Journal
CHINESE PHYSICS LETTERS
Volume 35, Issue 11, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0256-307X/35/11/117201
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Funding
- National Natural Science Foundation of China [61504120]
- Zhejiang Provincial Natural Science Foundation of China [LR18F040001]
- Fundamental Research Funds for the Central Universities
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Ge complementary tunneling field-effect transistors (TFETs) are fabricated with the NiGe metal source/drain (S/D) structure. The dopant segregation method is employed to form the NiGe/Ge tunneling junctions of sufficiently high Schottky barrier heights. As a result, the Ge p- and n-TFETs exhibit decent electrical properties of large ON-state current and steep sub-threshold slope (S factor). Especially, I-d of 0.2 mu A/mu m is revealed at V-g - V-th = V-d = +/- 0.5 V for Ge pTFETs, with the S factor of 28 mV/dec at 7 K.
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