Bi doping

This strong doping effect is stable enough to last for more than 10 months under ambient conditions due to the barrier properties of graphene covering the BI dopants. Also, graphene (BI graphene) showed excellent sheet resistance as low as ∼200 ohm/sq and high carrier concentration.

S. J. Kim et al. Simultaneous Etching and Doping by Cu-Stabilizing Agent for High-Performance Graphene-Based Transparent Electrodes. Chem. Mater., 2014, 26 (7), pp 2332–2336.

Dry transfer

If your substrate cannot go though a Wet graphene transfer method based upon its solubility in water or in acetone, then the other option is Graphene Square's Dry transfer method. The first option is using our patented Thermal Release Tape [TRT] or the Pressure Sensitive Adhesive Film [PSAF].

(1)S. Bae et al. "Roll-to-roll production of 30 inch graphene films for transparent electrodes" Nature Nanotech. 5, 574 (2010) (Cover Article)
(2)S. J. Kim*, T. Choi* et al. "Ultra-Clean Patterned Transfer of Single-Layer Graphene by Recyclable Pressure Sensitive Adhesive Films" Nano Letters 15, 3236–3240 (2015).

Multi-stacked graphene

K. J. Choi et al. "Reduced Water Vapor Transmission Rate of Graphene Gas Barrier Films for Flexible Organic Field-Effect Transistors" ACS Nano 9, 5818–5824 (2015).