Associative learning is a critical learning principle uniting discrete ideas and percepts to improve individuals’adaptability.However,enabling high tunability of the association processes as in biological counterpart...Associative learning is a critical learning principle uniting discrete ideas and percepts to improve individuals’adaptability.However,enabling high tunability of the association processes as in biological counterparts and thus integration of multiple signals from the environment,ideally in a single device,is challenging.Here,we fabricate an organic ferroelectric neuromem capable of monadically implementing optically modulated associative learning.This approach couples the photogating effect at the interface with ferroelectric polarization switching,enabling highly tunable optical modulation of charge carriers.Our device acts as a smarter Pavlovian dog exhibiting adjustable associative learning with the training cycles tuned from thirteen to two.In particular,we obtain a large output difference(>10^(3)),which is very similar to the all-or-nothing biological sensory/motor neuron spiking with decrementless conduction.As proof-of-concept demonstrations,photoferroelectric coupling-based applications in cryptography and logic gates are achieved in a single device,indicating compatibility with biological and digital data processing.展开更多
Associative learning is a critical learning principle uniting discrete ideas and percepts to improve individuals’adaptability.However,enabling high tunability of the association processes as in biological counterpart...Associative learning is a critical learning principle uniting discrete ideas and percepts to improve individuals’adaptability.However,enabling high tunability of the association processes as in biological counterparts and thus integration of multiple signals from the environment,ideally in a single device,is challenging.Here,we fabricate an organic ferroelectric neuromem capable of monadically implementing optically modulated associative learning.This approach couples the photogating effect at the interface with ferroelectric polarization switching,enabling highly tunable optical modulation of charge carriers.Our device acts as a smarter Pavlovian dog exhibiting adjustable associative learning with the training cycles tuned from thirteen to two.In particular,we obtain a large output difference(>10^(3)),which is very similar to the all-or-nothing biological sensory/motor neuron spiking with decrementless conduction.As proof-of-concept demonstrations,photoferroelectric coupling-based applications in cryptography and logic gates are achieved in a single device,indicating compatibility with biological and digital data processing.展开更多
基金supported by the Natural Science Foundation of Jiangsu Province(grant number BK20211507)the National Key Research and Development Program of China(Grant No.2021YFA0715600)+1 种基金the National Natural Science Foundation of China(grant numbers 61774080,61861166001,51861145202,and 62174082)the start-up funds from Nanjing University。
文摘Associative learning is a critical learning principle uniting discrete ideas and percepts to improve individuals’adaptability.However,enabling high tunability of the association processes as in biological counterparts and thus integration of multiple signals from the environment,ideally in a single device,is challenging.Here,we fabricate an organic ferroelectric neuromem capable of monadically implementing optically modulated associative learning.This approach couples the photogating effect at the interface with ferroelectric polarization switching,enabling highly tunable optical modulation of charge carriers.Our device acts as a smarter Pavlovian dog exhibiting adjustable associative learning with the training cycles tuned from thirteen to two.In particular,we obtain a large output difference(>10^(3)),which is very similar to the all-or-nothing biological sensory/motor neuron spiking with decrementless conduction.As proof-of-concept demonstrations,photoferroelectric coupling-based applications in cryptography and logic gates are achieved in a single device,indicating compatibility with biological and digital data processing.
基金supported by the Natural Science Foundation of Jiangsu Province(grant number BK20211507)the National Key Research and Development Program of China(Grant No.2021YFA0715600)+1 种基金the National Natural Science Foundation of China(grant numbers 61774080,61861166001,51861145202,and 62174082)the start-up funds from Nanjing University.
文摘Associative learning is a critical learning principle uniting discrete ideas and percepts to improve individuals’adaptability.However,enabling high tunability of the association processes as in biological counterparts and thus integration of multiple signals from the environment,ideally in a single device,is challenging.Here,we fabricate an organic ferroelectric neuromem capable of monadically implementing optically modulated associative learning.This approach couples the photogating effect at the interface with ferroelectric polarization switching,enabling highly tunable optical modulation of charge carriers.Our device acts as a smarter Pavlovian dog exhibiting adjustable associative learning with the training cycles tuned from thirteen to two.In particular,we obtain a large output difference(>10^(3)),which is very similar to the all-or-nothing biological sensory/motor neuron spiking with decrementless conduction.As proof-of-concept demonstrations,photoferroelectric coupling-based applications in cryptography and logic gates are achieved in a single device,indicating compatibility with biological and digital data processing.
