SUPERCONDUCTING ORGANIC THIN-FILMS PREPARED USING AN EVAPORATION TECHNIQUE

Superconducting organic thin films have been produced for the first time making use only of dry processes. The vacuum-evaporation method is suitable for the production of thin films of BEDT-TTF iodide either from electrochemically produced BEDT-TTF iodide or directly from BEDT-TTF and iodine. The insulating films formed in the deposition process are converted to the conducting form by annealing and analyzed using X-ray diffraction (see Figure). The 'dry' nature of the process is advantageous as solvents can damage the fine crystals formed and make the production of homogeneous thin films difficult.