@article{SisLab3396,
          volume = {28},
          number = {4},
           month = {December},
          author = {Minh Long Lam and Nang Dinh Nguyen and Quang Trung Tran},
           title = {Characterization of NH3 sensing properties of P3HT+rGO+CNT composite films made by spin-coating},
         journal = {Communications in Physics},
           pages = {369--377},
            year = {2018},
             url = {https://eprints.uet.vnu.edu.vn/eprints/id/eprint/3396/},
        abstract = {Thin films of poly(3-hexylthiophene) (P3HT) incorporated with reduced graphene oxide (rGO) and multi-walled carbon nanotubes (CNTs) were prepared by spin-coating technique.
Atomic force microscope (AFM) surface morphology, UV-Vis spectra and NH3 gas sensing of the films were studied. Results showed that the P3HT embedded with a content of 20 wt.\% of rGO and 10 \% of CNTs (abbreviated to P3GC) resulted in the formation of nanostructured composites,
exhibiting 1.50 nm-roughness surface and a semiconducting material with a bandgap of 1.92eV. These structure and composition of the P3GC film are appropriate for making film sensors, whose resistance changes as a function of gas concentration. Monitoring ammonia gas by the sensors showed that the responding time of the sensing reached a value as fast as 30 s, the response at ammonia gas content of 10 ppm attained a value as large as 0.8\% and the relative sensitivity was
of 0.05 \%/ppm.}
}