ORGANIC THIN-FILM PYROSENSORS

Recent developments in sensor technology show the suitability of thin pyroelectric films for the construction of pyroelectric sensor devices made from polymer materials. These materials are used for its advanta geous thermal properties and also for its suitable frequency behaviour . Pyroelectrical measurements have been provided on thin films based u pon poly(vinyl alcohol)s and poly(siloxane)s with azobenzene side chai ns. Relaxation behaviour and stability of poled pyroelectric polymers are discussed and related to the results of dipole relaxation measurem ents provided at our laboratories.