Laser patterned platform with PEDOT–graphene composite film for NO 2 sensing

Recent Trends and Developments in Graphene/Conducting Polymer Nanocomposites Chemiresistive Sensors

“…The in situ polymerization of 3,4-ethylene dioxythiophene (EDOT) monomer was used to deposit PEDOT nanostructure on the surface of rGO sheets. Figure 7 b indicates the SEM image of PEDOT/GO films prepared by a fully electrochemical route and reported by Katarzyna Dunst and his group [ 120 ]. The electro-polymerization and electrochemical reduction of PEDOT/GO were accomplished in GO aqueous solution and 0.1 M KCl at a constant potential, respectively.…”

“…Yajie Yang, et al synthesized a single layer of RGO and PEDOT nanocomposite using LB deposition and an in situ polymerization technique and as they reported, the RGO and PEDOT composite indicated better sensing performance to NO 2 gas compared to the sensor based on pure rGO [ 90 ]. The electro-polymerization technique was used to fabricate a sensing PEDOT/RGO layer and reported by Dunst and his group in Gdansk University of Technology using [ 120 ] and the effect of annealing temperature on the sensing performance of the film under NO 2 were also investigated. The PEDOT/RGO composite showed good sensing performance to NO 2 , higher operating temperature, and improved sensitivity.…”

“… SEM images of ( a ) porous poly (3,4-ethylene dioxythiophene) (PEDOT) layer deposited on rGO Langmuir–Blodgett (LB) films (adapted from reference [ 118 ]), ( b ) PEDOT/rGO film (adapted from reference [ 120 ]), ( c ) transmission electron microscope (TEM) image of graphene–PEDOT:poly (styrenesulfonate) (PSS) nanocomposite (adapted from reference [ 121 ]), and ( d ) SEM image of CuTSPc@3D-(N)GF (adapted from reference [ 122 ]). …”

Characteristics of Graphene Oxide Films Reduced by Using an Atmospheric Plasma System

“…This material was first discovered by Geim and Novoselov, who used adhesive tape to repeatedly cleave highly oriented pyrolytic graphite (HOPG) [ 1 , 2 ]. Due to its excellent optical, electrical, mechanical, physical, and chemical properties, numerous researchers and scholars have developed promising applications of graphene for products such as diaplay panels [ 3 ], solar cells [ 4 ], electronic circuit boards [ 5 ], corrosion prevention [ 6 ], light-emitting diodes (LEDs) [ 7 ], supercapacitors [ 8 ], senesing devices [ 9 ], inspection chips [ 10 ], and thermal heating chips [ 11 ]. In recent decades, many methods have been proposed for fabricating graphene materials, including micromechanical cleavage of HOPG [ 12 ], epitaxial growth method [ 13 ], chemical vapor deposition (CVD) [ 3 ], electrochemical exfoliation of HOPG [ 14 ], light exfoliation [ 15 ], chemical exfoliation [ 16 ], and reduction of graphene oxide (GO) [ 17 ].…”

“Close network” effect of a ZnO micro/nanoporous array allows high UV-irradiated NO2 sensing performance

“…To solve the above problems, a few room temperature NO 2 sensors have been designed and manufactured by using new sensitive materials 11,12 and new techniques, such a micro-electro mechanical system (MEMS) fabrication, 13 doping of novel metals 14,15 and ultraviolet (UV) irradiation etc. 16,17 In these techniques, UV irradiation has attracted increasing attention as a promising strategy.…”