標題: Exploration and characterization of the memcapacitor and memristor properties of Ni-DNA nanowire devices
作者: Chu, Hsueh-Liang
Lai, Jian-Jhong
Wu, Li-Ying
Chang, Shen-Lin
Liu, Chia-Ming
Jian, Wen-Bin
Chen, Yu-Chang
Yuan, Chiun-Jye
Wu, Tai-Sing
Soo, Yun-Liang
Di Ventra, Massimiliano
Chang, Chia-Ching
生物科技學系
電機學院
Department of Biological Science and Technology
College of Electrical and Computer Engineering
公開日期: 1-Sep-2017
摘要: A 2-mu m-long Ni ion-chelated DNA molecule (Ni-DNA) was found for the first time to possess both memcapacitor and memristor properties; this Ni-DNA molecule is known as a dual memory circuit element (memelement). As a memelement, the state of impedance on Ni-DNA is proportional to the unit number of Ni ions containing a base pair complex (Ni-bp), which is determined by the previously applied external voltage. Interestingly, the impedances of Ni-DNA change in response to a change in the sweeping frequencies of the external bias. Our simulation results also indicate that changes in the effective resistance and capacitance of Ni-bp may be attributed to changes in the Ni ion redox species in the Ni-bp of a Ni-DNA nanowire. Therefore, the working mechanism of a nanowire-type memcapacitor and memristor is revealed. In summary, the Ni-DNA nanowire is shown to be a multi-dimensional memory device, whose memory state depends on the length of DNA and applied external voltages/frequencies.
URI: http://dx.doi.org/10.1038/am.2017.157
http://hdl.handle.net/11536/145997
ISSN: 1884-4049
DOI: 10.1038/am.2017.157
期刊: NPG ASIA MATERIALS
Volume: 9
Appears in Collections:Articles