Practical Chemical Sensors from Chemically Derived Graphene Export

@article{citeulike:4235621, abstract = {We report the development of useful chemical sensors from chemically converted graphene dispersions using spin coating to create single-layer films on interdigitated electrode arrays. Dispersions of graphene in anhydrous hydrazine are formed from graphite oxide. Preliminary results are presented on the detection of NO2, NH3, and 2,4-dinitrotoluene using this simple and scalable fabrication method for practical devices. Current versus voltage curves are linear and ohmic in all cases, studied independent of metal electrode or presence of analytes. The sensor response is consistent with a charge transfer mechanism between the analyte and graphene with a limited role of the electrical contacts. A micro hot plate sensor substrate is also used to monitor the temperature dependence of the response to nitrogen dioxide. The results are discussed in light of recent literature on carbon nanotube and graphene sensors.}, author = {Fowler, Jesse D. and Allen, Matthew J. and Tung, Vincent C. and Yang, Yang and Kaner, Richard B. and Weiller, Bruce H.}, citeulike-article-id = {4235621}, citeulike-linkout-0 = {http://dx.doi.org/10.1021/nn800593m}, citeulike-linkout-1 = {http://pubs.acs.org/doi/abs/10.1021/nn800593m}, day = {24}, doi = {10.1021/nn800593m}, journal = {ACS Nano}, keywords = {graphene, graphene-applications, graphene-fabrication}, month = {February}, number = {2}, pages = {301--306}, posted-at = {2009-03-29 23:20:57}, priority = {2}, title = {Practical Chemical Sensors from Chemically Derived Graphene}, url = {http://dx.doi.org/10.1021/nn800593m}, volume = {3}, year = {2009} }

TY - JOUR ID - citeulike:4235621 L3 - citeulike-article-id:4235621 N2 - We report the development of useful chemical sensors from chemically converted graphene dispersions using spin coating to create single-layer films on interdigitated electrode arrays. Dispersions of graphene in anhydrous hydrazine are formed from graphite oxide. Preliminary results are presented on the detection of NO2, NH3, and 2,4-dinitrotoluene using this simple and scalable fabrication method for practical devices. Current versus voltage curves are linear and ohmic in all cases, studied independent of metal electrode or presence of analytes. The sensor response is consistent with a charge transfer mechanism between the analyte and graphene with a limited role of the electrical contacts. A micro hot plate sensor substrate is also used to monitor the temperature dependence of the response to nitrogen dioxide. The results are discussed in light of recent literature on carbon nanotube and graphene sensors. IS - 2 JF - ACS Nano EP - 306 TI - Practical Chemical Sensors from Chemically Derived Graphene VL - 3 SP - 301 KW - graphene KW - graphene-applications KW - graphene-fabrication AU - Fowler, Jesse AU - Allen, Matthew AU - Tung, Vincent AU - Yang, Yang AU - Kaner, Richard AU - Weiller, Bruce PY - 2009/02/24/ UR - http://dx.doi.org/10.1021/nn800593m ER -