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Lithium-ion-based solid electrolyte tuning of the carrier density in graphene.

ABSTRACT: We have developed a technique to tune the carrier density in graphene using a lithium-ion-based solid electrolyte. We demonstrate that the solid electrolyte can be used as both a substrate to support graphene and a back gate. It can induce a change in the carrier density as large as 1?×?10¹⁴?cm^-2, which is much larger than that induced with oxide-film dielectrics, and it is comparable with that induced by liquid electrolytes. Gate modulation of the carrier density is still visible at 150?K, which is lower than the glass transition temperature of most liquid gating electrolytes.

SUBMITTER: Zhao J

PROVIDER: S-EPMC5048137 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature

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Lithium-ion-based solid electrolyte tuning of the carrier density in graphene.

Zhao Jialin J Wang Meng M Li Hui H Zhang Xuefu X You Lixing L Qiao Shan S Gao Bo B Xie Xiaoming X Jiang Mianheng M

Scientific reports 20161004

We have developed a technique to tune the carrier density in graphene using a lithium-ion-based solid electrolyte. We demonstrate that the solid electrolyte can be used as both a substrate to support graphene and a back gate. It can induce a change in the carrier density as large as 1 × 10<sup>14</sup> cm<sup>-2</sup>, which is much larger than that induced with oxide-film dielectrics, and it is comparable with that induced by liquid electrolytes. Gate modulation of the carrier density is still ...[more]

PMID: 27698413

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