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. 2021 Aug 2;11(8):1986. doi: 10.3390/nano11081986

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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(a) Exponential-fitted curve for the magnitude of current at −2 V; (b) Exponential-fitted curve for the zero-bias differential resistance of the geometric diode with different neck width; (c) Exponential-fitted curve for the zero bias-responsivity of the geometric diode with different neck width. (d) The resistance and responsivity of the 50 nm neck width geometric diode at a small V_DS range of −0.5 V to 0.5 V.

(a) Exponential-fitted curve for the magnitude of current at −2 V; (b) Exponential-fitted curve for the zero-bias differential resistance of the geometric diode with different neck width; (c) Exponential-fitted curve for the zero bias-responsivity of the geometric diode with different neck width. (d) The resistance and responsivity of the 50 nm neck width geometric diode at a small V_DS range of −0.5 V to 0.5 V.