Hongmei Li

TL;DR: In this article, the authors evaluated the contact resistance of amorphous Si ( a- Si:H)/transparent conducting oxide (TCO) in terms of the contribution to the series resistance ( R s ) and fill factor ( FF ) in the Si heterojunction back-contact (HBC) solar cell.

TL;DR: Graphene-based ion sensitive field effect transistors (GISFETs) with high sensitivity and selectivity for K+ ion detection have been demonstrated utilizing valinomycin based ion selective membrane as discussed by the authors.

TL;DR: It is shown that conventional dip-coating technique can offer fabrication of high quality mono- and bilayered films made of GO sheets, based on the recent discovery that encapsulating individual GO sheets in a nanometer thick molecular brush copolymer layer allows for the nearly perfect formation of the GO layers via dip coating from water.

TL;DR: The oxygen plasma treated graphene was found to exhibit much stronger sensitivity toward NH3 molecules both in terms of magnitude and response rate, attributable to increased domain edges and oxygen adsorption related enhancement in p-type doping.

TL;DR: In this paper, the authors investigated conductivity, carrier concentration and carrier mobility in graphene as a function of time in response to ionized donor and acceptor adsorbates, and found that a reduction in conductivity and hole density was observed upon exposure to a weak electron donor NH3, while the carrier mobility was found to increase monotonically.