Two-Dimensional Metal-Organic Framework Film for Realizing Optoelectronic Synaptic Plasticity

Youxing Liu; Yanan Wei; Minghui Liu; Yichao Bai; Guocai Liu; Xinyu Wang; Shengcong Shang; Wenqiang Gao; Changsheng Du; Jianyi Chen; Yunqi Liu

doi:10.1002/anie.202106519

Two-Dimensional Metal-Organic Framework Film for Realizing Optoelectronic Synaptic Plasticity

Angew Chem Int Ed Engl. 2021 Aug 2;60(32):17440-17445. doi: 10.1002/anie.202106519. Epub 2021 Jun 30.

Authors

Youxing Liu^{1

2}, Yanan Wei^{2

3}, Minghui Liu^{1

2}, Yichao Bai^{1

2}, Guocai Liu^{1

2}, Xinyu Wang^{1

2}, Shengcong Shang^{1

2}, Wenqiang Gao^{1

2}, Changsheng Du¹, Jianyi Chen^{1

2}, Yunqi Liu^{1

2}

Affiliations

¹ Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
² University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
³ College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.

PMID: 34081388
DOI: 10.1002/anie.202106519

Abstract

2D metal-organic framework (MOF) film as the active layer show promising application prospects in various fields including sensors, catalysis, and electronic devices. However, exploring the application of 2D MOF film in the field of artificial synapses has not been implemented yet. In this work, we fabricated a novel 2D MOF film (Cu-THPP, THPP=5,10,15,20-Tetrakis(4-hydroxyphenyl)-21H,23H-porphine), and further used it as an active layer to explore the application in the simulation of human brain synapses. It shows excellent light-stimulated synaptic plasticity properties, and exhibits the foundation function of synapses such as long-term plasticity (LTP), short-term plasticity (STP), and the conversion of STP to LTP. Most critically, the MOF based artificial synaptic device exhibits an excellent stability in atmosphere. This work opens the door for the application of 2D MOF film in the simulation of human brain synapses.

Keywords: artificial synapse; metal-organic framework; photoexcitation; two-dimensional film.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Biomimetic Materials / chemistry*
Biomimetic Materials / radiation effects
Biomimetics / methods
Copper / chemistry
Copper / radiation effects
Light
Membranes, Artificial*
Metal-Organic Frameworks / chemistry*
Metal-Organic Frameworks / radiation effects
Neuronal Plasticity
Porphyrins / chemistry
Porphyrins / radiation effects
Synapses / chemistry

Substances

Membranes, Artificial
Metal-Organic Frameworks
Porphyrins
5,10,15,20-tetra(4-hydroxyphenyl)porphyrin
Copper