Title :
Modification of Sensing Properties of Thin Polymer Films by VUV Irradiation
Author :
Sarantopoulou, E. ; Kollia, Z. ; Manoli, K. ; Sanopoulou, M. ; Goustouridis, D. ; Chatzandroulis, S. ; Raptis, I.
Author_Institution :
Nat. Hellenic Res. Found., Athens
Abstract :
The use of patternable polymeric films and their subsequent VUV irradiation treatment to engineer individual sensitivities in chemical sensor arrays is proposed. The structural changes of irradiated areas involve scission of polymeric chains, cross-linking and formation of new bonds. In addition, 157 nm induces surface and volume morphological changes in the micro/nano domain with different shapes, depending on the irradiation conditions. The effect of VUV irradiation on the swelling properties of polymethylmethacrylate (PMMA) thin films in certain analytes is studied using white light reflectance spectroscopy. The relative expansion of the PMMA film was clearly found to depend on the irradiation conditions.
Keywords :
bonds (chemical); chemical sensors; optical films; optical polymers; polymer films; reflectivity; sensor arrays; surface morphology; swelling; ultraviolet radiation effects; ultraviolet spectra; VUV irradiation treatment; bond cross-linking; bond formation; chemical sensor arrays; patternable polymeric films; polymeric chains; polymethylmethacrylate thin films; surface morphological changes; swelling properties; volume morphological changes; white light reflectance spectroscopy; Chemical sensors; Chemistry; Nitrogen; Optical films; Optical surface waves; Polymer films; Sensor arrays; Substrates; Surface morphology; Surface treatment; PMMA modification; VUV polymer surface treatment; polymer sensors; swelling;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems Conference, 2007. TRANSDUCERS 2007. International
Conference_Location :
Lyon
Print_ISBN :
1-4244-0842-3
Electronic_ISBN :
1-4244-0842-3
DOI :
10.1109/SENSOR.2007.4300199
