IDEA #4MHHG1 Nanocomposite Thin Film Sensors

THE SCIENCE AND TECHNOLOGY CENTER IN UKRAINE Fig. 1. a – scheme of deposition installation, b – plasmon band change during deposition of Au+polymer film Fig. 2. a – TEM image of Au+PTFE films, b – waveguide sensor NANOCOMPOSITE THIN FILM SENSORS Description 25 years experience in all chain necessary for sensor devel(cid:28) opments: compound modeling, design and synthesis, ther(cid:28) mal, electron gun, laser, plasma, CVD and combinations of that technologies in one run for production of nano(cid:28)com(cid:28) posite films, film characterization in situ by optical spec(cid:28) troscopy, AFM, TEM, modeling of nano(cid:28)composite prop(cid:28) erties, sensor arrays design, optical and electrical proper(cid:28) ties measurements, software design. 1. Waveguide optical sensor and electrical one. 2. Deposition technologies for Teflon (PTFE), polypara(cid:28) phenylene sulfide (PPS) and Parylene films. 3. Metal(oxide)(cid:28)dye(cid:28)polymer nanocomposite films. Materials and deposition technologies. 4. Synthesis of new evaporable dyes. 5. Multi(cid:28)layered systems. 6. Tests for organic and inorganic agents including toxic analytes in real probes. Innovative Aspect and Main Advantages The integrated both optical and electrical sensor arrays based on the nano(cid:28)structured thin films. Most robust insoluble polymers for aggressive environment. Dye syn(cid:28) thesis taking into account deposition technology. No liquid during deposition of multi(cid:28)layered systems. Combination of different kinds of materials in one nano(cid:28)composite film with new properties. Easy production of gradient films. Standard base industrial vacuum equipment with mask deposition process. Sensor microchip arrays with several various sensitive dopants. Areas of Application Optical and electrical sensors based on most stable and inert polymers will be used for environment monitoring including hazardous processes in industry: – Control of pollutant level of organics and toxic impurity in environment; – Food and beverages quality control; – Revealing of the sources of pollutions; – Molecular recognition of complex gas mixtures in the "electronic nose" type instrument. PTFE films filled with metal and dye nano(cid:28)clusters can find applications in chemical catalysis, biochips, optical and photonics devices. PTFE, PPX and PPS can be used in waveguide as materials with low and high refractive indices. Filled with selectively sensitive compounds poly(cid:28) mer waveguides are able to execute active functions in integrated(cid:28) optic and electric sensor devices. We consider our developments as ready for presentation for farther development of technologies and installations on industrial level. Stage of Development Sensors and deposition technologies on R&D level. New dyes and new materials for sensors on scientific level. 18 Fig. 3. 6%channel sensor based on the Au electrode system with sensitive nano%porous films on the electrodes Fig. 4. Optical and electrical response of the sensors Contact Details Contact person: Konstantin Grytsenko Institute of Semiconductor Physics Address: 41 pr. Nauki, Kyiv 03028, Ukraine Tel: +380 44 525 97 06 Fax: +380 44 525 55 30 E(cid:28)mail: D_gryts@isp.kiev.ua D_gryts@hotmail.com Web(cid:28)site: www.geocities.com/grytsenkok/index.html SCIENCE AND INNOVATION. Special Issue, 2007