TY  - JOUR
AU  - Kutovyi, Yurii
AU  - Madrid, Ignacio
AU  - Zadorozhnyi, Ihor
AU  - Boichuk, Nazarii
AU  - Kim, Soo Hyeon
AU  - Fujii, Teruo
AU  - Jalabert, Laurent
AU  - Offenhäusser, Andreas
AU  - Vitusevich, Svetlana
AU  - Clément, Nicolas
TI  - Noise suppression beyond the thermal limit with nanotransistor biosensors
JO  - Scientific reports
VL  - 10
IS  - 1
SN  - 2045-2322
CY  - [London]
PB  - Macmillan Publishers Limited, part of Springer Nature
M1  - FZJ-2020-02508
SP  - 12678
PY  - 2020
AB  - Transistor biosensors are mass-fabrication-compatible devices of interest for point of care diagnosis as well as molecular interaction studies. While the actual transistor gates in processors reach the sub-10 nm range for optimum integration and power consumption, studies on design rules for the signal-to-noise ratio (S/N) optimization in transistor-based biosensors have been so far restricted to 1 µm2 device gate area, a range where the discrete nature of the defects can be neglected. In this study, which combines experiments and theoretical analysis at both numerical and analytical levels, we extend such investigation to the nanometer range and highlight the effect of doping type as well as the noise suppression opportunities offered at this scale. In particular, we show that, when a single trap is active near the conductive channel, the noise can be suppressed even beyond the thermal limit by monitoring the trap occupancy probability in an approach analog to the stochastic resonance effect used in biological systems.
LB  - PUB:(DE-HGF)16
C6  - pmid:32728030
UR  - <Go to ISI:>//WOS:000556384600023
DO  - DOI:10.1038/s41598-020-69493-y
UR  - https://juser.fz-juelich.de/record/877916
ER  -