TY - JOUR
T1 - Dual-Mode Reconfigurable Split-Gate Logic Transistor through Van der Waals Integration
AU - Chen, Xue
AU - Xue, Haozhe
AU - Wen, Yu
AU - You, Kai
AU - Jiang, Bei
AU - Ding, Guanglong
AU - Zhou, Kui
AU - Zhao, Zherui
AU - Yan, Yan
AU - Zhang, Meng
AU - Roy, Vellaisamy A.L.
AU - Han, Su Ting
AU - Li, Feng
AU - Kuo, Chi Ching
AU - Zhou, Ye
N1 - Publisher Copyright:
© 2024 American Chemical Society.
PY - 2024/10/3
Y1 - 2024/10/3
N2 - As silicon-based transistors approach their physical size limitations, two-dimensional material-based reconfigurable functional electronic devices are considered the most promising novel device architectures beyond Moore strategies. While these devices have garnered significant attention, they often require complex device fabrication processes and extra electric fields. Additionally, the device performance is usually limited by the metal-semiconductor interface properties. In this Letter, we have constructed a reconfigurable logic device based on a WSe2 transistor with a nanofloating gate and split-gates through van der Waals integration. This device achieves a small Schottky barrier height due to the van der Waals contacts. By varying the split-gate biases, we can realize volatile reconfigurable homojunctions as well as AND, OR, NOR, and NAND logic operations with just a single device. Furthermore, with the charge trapping effect of nanofloating gate, we can also achieve nonvolatile reconfigurable homojunctions, as well as AND and OR logic operations. The volatile and nonvolatile logic operations are similar to the short-term plasticity and long-term plasticity, respectively, of synapses in the human brain. This work offers a potential approach for creating novel reconfigurable functional electronic devices with a simple fabrication process and low cost.
AB - As silicon-based transistors approach their physical size limitations, two-dimensional material-based reconfigurable functional electronic devices are considered the most promising novel device architectures beyond Moore strategies. While these devices have garnered significant attention, they often require complex device fabrication processes and extra electric fields. Additionally, the device performance is usually limited by the metal-semiconductor interface properties. In this Letter, we have constructed a reconfigurable logic device based on a WSe2 transistor with a nanofloating gate and split-gates through van der Waals integration. This device achieves a small Schottky barrier height due to the van der Waals contacts. By varying the split-gate biases, we can realize volatile reconfigurable homojunctions as well as AND, OR, NOR, and NAND logic operations with just a single device. Furthermore, with the charge trapping effect of nanofloating gate, we can also achieve nonvolatile reconfigurable homojunctions, as well as AND and OR logic operations. The volatile and nonvolatile logic operations are similar to the short-term plasticity and long-term plasticity, respectively, of synapses in the human brain. This work offers a potential approach for creating novel reconfigurable functional electronic devices with a simple fabrication process and low cost.
UR - http://www.scopus.com/inward/record.url?scp=85205604712&partnerID=8YFLogxK
U2 - 10.1021/acs.jpclett.4c02397
DO - 10.1021/acs.jpclett.4c02397
M3 - Article
C2 - 39315653
AN - SCOPUS:85205604712
VL - 15
SP - 9979
EP - 9986
JO - Journal of Physical Chemistry Letters
JF - Journal of Physical Chemistry Letters
IS - 39
ER -