Guangzhong Xie

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In this paper, a new heterogeneous wireless sensor networks (HWSNs) model with energy heterogeneity and computational heterogeneity is proposed. Energy dissipation structure and optimal cluster head number function in HWSNs are obtained based on mathematics model, providing the guidance for designing energy efficient clustering routing protocols. Besides,(More)
A thin-film transistor (TFT) having an organic-inorganic hybrid thin film combines the advantage of TFT sensors and the enhanced sensing performance of hybrid materials. In this work, poly(3-hexylthiophene) (P3HT)-zinc oxide (ZnO) nanoparticles' hybrid thin film was fabricated by a spraying process as the active layer of TFT for the employment of a room(More)
Single walled carbon nanotubes (SWNTs) were deposited on interdigital electrode (IDE) devices and quartz crystal microbalance (QCM) devices through layer-by-layer self-assembly method to fabricate resistance sensitive and mass sensitive gas sensors, respectively. Their ammonia gas-sensitive characteristics were detected at different temperature. It is(More)
Inorganic nanoparticles SnO<inf>2</inf> and In<inf>2</inf>O<inf>3</inf> were dispersed using an in situ synthesis technique in one of the polyynes polymer, namely poly-2, 5-dimethoxyethynylbenzene(PDMEB) to prepare organic-inorganic nanocomposites PDMEB/SnO<inf>2</inf> and PDMEB/In<inf>2</inf>O<inf>3</inf>. The nanocomposites were characterized by FT-IR,(More)
Pure polyvinylpyrrolidone (PVP) film, reduced graphene oxide (RGO) film and PVP/RGO composite film were coated on quartz crystal microbalance (QCM) for nitrogen oxide (NO<sub>2</sub>) sensing at room temperature. These films were characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM), respectively. Because(More)
In this paper, solvent-functionalized CNTs are coated on mass-sensitive quartz crystal microbalance (QCM) devices to study their gas-sensing properties for volatile organic compounds (VOCs) at room temperature. The results indicate that different solvent-functionalized CNTs under the same conditions have the dissimilar response and similar VOCs to the(More)
In this work, in order to enhance the recovery performance of organic thin film transistors (OTFTs) ammonia (NH3) sensors, poly (3-hexylthiophene) (P3HT) and molybdenum disulfide (MoS2) were combined as sensitive materials. Different sensitive film structures as active layers of OTFTs, i.e., P3HT-MoS2 composite film, P3HT/MoS2 bilayer film and MoS2/P3HT(More)
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