Sci. Adv. Today 3 (2017) 25268  
  Research Article  
   
   
         
Facile solution processed MoS2-PEDOT: PSS mixed structure as flexible paper-based infra-red sensor  
  Vedhikha T. Parthasarathy, Rousan Debbarma, Sanjay Behura, Phong Nguyen, Yu Wen, Dylan Lynch and Vikas Berry  
     
Department of Chemical Engineering, University of Illinois at Chicago, 810 S. Clinton Street, IL 60607, U.S.A.
   
  Abstract  
  As a semiconducting analog of two-dimensional (2D) graphene, molybdenum disulphide (MoS2) monolayer is a three-atom-thick layered transition-metal dichalcogenide (TMD), composed of a stratum of molybdenum atoms sandwiched between two layers of sulfur atoms. The physical, chemical, and opto-electrical properties of MoS2 can be tuned over a wide range by changing its interface and chemistry, opening potential for next generation 2D flexible electronics. Here, we show the fabrication and properties of several electronic circuits ‘written’ on paper by hybrids of inorganic semiconductor MoS2 in conducting polymer poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) and graphite-pencil-drawn-electrodes. We show the electrical, thermal, and opto-electrical properties of these flexible composite devices. Via this process, we envision the evolution of on-demand device fabrication by writing prescribed or innovative ‘scripts’ on paper. Further, such 2D circuitry will evolve into writable/printable, accessible, and cost-effective (and disposable) sensors and electronic devices.  
     
   
  Cite this article as:  
  Vedhikha T. Parthasarathy, Rousan Debbarma, Sanjay Behura, Phong Nguyen, Yu Wen, Dylan Lynch and Vikas Berry, Facile solution processed MoS2-PEDOT: PSS mixed structure as flexible paper-based infra-red sensor, Sci. Adv. Today 3 (2017) 25268.