Abstract
In this thesis, we described the self-assembly of pyrene derivative by constructing pentacene / schiff base pyrene derivative(P1) OTFTs for metal and anion sensor. The carrier mobility (µ) of 0.12 cm2/V-s, a threshold voltage (Vth) of -22.20 V, and five orders on/off current ratio device parameters are extracted from bilayer OTFTs. From this device we observed huge change only for Cu2+ among the thirteen metal ions and CN- among the nine anion ions, by changes in Vth and Ioff current for Cu2+ ions whereas Isat decrease for CN- ions. The selectivity of both ions is noticed from the mixed ion solutions. The sensitivity is executed in different concentrations (ranging from 20 to 350 µM) of Cu2+ and CN- ions (ranging from 100 to 350 µM). The self-assembling of pyrene derivative by forming pyrene-pyrene* coordination with Cu2+ and pyrene derivative rods break into smaller pieces by forming benzoxazole ring in CN- ions are conformed by AFM and IR spectra.