Block copolymers for direct self-assembly
Highly ordered lamellar morphology through the use of the graphoepitaxy methodology – Photo: courtesy CEA-LETI
The production of a surface with an ultra dense array of addressable nanoscopic elements that is perfectly ordered over macroscopic length scales is a formidable challenge. Block copolymers through their self assembly at the nanometer scale
Organic Photovoltaics
TEM Images of P3HT/PCBM active layer without block copolymers (left) and with block copolymer (right). Scale bar corresponds to 500 nm.
New Materials for Organic Photovoltaics (OPV) : design, synthesis and characterization of semiconducting polymers and copolymers for organic solar cells with better efficiency and stability.
Our… Continue reading
Nanocomposites based on polymers for thermoelectric applications
Thermoelectric systems are very effective in harvesting electricity from waste heat or heat sources with low temperature gradients relative to the environmental temperature. Low temperature gradients are inadequate for power generation using conventional systems but are often present in the environment (e.g., solar and geothermal energy)… Continue reading
Organic non-volatile memories
AFM image : Structure of phase-separated ferroelectric/semiconducting polymer blends
Organic non-volatile memories are a promising development for ferroelectric polymeric materials issued from the macromolecular engineering.
Due to their intrinsic ferroelectric behavior they appear as potential candidates for new developments in the memories technology. Indeed ferroelectric… Continue reading
Transparent Conductive Electrodes
Transparent conductive electrodes : development of alternative technologies to ITO (Indium Tin Oxide).
The search for novel electrode materials with good stability, high transparency, low roughness and excellent conductivity is a crucial goal for optoelectronics and organic photovoltaics in particular.
Our approach is based on the preparation… Continue reading