Organic optoelectrical synaptic transistors for color information processing

Author:

Liu Wanrong123,Chen Wenzhong123ORCID,Jin Chenxing123,Xu Yunchao123ORCID,Shi Xiaofang123,He Biao12,Peng Yongyi12ORCID,Yang Junliang12ORCID,Sun Jia123ORCID

Affiliation:

1. Hunan Key Laboratory for Super Microstructure and Ultrafast Process, School of Physics, Central South University 1 , Changsha, Hunan 410083, People's Republic of China

2. State Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University 2 , Changsha, Hunan 410083, People's Republic of China

3. Hunan Key Laboratory of Nanophotonics and Devices, School of Physics, Central South University 3 , 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China

Abstract

The light-induced synaptic transistors, with their large-scale and cost-effective benefits, hold significant promise for advancing neuromorphic electronics. In this work, we propose a hybrid phototransistor with a channel layer composed of C8-BTBT and PM6. This device exhibits an extended optical response range in comparison to pure C8-BTBT transistors. In addition, the device shows excellent synaptic plasticity under red, green, and blue light stimuli, with the potential for tuning through light dosage and pulse duration. The study further confirms consistent device performance and reliable operation. Moreover, we show that this type of device can be fabricated into array to write the letters “C”, “S”, and “U” and store red, green, and blue information. These experimental results show the excellent responsiveness and storage performance of our devices under red, green, and blue light stimuli, suggesting promising applications in artificial vision.

Funder

National Natural Science Foundation of China

Huxiang Youth Talent Support Program

Science and Technology Innovation Program of Hunan Province

Project of State Key Laboratory of Precision Manufacturing for Extreme Service Performance at Central South University

Nationale Key Research and Development Program of China

Fundamental Research Funda for the Central Universities of Central South University

Publisher

AIP Publishing

Subject

Physics and Astronomy (miscellaneous)

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