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首页> 外文期刊>Journal of Materials Science >Electronic properties of polyvinylpyrrolidone at the zinc oxide nanoparticle surface
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Electronic properties of polyvinylpyrrolidone at the zinc oxide nanoparticle surface

机译:聚乙烯吡咯烷酮在氧化锌纳米粒子表面的电子性质

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摘要

We investigated the electrical effects of polyvinylpyrrolidone (PVP), used as a dispersion agent in zinc oxide (ZnO) nanodispersions. We found PVP reduces the high surface conductivity and atmospheric sensitivity. Compared with polymer free ZnO thin films, the nanoparticulate layers with PVP exhibit a smaller density of thermally active charge carriers, a reduced density of trap states, and a Fermi level shift toward the valence band, yielding improved performance, vanishing hysteresis characteristics and reduced atmospheric sensitivity in thin film transistors (TFT). In addition, we discuss the attachment of PVP to the ZnO surface.
机译:我们研究了聚乙烯吡咯烷酮(PVP)的电效应,该聚乙烯吡咯烷酮用作氧化锌(ZnO)纳米分散体中的分散剂。我们发现PVP降低了高表面电导率和大气敏感性。与不含聚合物的ZnO薄膜相比,具有PVP的纳米颗粒层表现出较小的热活性电荷载流子密度,降低的陷阱态密度和费米能级向价带移动,从而提高了性能,消失了磁滞特性并减少了大气薄膜晶体管(TFT)的灵敏度。此外,我们讨论了PVP在ZnO表面的附着。

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