1 Ocak 2020 Dergi makalesi Açık Erişim

Akkus, Unal Ozden; Balci, Erdem; Berber, Savas

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    <subfield code="a">Mo2TiC2O2 MXene-based nanoscale pressure sensor</subfield>
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    <subfield code="a">We propose Mo2TiC2O2-based quantum transport device as a pressure sensor. Using non-equilibrium Green's function technique, we have investigated the current-voltage characteristics of Mo2TiC2O2-based nanodevice under pressure. In a compressed double MXene, the electronic states originating from the two different transition metals are shifted up unequally. Thus, the character of VBM changes drastically after a critical compression. The proposed nanodevice has moderate pressure sensitivity. While the macroscopic Mo2TiC2O2 sensor is usable only for excess pressure detection, the nanodevice can act as a pressure sensor in a wider pressure range. Given the excellent stability of MXenes, Mo2TiC2O2 is a promising sensor material. The same mechanism of pressure-induced unequal level-shifting could be exploited also in other double MXenes that will be synthesized.</subfield>
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    <subfield code="u">Gazi Univ, Fac Med, Dept Nucl Med, Ankara, Turkey</subfield>
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    <subfield code="u">Gebze Tech Univ, Dept Phys, TR-41400 Kocaeli, Turkey</subfield>
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    <subfield code="a">10.1016/j.physe.2019.113762</subfield>
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