01416nas a2200193   4500008004100000022001400041245006000055210006000115260012500175300001100300490000800311520069900319100001801018700002001036700002401056700003001080700002001110856009201130       2013                        eng d  a0003-695100aHysteresis and charge trapping in graphene quantum dots0 aHysteresis and charge trapping in graphene quantum dots  aCIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USAbAMER INST PHYSICScAPR  a1431040 v1023 a<p>We report current hysteresis in response to applied voltage in graphene quantum dots of average diameter 4.5 +/- 0.55 nm, synthesized electrochemically using multiwalled carbon nanotubes. In response to step voltages, transient current decay, characteristic of deep and shallow level charge traps with time constants 186 ms and 6 s, is observed. Discharging current transients indicate charge storage of the order of 100 mu C. Trap states are believed to arise due to the fast physisorption of external adsorbates, which are found to have a significant effect on charge transport and changes the resistance of the prepared device by an order of 3. (C) 2013 American Institute of Physics.</p>1 aKalita, Hemen1 aHarikrishnan, V1 aShinde, Dhanraj, B.1 aPillai, Vijayamohanan, K.1 aAslam, Mohammed  uhttps://library.ncl.res.in/content/hysteresis-and-charge-trapping-graphene-quantum-dots