TY - JOUR
T1 - Boron nitride-mediated semiconductor nanonetwork for an ultralow-power fibrous synaptic transistor and C-reactive protein sensing
AU - Li, Mufang
AU - Shu, Qing
AU - Qing, Xing
AU - Wu, Jianmei
AU - Xiao, Qing
AU - Jia, Kangyu
AU - Wang, Xungai
AU - Wang, Dong
N1 - Publisher Copyright:
© 2023 The Royal Society of Chemistry.
PY - 2023/3/6
Y1 - 2023/3/6
N2 - A bioinspired organic electrochemical transistor (OECT) with synaptic and sensing functions has shown great potential in wearable neuromorphic electronics and brain-like sensory systems. Despite the extraordinary progress in simulating neuromorphic functions, it is still difficult to design a synaptic OECT with a bionic structure, long-term durability, low energy consumption and biomarker monitoring capability. Here, a fibrous OECT (FOECT) constructed from functional boron nitride (FBN)-mediated polypyrrole (PPy) neurofibers and an ion-gel dielectric is proposed for the first time. Benefiting from the porous and consecutive PPy nanonetwork, the synaptic FOECT shows a large on-off current ratio (1.46 × 104) and high transconductance (24.6 mS). Key synaptic features, such as excitatory/inhibitory postsynaptic current (EPSC/IPSC), paired-pulse facilitation/depression (PPF/PPD), short-term plasticity (STP) and cyclic endurance (4000 cycles) were successfully emulated. A low power consumption of 0.85 pj per spike was attained due to the short energy dissipation pathway of the nanostructured PPy channel. In addition, a high surface area and big transconductance guaranteed the FOECT a linear detection region (coefficient R2 = 0.966) towards 10 pg mL−1-0.2 mg mL−1 of C-reactive protein (CRP) with good reproducibility. Hence, this work details a promising strategy for next-generation smart textiles with energy-efficient neuromorphic computing and high-performance synaptic devices.
AB - A bioinspired organic electrochemical transistor (OECT) with synaptic and sensing functions has shown great potential in wearable neuromorphic electronics and brain-like sensory systems. Despite the extraordinary progress in simulating neuromorphic functions, it is still difficult to design a synaptic OECT with a bionic structure, long-term durability, low energy consumption and biomarker monitoring capability. Here, a fibrous OECT (FOECT) constructed from functional boron nitride (FBN)-mediated polypyrrole (PPy) neurofibers and an ion-gel dielectric is proposed for the first time. Benefiting from the porous and consecutive PPy nanonetwork, the synaptic FOECT shows a large on-off current ratio (1.46 × 104) and high transconductance (24.6 mS). Key synaptic features, such as excitatory/inhibitory postsynaptic current (EPSC/IPSC), paired-pulse facilitation/depression (PPF/PPD), short-term plasticity (STP) and cyclic endurance (4000 cycles) were successfully emulated. A low power consumption of 0.85 pj per spike was attained due to the short energy dissipation pathway of the nanostructured PPy channel. In addition, a high surface area and big transconductance guaranteed the FOECT a linear detection region (coefficient R2 = 0.966) towards 10 pg mL−1-0.2 mg mL−1 of C-reactive protein (CRP) with good reproducibility. Hence, this work details a promising strategy for next-generation smart textiles with energy-efficient neuromorphic computing and high-performance synaptic devices.
UR - http://www.scopus.com/inward/record.url?scp=85152102882&partnerID=8YFLogxK
U2 - 10.1039/d2tc05426d
DO - 10.1039/d2tc05426d
M3 - Journal article
AN - SCOPUS:85152102882
SN - 2050-7526
VL - 11
SP - 5208
EP - 5216
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
IS - 15
ER -