Category: Research News

Article Published: Self-Assembled QD Crystals

Our latest research article on the optical properties of self-assembled quantum dot crystals has just been published as an Accepted Manuscript in the Journal of Materials Chemistry C.!divAbstract

This research was undertaken as part of our collaborative work with ITMO University, St Petersburg, Russia. In this paper, quantum dot (QD) self-assembly into ordered superstructures has been analysed, along with the evolution of their morphological and optical properties. QD self-assembly occurs through two distinct stages (homo- and hetero-geneous), leading to the formation of supercrystals with a layered morphology. Analysis of the optical properties throughout the superstructures’ growth has shown that the absorption and photoluminescence (PL) bands are blue shifted, retaining almost the same PL lifetimes as in the initial QD solution. The supercrystals formed possess a further unique optical property caused by their layered morphology; namely, a four-fold symmetry characterized by strong birefringence. Such supercrystals may be used for the fabrication of microscale optical paths with high extinction coefficients and specific polarization properties for novel optoelectronic devices.

Smart Nanomaterials 2018: Advances, Innovation and Applications

We are currently organising a conference – Smart Nanomaterials: Advances, Innovation and Applications (SNAIA) 2018 Conference .

The programme committee are now accepting abstracts for both oral and poster presentations. The abstract submission deadline is 15 September 2018.

The conference’s focus is to discuss the most critical technological advances, innovations and new practical applications in Smart Technologies. The conference will take place in the École Nationale Supérieure de Chimie de Paris, Paris Tech from 10th to 13th of December 2018. More information on SNAIA 2018 can be found at

More than 200 attendees will meet at this Conference and exhibition. The SNAIA 2018 will provide a unique platform to meet, share knowledge and establish links between experts from academia and industry in the emerging fields of Wearable and Printed (Opto)Electronics, CMOS Photonics, Quantum Computing, Artificial Intelligence, OptoGenetics, Smart Coatings and Thin Films.


The conference programme will include:

  • 2D Material Symposium (in partnership with Exeter’s Centre for Graphene Science)
    Chair: Prof Monica Craciun (University of Exeter)
  • Liquid Crystal Symposium (in partnership with the British Liquid Crystal and International Liquid Crystal Societies)
    Chair: Prof Ingo Dierking (University of Manchester)
  • Optoelectronics and Photonics Symposium (organised by the Univ. of Exeter SPIE Student Chapter)
    Chair: Joaquín Faneca Ruedas (President of Univ. of Exeter SPIE Student Chapter)
  • Si Photonics Symposium
    Chair: Prof Frederic Gardes (University of Southampton)
  • Microscopy and Microspectroscopy of Nanomaterials Symposium (in partnership with the Royal Microscopical Society (RMS) and the European Microscopy Society (EMS))
    Chair: Dr Anna Baldycheva (University of Exeter)
  • Smart Biosensors and Bioanalytical Systems Symposium
    Chair: Prof Andrey Somov (Skoltech University)


We have an exciting list of Keynote and Invited Speakers lined up for this event:

Prof. Andrea C. Ferrari – Cambridge Graphene Centre

Prof. Shanhui Fan – Stanford University

Prof. Pavlos Lagoudakis – University of Southampton & Skoltech University

Prof. David Andrews – University of East Anglia

Prof. Laura Lechuga – Catalan Institute of Nanoscience and Nanotechnology

Prof. Rudolf Bratschitsch – University of Münster

Prof. Anatoly Zayats – Kings College London

Prof. Lorenzo Pavesi – University of Trento

Prof. Aldo Di Carlo – University of Rome

Prof. Frank A. Nüesch – École Polytechnique Fédérale de Lausanne

Prof. Frederic Gardes – University of Southampton

Prof. László Forró – École Polytechnique Fédérale de Lausanne

Prof. Jérôme Tignon – École Normale Supérieure & UPMC

Prof. Igor Bondarev – North Carolina Central University

Prof. Ingo Dierking – University of Manchester

Prof. Alberto G. Curto – Eindhoven University of Technology

Prof. Alberto Bramati – Université Pierre et Marie Curie

Prof. Ventsislav Valev – University of Bath

Prof. Mikhail Portnoi – University of Exeter

Prof. Coskun Kocabas – University of Manchester

Prof. Monica Craciun – University of Exeter

Prof. Igor Lukyanchuk – University of Amiens

Prof. Oleg Yazev – École Polytechnique Fédérale de Lausanne

Prof. Alberto G. Curto – Eindhoven University of Technology

Prof. Zhe Li – Cardiff University

Prof. Pavlos Savvidis – University of Heraklion

Prof. Cinzia Casiraghi – University of Manchester

Prof. Andrey Somov – Skoltech University

Prof. Daniel Wolverson – University of Bath

Prof. Sergey Tarasenko – Ioffe Institute St. Petersburg

Prof. Vladimir Antonov – Royal Holloway University

Dr. Stanislav Leesment – NT-MDT

Prof. Shun-Jen Cheng – National Physical Laboratory

Prof. Slaven Garaj – National University of Trento

Dr. Cesar Moreno – Catalan Institute of Nanoscience and Nanotechnology

Dr. Giacomo Scalari – ETH Zürich

Prof. Jochen  Feldmann – Ludwig Maximilian University of München

Prof. Brian Gerardot – Heriot-Watt University

Prof. Jake Fontana – U.S. Naval Research Laboratory

Dr. Dave Carbery – University of Bath

Prof. Nicolae Panoiu – University College London

Prof. Concita Sibilia – La Sapienza University of Rome

Dr. Pavel Ginzburg – Tel Aviv University

Prof. Hiromi Okamoto – Institute for Molecular Science

Prof. Liwu Zhang – Fudan University

Prof. Louise Bradley – Trinity College Dublin


The conference will also produce two publications:

  1. A Book of Abstracts (printed version available on the first day of the SNAIA2018).
  2. A special thematic volume on Smart Nanomaterials of the peer-reviewed open-access journal Nanoscale Research Letters. Articles will be added as soon as they are peer-reviewed after the conference.

Photonic Crystal Resonators – Article Published

Exciting new research from the Baldycheva Laboratory is now freely available to read.

Joaquin Faneca et al. have recently had their paper accepted for publication in the peer-reviewed journal Frontiers in Physics. The paper, titled ‘One-dimensional Multi-channel Photonic Crystal Resonators based on Silicon-On-Insulator with High Quality Factor‘, describes exciting developments in Fabry-Pérot resonator cavities, with tuneability provided by liquid crystals.

Devices were designed and tested to produce exceptionally high quality factor resonances. The resonances  could then be split further, increasing the quality factor, by tuning with microfluidically integrated liquid crystals.

The published research opens up new possibilities in silicon photonics, a technology that promises to revolutionise the future of computing globally, and refractive index sensing, which- for example- could lead to advances in medical diagnostics.

This international work was produced from the collaboration between researchers in:

  • The Baldycheva laboratory
  • The EPSRC Centre for Doctoral Training in Electromagnetic Metamaterials at the University of Exeter
  •  Trinity College, Dublin, Ireland
  • Saint Petersburg State University of Information Technologies, Mechanics and Optics, Russia
  • Ioffe Institute (RAS), Russia

The paper has been distributed with open-access.

Correspondence regarding this research should be addressed to:

Prof. Tatiana S. Perova, Trinity College, Dublin: [email protected]
Prof. Anna Baldycheva, University of Exeter: [email protected]

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