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arXiv 1102.2308cond-mat.mes-hallcond-mat.mtrl-sci
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石墨烯基场效应晶体管传输特性双谷的起源--电荷转移和俘获

Charge transfer and trapping as origin of a double dip in the transfer characteristics of graphene based field-effect transistors

Antonio Di Bartolomeo, Filippo Giubileo, Salvatore Santandrea, Francesco Romeo, Roberta Citro, Thomas Schroeder, And Grzegorz Lupina

摘要:

我们讨论的起源以外的石墨烯基场效应晶体管的传输特性中观察到的电荷中性点的额外的下降。考虑到从中性点到沟道的费米能级不同以及接触处的部分电荷钉扎,我们提出了一个模型来解释栅电压环的所有特征.

英文摘要:

We discuss the origin of an additional dip other than the charge neutrality point observed in transfer characteristics of graphene-based field-effect transistors. The double-dip is proved to arise from charge transfer between graphene and metal electrodes, while charge storage at the graphene/SiO2 interface enhances it. Considering different Fermi energy from the neutrality point along the channel and partial charge pinning at the contacts, we propose a model which explains all features in gate voltage loops.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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