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We observe two components of the photovoltage signal. One component is gate-voltage dependent, linear in power at room temperature and sub-linear at low temperature-consistent with the hot-electron photothermoelectric effect due to absorption in the graphene. The power dependence is consistent with supercollision-dominated cooling in graphene. The other component is gate-voltage independent and linear in temperature and power, which we interpret as due to thermoelectricity of the metal electrodes due to differential light absorption.<\/jats:p>","DOI":"10.1038\/srep14803","type":"journal-article","created":{"date-parts":[[2015,10,6]],"date-time":"2015-10-06T09:55:20Z","timestamp":1444125320000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Pulsed Near-IR Photoresponse in a Bi-metal Contacted Graphene Photodetector"],"prefix":"10.1038","volume":"5","author":[{"given":"Xinghan","family":"Cai","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ryan J.","family":"Suess","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H. 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