van der Waals Photonic Bipolar Junction Transistors Capable of Simultaneously Discerning Wavelength Bands and Dual-Function Chip Application,ACS Nano

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van der Waals Photonic Bipolar Junction Transistors Capable of Simultaneously Discerning Wavelength Bands and Dual-Function Chip Application
ACS Nano ( IF 15.8 ) Pub Date : 2025-01-12 , DOI: 10.1021/acsnano.4c14065
Zhengrui Zhu ₁ , Liwei Liu ₁ , Shaozhi Deng _{2,

3} , Ningsheng Xu _{1,

2}

Affiliation

The exponential growth of the Internet of Things (IoTs) has led to the widespread deployment of millions of sensors, crucial for the sensing layer’s perception capabilities. In particular, there is a strong interest in intelligent photonic sensing. However, the current photonic sensing device and chip typically offer limited functionality, and the devices providing their power take up excessive amounts of space. There is a pressing need for smart, multifunctional sensing chips with the capability of intelligent recognition. Here, we propose and demonstrate the functionalities of a two-dimensional van der Waals photonic bipolar junction transistor (2D-vdW photonic BJT) in simultaneous sensing and discerning different wavelength bands of light. Also, a dual-function chip application is given. The optoelectronic detection characteristics in the vision-near-infrared (vis-NIR) band and photovoltaic characteristics are systematically studied. It exhibits negative photoconductivity (NPC) for the 1064 nm laser while maintaining positive photoconductivity (PPC) for the 638 and 1550 nm lasers. Also, the electrical tunable response is realized. Moreover, the function of this chip under real-application conditions has shown its efficacy in applications such as detecting dim light with ∼10 lx illuminance, identifying wavelength bands, and generating power photovoltaically. This work provides a solution for the interconnection of everything.

中文翻译：

van der Waals 光子双极结型晶体管能够同时识别波段和双功能芯片应用

物联网（IoT）的指数级增长导致数百万个传感器的广泛部署，这对传感层的感知能力至关重要。特别是，人们对智能光子传感有着浓厚的兴趣。然而，目前的光子传感器件和芯片通常提供的功能有限，并且提供电源的器件占用过多的空间。迫切需要具有智能识别能力的智能、多功能传感芯片。在这里，我们提出并演示了二维范德华光子双极结型晶体管（2D-vdW photonic BJT）在同时感应和识别不同波长波段光方面的功能。此外，还给出了双功能芯片应用程序。系统研究了视觉近红外（vis-NIR）波段的光电探测特性和光伏特性。它在 1064 nm 激光器中表现出负光电导（NPC），同时在 638 和 1550 nm 激光器中保持正光电导（PPC）。此外，还实现了电可调响应。此外，该芯片在实际应用条件下的功能已在 ∼10 lx 照度检测昏暗光、识别波段和光伏发电等应用中显示出其功效。这项工作为万物互联提供了解决方案。

更新日期：2025-01-12

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