Bioinspired Multifunctional Organic Transistors Based on Natural Chlorophyll/Organic Semiconductors.
Adv Mater
; 32(28): e2001227, 2020 Jul.
Article
in En
| MEDLINE
| ID: mdl-32500583
ABSTRACT
Inspired by the photosynthesis process of natural plants, multifunctional transistors based on natural biomaterial chlorophyll and organic semiconductors (OSCs) are reported. Functions as photodetectors (PDs) and light-stimulated synaptic transistors (LSSTs) can be switched by gate voltage. As PDs, the devices exhibit ultrahigh photoresponsivity up to 2 × 106 A W-1 , detectivity of 6 × 1015 Jones, and Iphoto /Idark ratio of 2.7 × 106 , which make them among the best reported organic PDs. As LSSTs, important synaptic functions similar to biological synapses are demonstrated, together with a dynamic learning and forgetting process and image-processing function. Significantly, benefiting from the ultrahigh photosensitivity of chlorophyll, the lowest operating voltage and energy consumption of the LSSTs can be 10-5 V and 0.25 fJ, respectively. The devices also exhibit high flexibility and long-term air stability. This work provides a new guide for developing organic electronics based on natural biomaterials.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Transistors, Electronic
/
Chlorophyll
/
Biomimetics
Language:
En
Journal:
Adv Mater
Journal subject:
BIOFISICA
/
QUIMICA
Year:
2020
Document type:
Article