title: Graphene on paper: a simple, low-cost chemical sensing platform.
abstract: Graphene layers have been transferred directly on to paper without any intermediate layers to yield G-paper. Resistive gas sensors have been fabricated using strips of G-paper. These sensors achieved a remarkable lower limit of detection of ∼300 parts per trillion (ppt) for NO2, which is comparable to or better than those from other paper-based sensors. Ultraviolet exposure was found to dramatically reduce the recovery time and improve response times. G-paper sensors are also found to be robust against minor strain, which was also found to increase sensitivity. G-paper is expected to enable a simple and inexpensive low-cost flexible graphene platform.
authors.affiliation: Centre for Nanoscience and Engineering, Indian Institute of Science , Bangalore, India 560012.
authors.forename: Shishir
authors.initials: S
authors.lastname: Kumar
authors.forename: Swati
authors.initials: S
authors.lastname: Kaushik
authors.forename: Rudra
authors.initials: R
authors.lastname: Pratap
authors.forename: Srinivasan
authors.initials: S
authors.lastname: Raghavan
keywords: gas sensors; graphene; graphene transfer; graphitic sensors; paper