TY  - JOUR
AU  - Liu, Mingshan
AU  - Junk, Yannik
AU  - Han, Yi
AU  - Yang, Dong
AU  - Bae, Jin Hee
AU  - Frauenrath, Marvin
AU  - Hartmann, Jean-Michel
AU  - Ikonic, Zoran
AU  - Bärwolf, Florian
AU  - Mai, Andreas
AU  - Grützmacher, Detlev
AU  - Knoch, Joachim
AU  - Buca, Dan
AU  - Zhao, Qing-Tai
TI  - Vertical GeSn nanowire MOSFETs for CMOS beyond silicon
JO  - Communications engineering
VL  - 2
IS  - 1
SN  - 2731-3395
CY  - [London]
PB  - Nature Publishing Group UK
M1  - FZJ-2023-02380
SP  - 7
PY  - 2023
AB  - The continued downscaling of silicon CMOS technology presents challenges for achieving the required low power consumption. While high mobility channel materials hold promise for improved device performance at low power levels, a material system which enables both high mobility n-FETs and p-FETs, that is compatible with Si technology and can be readily integrated into existing fabrication lines is required. Here, we present high performance, vertical nanowire gate-all-around FETs based on the GeSn-material system grown on Si. While the p-FET transconductance is increased to 850 µS/µm by exploiting the small band gap of GeSn as source yielding high injection velocities, the mobility in n-FETs is increased 2.5-fold compared to a Ge reference device, by using GeSn as channel material. The potential of the material system for a future beyond Si CMOS logic and quantum computing applications is demonstrated via a GeSn inverter and steep switching at cryogenic temperatures, respectively.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001478243600001
DO  - DOI:10.1038/s44172-023-00059-2
UR  - https://juser.fz-juelich.de/record/1008543
ER  -