Temperature-stable black phosphorus field-effect transistors through effective phonon scattering suppression on atomic layer deposited aluminum nitride

Autor: Liu Wenjun, Zheng Hemei, Ang Kahwee, Zhang Hao, Liu Huan, Han Jun, Liu Weiguo, Sun Qingqing, Ding Shijin, Zhang David Wei
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Nanophotonics, Vol 9, Iss 7, Pp 2053-2062 (2020)
Druh dokumentu: article
ISSN: 2192-8606
2192-8614
DOI: 10.1515/nanoph-2020-0075
Popis: Black phosphorus (BP) shows great potential in electronic and optoelectronic applications; however, maintaining the stable performance of BP devices over temperature is still challenging. Here, a novel BP field-effect transistor (FET) fabricated on the atomic layer deposited AlN/SiO2/Si substrate is demonstrated. Electrical measurement results show that BP FETs on the AlN substrate possess superior electrical performance compared with those fabricated on the conventional SiO2/Si substrate. It exhibits a large on-off current ratio of 5 × 108, a low subthreshold swing of
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