Papers by Keyword: Spin-Coating Film

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Authors: Qiang Li, Li Hua Huo, Shan Gao, Xiao Juan Qi, Hui Zhao
Abstract: The thin films of copper 2, 9, 16, 23-tetra-iso-propoxy phthalocyanine (i-pro-CuPc) were prepared by spin-coating technique. The surface morphology and spectroscopy property of the thin films were characterized by AFM, UV-Vis and FT-IR spectra. The results show that good films can be obtained under certain spinning speed. The gas-sensing properties of the multilayers to three alcohols gas were measured at room temperature. The spin-coating thin films exhibited high sensitivity and rapid response- recovery characteristics to these gases. The response and recovery time of the thin films to 30*10-6 v/v of C2H5OH vapor is only 28 s and 55 s, respectively.
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Authors: Xiao Qing Zhou, Bin Wang, Zhi Xue Han, Yi Qun Wu, Zhi Min Chen, Chun Ying He
Abstract: Spin-coating films of Lead(II) tetrakis(4-cumylphenoxy) phthalocyanine (4-PbPc) were prepared and characterized by FT-IR and UV-vis spectra. The results show that the ideal different thickness spin-coating films of 4-PbPc are fabricated by different spin-coating concentration. The response of the films was investigated with respect to NH3 at room temperature. Moreover, the response and recovery properties and the effect of the film thickness on gas sensing performance are also discussed. The results indicate that the films display a high and fast response and good reversibility to NH3 and the 4-PbPc spin-coating films which could be explored as an NH3 sensor at room temperature.
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