Robust Organic–Inorganic Heterosynapses with High PPF and Broad Photoperception,Advanced Materials Technologies

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Robust Organic–Inorganic Heterosynapses with High PPF and Broad Photoperception
Advanced Materials Technologies ( IF 6.4 ) Pub Date : 2022-10-17 , DOI: 10.1002/admt.202200870
Chaoyi Ban ₁ , Zicheng Zhang ₁ , Cheng Song ₁ , Heshan Zhang ₁ , Xu Luo ₁ , Xiaojing Wang ₁ , Juqing Liu ₁ , Zhengdong Liu ₁ , Wei Huang _{1,

2}

Affiliation

Hybrid heterostructures are promising neurotransmitter platforms for photonic synapses in bioinspired optoelectronics. Organic–inorganic heterostructures have the features of a wide photoresponse and wet synthesis but still face poor stability and limited comprehensive performance. Here, it has been reported ultrastable and broadband photonic synaptic behaviors from solution-processed cross-linked conjugated polymer/zinc oxide nanorod heterostructures, which can be formed by in situ polymerization and hydrothermal methods. Light-tunable synaptic function enables neuromorphic behaviors, such as high paired-pulse facilitation, short- and long-term plasticity, over the UV-to-visible spectral range. Impressively, the heterosynapse can maintain clear synaptic plasticity after being annealed in ambient air at 300 °C, showing robust thermal stability in harsh conditions. Moreover, visual perception and recognition can be mimicked with our synapse arrays, providing a reliable pathway to construct stable neurotransmitters toward practical neuromorphic optoelectronics.

中文翻译：

具有高 PPF 和广泛光感知的稳健有机-无机异质突触

混合异质结构是用于仿生光电子学中光子突触的有前途的神经递质平台。有机-无机异质结构具有广泛的光响应和湿法合成等特点，但仍面临稳定性差和综合性能有限的问题。在这里，已经报道了溶液处理的交联共轭聚合物/氧化锌纳米棒异质结构的超稳定和宽带光子突触行为，它可以通过原位聚合和水热法形成。光可调突触功能可在紫外到可见光谱范围内实现神经形态行为，例如高成对脉冲促进、短期和长期可塑性。令人印象深刻的是，异质突触在 300 °C 的环境空气中退火后可以保持清晰的突触可塑性，在恶劣条件下显示出强大的热稳定性。此外，我们的突触阵列可以模拟视觉感知和识别，为构建稳定的神经递质提供了可靠的途径，以实现实用的神经形态光电子学。

更新日期：2022-10-17

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