Photonic Structures by Nanoimprint Lithography” and was publicly examined at the Faculty of Natural Sciences of Tampere University of Technol... more »