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Functional materials


Chromogenic materials and devices

Chromogenic materials and devices exhibit tunable optical properties because of influence of external means such as illumination, temperature, pressure, electric or magnetic fields, x-rays, ion-beam radiation, gases or potential. They have strong potential in many technologically important applications: in building and automobile industry by controlling the light and heat transfer through windows, in optoelectronic and medical industry as well as environmental technology as emitting and sensing devices, in stealth program, designed to produce vehicle that are immune to infrared detection and to make them nearly invisible to enemy (the ability to decouple temperature and thermal emission opens a gateway for controlling the visibility of objects to infrared cameras), in aerospace engineering by changeable emissivity of surfaces upon heating, as the spacecraft thermal control, as visors and windows that can control glare for pilots and passengers, etc. Current theoretical and experimental studies aim to further increase the impact that the chromogenic materials and devices can play in technological advances. The Symposium is to bring academic scientists, engineers, and industry to exchange their results about latest developments on the topic.


In recent years, new materials, devices, and new applications came out in the field of chromogenic materials and devices. Some of them are the new x-chromatic devices based on the emerging class of mixed anion materials, polymer-based multicolor x-chromatic devices, new designs of electrochromic devices with enhanced dielectric tunability and self-healing properties, new applications of inorganic photochromic coatings in contact lenses and car industry, photochromic polymers in textile industry, multifunctional photothermochromic materials,  latest achievements on materials engineering for reducing the temperature for tuning reflectivity of thermochromic coatings, innovative smart selective coatings to avoid overheating in highly efficient thermal solar collectors, etc. Furthermore, the recent years have seen the development and improvement in synthesis and characterization techniques such as printing and roll-to-roll deposition of x-chromatic device. Current theoretical and experimental studies aim to further increase the impact that chromogenic materials and systems can play in technological advances. This Symposium will provide an overview of the state of the art and most recent scientific and technical progress as well as the market situation, identification of key areas, challenges, approaches, and technologies in this field along with the life cycle assessment, eco-toxicological assessment and risk assessment. It is multidisciplinary and international. Target groups are young scientists, early stage and experienced researchers from academic Institutions, SME’s and industries. To motivate participation of young researchers and beginners into the Symposium, graduate student awards (GSA) will be arranged. One day tutorial entitled “mixed anion materials, applications in x-chromism, and methods of study” will be arranged. The lectures of the tutorial will be delivered by experienced researchers working in this field. Upon approval, the Symposium organizers will search for sponsors that would cover some of the extra expenses that will be spent to offer partial financial support to contributors from emerging countries. About 40% of the invited speakers are from SME’s and companies that have activity related to chromogenics. So, the Symposium will be excellent platform that reflects the latest news about market needs that can be solved by chromogenics.

Hot topics to be covered by the symposium:

  • Chromogenic (electrochromic, thermochromic, photochromic, gasochromic, magnetochromic, piezochromic) devices;
  • Building-integrated chromogenic devices;
  • Degradation of chromogenic materials and devices;
  • Window-integrated solar powered chromogenic devices;
  • Organic, inorganic and hybrid chromogenic materials;
  • Chromogenic nanomaterial-organic/inorganic composites;
  • Mixed anion materials for chromogenic device applications;
  • Defects and impurities;
  • Theoretical and experimental methods of research;
  • Applications in buildings, ophthalmology;
  • Life-cycle assessment;
  • Thermal regulation;
  • Infrared stealth.

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Symposium organizers

87 Avenue du Dr Albert Schweitzer, 33608 Pessac, France

+33 (0)5 40 00 62 63
Bernard DAMDelft University of Technology, Chemical Engineering

Van der Maasweg 9, Delft, The Netherlands

+31 152784342
Fabien CAPONInstitut Jean Lamour

Campus Artem, 2 allée André Guinier, 54011 Nancy, France

+33 3 72 74 25 96
Smagul KARAZHANOVInstitute for Energy Technology

Instituttveien 18, 2027 Kjeller, Norway

+47 45163599