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dc.contributor.authorQin, Wei
dc.contributor.authorGong, Maogang
dc.contributor.authorShastry, Tejas
dc.contributor.authorHersam, Mark C.
dc.contributor.authorRen, Shenqiang
dc.identifier.citationWei Qin, Maogang Gong, Tejas Shastry, Mark C. Hersam, Shenqiang Ren. "Charge-Transfer Induced Magnetic Field Effects of Nano-Carbon Heterojunctions." Sci Rep. 2014; 4: 6126. Published online 2014 August 22.
dc.description.abstractRoom temperature magnetic field effects have not been definitively observed in either single-walled carbon nanotubes (SWCNTs) or C60 under a small magnetic field due to their weak hyperfine interaction and slight difference of g-factor between positive and negative polarons. Here, we demonstrate charge-transfer induced magnetic field effects in nano-carbon C60-SWCNT bulk heterojunctions at room temperature, where the mechanism of magnetic field effects is verified using excited state transition modeling. By controlling SWCNT concentrations and interfacial interactions, nano-carbon heterojunctions exhibit tunability of charge-transfer density and room temperature magnetoconductance of 2.8% under 100 mT external magnetic field. External stimuli, such as electric field and photoexcitation, also play an important role in controlling the magnetic field effects of nano-carbon heterojunctions, which suggests that these findings could enable the control of optoelectronic properties of nano-carbon heterojunctions.
dc.description.sponsorshipS.R. thanks the financial support from the Army Research Office - Young Investigator Award (W911NF-14-1-0443) for nanocarbon self-assembly and optoelectronics, and US Department of Energy award (DE-FG02-13ER46937) for organic magnetic study. M.C.H. acknowledges funding from the National Science Foundation (DMR-1006391). T.S. is supported by a National Science Foundation Graduate Research Fellowship and the ANSER Center, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Award Number DE-SC0001059.
dc.publisherNature Publishing Group
dc.titleCharge-Transfer Induced Magnetic Field Effects of Nano-Carbon Heterojunctions
kusw.kuauthorQin, Wei
kusw.kuauthorGong, Maogang
kusw.kuauthorRen, Shenqiang
kusw.kudepartmentDepartment of Chemistry
kusw.oaversionScholarly/refereed, publisher version
kusw.oapolicyThis item meets KU Open Access policy criteria.

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