Structural and rectifying junction properties of self-assembled ZnO nanoparticles in polystyrene diblock copolymers on [100] Si substrates
2005
The study of structural and electrical properties of self-assembled ZnO nanoparticles in polystyrene-acrylic acid, [PS] m /[PAA] n , diblock copolymer on p-type (100) Si substrates is reported. The particles were developed in [PS] m /[PAA] n with four different block repeat spherical nanodomains is used to template the ZnO nanoparticles onto the substrates. Our methodology for the ZnO nanoparticle synthesis involves incorporating the ZnCl 2 precursor in the copolymer in liquid phase, spincasting the doped solution on the substrate and, then converting the precursor into ZnO. Room temperature I-V characteristics of the ZnO nanocomposite film on p-type (100) Si, measured for the first time, exhibited rectifying junction properties with an ideality factor n=1.7, and the transport mechanism in this system was evaluated from the electrical studies and discussed
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