InP Quantum Dots Tailored Oxide Thin Film Phototransistor for Bioinspired Visual Adaptation

InP Quantum Dots Tailored Oxide Thin Film Phototransistor for Bioinspired Visual Adaptation

Advanced Functional Materials

10.1002/adfm.202305959

http://dx.doi.org/10.1002/adfm.202305959

Zhixiang Gao, Xin Ju, HAIZHONG ZHANG, Xiaohan Liu, Hongyu Chen, Wanfa Li, Hongliang Zhang, Lingyan Liang, Hongtao Cao

Biomaterials, Electrochemistry, Electronic, Optical and Magnetic Materials, Condensed Matter Physics

09 September 2023

Gao, Z., Ju, X., Zhang, H., Liu, X., Chen, H., Li, W., Zhang, H., Liang, L., & Cao, H. (2023). InP Quantum Dots Tailored Oxide Thin Film Phototransistor for Bioinspired Visual Adaptation. Advanced Functional Materials. Portico. https://doi.org/10.1002/adfm.202305959

AbstractThe exploration of bionic neuromorphic chips, capable of processing sensory data in a human‐like manner, is both a trend and a challenge. There is a strong demand for phototransistors that offer broadband in‐sensor adaptability. This study introduces a bioinspired vision sensor based on InP quantum dots (QDs)/InSnZnO hybrid phototransistors. This novel design combines the excellent electrical transportation features of oxide semiconductors with the superior optoelectronic response of InP QDs. The resulting hybrid devices exhibit exceptional gate controllability and a robust visible‐light response. These characteristics enable the emulation of multiple functions of the human visual system and the accommodation of varying light intensity environments. Furthermore, the phototransistor array successfully replicates the scotopic and photopic adaptation recognition behaviors of the human retina. Notably, the device demonstrates faultless competency in image processing, achieving an impressive 93% accuracy for digit recognition. These findings contribute to the advancement of bionic neuromorphic chips and offer promising opportunities for future developments in the bioinspired visual system.

Publisher Copyright

The authors acknowledged funding support from the Ningbo Key Scientific and Technological Project (2021Z116); the National Natural Science Foundation of China (62274166); the Natural Science Foundation of Zhejiang Province (LD21F040002); the Science and Technology Major Project of Fujian Province, China (2022HZ027006) and the Quanzhou Municipal Science and Technology Major Project, China (2022GZ7)

This is the peer reviewed version of the following article: Gao, Z., Ju, X., Zhang, H., Liu, X., Chen, H., Li, W., Zhang, H., Liang, L., & Cao, H. (2023). InP Quantum Dots Tailored Oxide Thin Film Phototransistor for Bioinspired Visual Adaptation. Advanced Functional Materials. Portico. https://doi.org/10.1002/adfm.202305959], which has been published in final form at doi.org/10.1002/adfm.202305959. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.

https://oar.a-star.edu.sg/communities-collections/articles/19326

1616-301X
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Institute of Materials Research and Engineering