Graphene a 1-atom thick sheet of carbon in hexagonic crystal lattice. 200x stronger than steel. Tougher than diamond. World's thinnest material. Flexible, transparent. Conducts el and heat very well. Stocks: AIXG, CVV, FCSMF, NGPHF, GTI, CHGI, PKX
Harvard developing graphene-based electronically-tunable plasmonic mid-infrared antenna array. Useful for multi-analyte sensors, reconfigurable meta-surfaces, opto electronic devices. 1st-time tuning by applying voltage. Graphene sheet placed in nanogap of dipole antenna.
Graphene-vanadium ribbons enable ultrafast lithium-ion batteries. Rice U. Vanadium-oxide, graphene oxide. Superior lith-ion cathodes. Materials relatively abundant, cheap. Charge, discharge in 20 seconds. Retains up to 90% of capacity after up to 1K cycles.
Columbia U: Graphene can be hole-doped or electron-doped. Very sensitive to local enviro. Scanning tunneling microscopy studied graphene films exfoliated onto cleared mica (ultra flat material that contains surface el dipoles). Graphene remains undoped immediately above water molecules, but becomes p-doped on surrounding mica and n-doped near potassium ion.
China's Zhejiang U developed sponge-like solid material (graphene aerogel). Freeze-dried carbon and graphene oxide. Lightest material ever made. 2x density of hydrogen.
Graphene and molybdenite (MoS2) laced flash memory efficient, flexible, small, fast. Field effect geometry. MoS2 in mid layer that channels electrons. Electrodes on top, bottom of graphene. EPFC making it.
Lockheed Martin new graphene-based water desalination tech. Commercial by '14-'15. Graphene filter 500x thinner than current tech. ~100x less energy needed. "Perforene." Prototype drop-in by yearend.
American Graphene Tech and partner CTI Nanotech producing graphene paper samples. Highly conductive. Hope to achieve low-cost roll-to-roll production.
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