Research Directions

RESEARCH DIRECTIONS / OBJECTIVES

 The Transparent Conductive Materials (TCM) Group (http://tcm.iesl.forth.gr) has an accumulated experience of more than 25 years in composing new materials (powders, films) while using a wide range of characterization techniques. Particularly the TCM group is working on the development and synthesis of new Metal Oxides Nanomaterials (for Sensing, Optical, Optoelectronics, Electronic, Photochromic and Photo-Catalytic applications) for:

  • Development of a new type of metal oxide Gas Sensors for environmental mainly monitoring indoor air quality (iAQ). Study the gas sensing properties of different materials
  • ·  Reducing Gas Molecules (e.g. CO, H2, CH4, ethanol, propane)
  • ·  Oxidising Gas Molecules (e.g. NO2, O3, SO2, Cl2)
  • Synthesis of Innovative Photo-Catalysts for air (indoor/outdoor) and water depollution as well as bacteria disinfection which can effectively be activated under UV and particularly visible light.
  • Development of n- and p-type Metal Oxides of TCOs and ASOs
  • Transparent Thin Films Transistors (TTFTs) for transparent Electronics
  • Flexible Electronics on PET, PEN substrate
  • Development of Electrochromic/Thermocromic materials and devices
  • Hydrophilic / Hydrophobic self - cleaning surfaces for House – hold applications

 

In detail, the TCM group has a very successful track-record on:

  • Metal-Oxide (MO) gas sensing materials and devices highlighted by ultra-low detection limits for gases such as O3 and NO2 in the low ppb range at room temperature at world record levels (i.e. <10ppb for O3 , <0.5ppm for NO2 )Photo-Catalytic materials / transition metals undoped/doped for IAQ control
  • Degradation of Dye’s (set- up by ISO standards to measure the photocatalytic degradation in Methylene Blue, Methyl Orrange, Rhodamine 6G and others)
  • Degradation of inorganic compounds (NOx, SOx, ….) and Volatile Organic Compounds, VOCs (formaldehyde, acetaldehyde, benzene, toluene…)

 

The group expertise on the field of Metal Oxides has an international character and recognition that besides publications is underlined by the initiation and permanent hosting of the International Symposium on TCOs organized in 2006, 2008, 2010, 2012 (as International Symposium on Transparent Conductive Materials) and projected to 2014.

At the same time, particular emphasis is given over the last few years on the strategic subject of photocatalysis with focused efforts on the synthesis and applications of visible light activated materials (powders) aiming towards improved indoor air quality applications. The technology has been patented in the EU (PCT/EP2010/070872). Development and wide spreading of this technology may lead to significant reduction of pollution levels, as well as pollutants-related disease and sickness, such as asthma, with concurrent reduction of medical costs. The technology was shortlisted as one of the top 10 innovations in the Greek “1nd Competition of Applied Research and Innovation” 2012 while there is a stated interest by companies for the exploitation of these technologies. The group strategic plans for the immediate future include activities in the area of Transparent flexible inorganic inkjet printing technologies for sensors, photocatalysts and printed circuit  interconnects.

 

 Future Plans

  • Expand on Gas and UV sensing materials on rigid and flexible substrates
  • Expand on the synthesis and utilization of Photocatalytic materials with emphasis on indoor air quality control
  • Expand on Thermochromic materials based on solution materials on flexible substrates
  • Expand on transparent electronic applications (active –passive devices)
  • Expand on the initiative on Printed Structures (for Transparent Flexible Electronics/photocatalysis/ sensing). Development of inks (in collaboration with JSI Slovenia) utilizing state-of-the-art inkjet technologies

 

 HIGHLIGHTS

 In the last few years, particular emphasis is given on the strategic subject of photocatalysis with focused efforts on the synthesis and applications of visible light activated materials (powders) aiming towards improved indoor air quality applications. Development and wide spreading of this technology may lead to significant reduction of pollution levels, as well as pollutants-related disease and sickness, such as asthma, with concurrent reduction of medical costs. These activities run in parallel with TCM’s group  very successful track-record on Metal-Oxide (MO) gas sensing materials and devices highlighted by ultra-low detection limits for gases such as O3 and NO2 in the low ppb range at room temperature at world record levels (i.e. <10ppb for O3 , <0.5ppm for NO2 ).

Additional information