等离子体粒子集成到近红外光电探测器与光激活气体传感器:迈向可持续的下一代泛在传感
Plasmonic Particle Integration into Near-Infrared Photodetectors and Photoactivated Gas Sensors: Towards Sustainable Next-Generation Ubiquitous Sensing
AI总结:
针对泛在传感对器件高灵敏、低功耗、可小型化及电读出的需求,本文展望了等离子体纳米颗粒在近红外光电探测器、光激活气体传感器中的应用,提出结合计算方法的新策略,并分析了胶体制备的技术与环境效益。
摘要:
环境科学、医学、食品化学领域当前面临的挑战,以及人工智能在解决这些领域问题中的新兴应用,都需要分布式的本地传感。这类泛在传感要求组件具备以下特性:(1)高灵敏度;(2)能效优异;(3)可小型化;(4)能够直接与电子电路对接,即实现传感信号的电子读出。近年来,多种基于纳米颗粒的方法已进入该领域并展现出高性能。但挑战依然存在,例如目前许多用于近红外(NIR)探测的窄带隙半导体具有毒性,且现有商业化气体传感器存在能耗高、选择性低的问题。等离子体纳米结构凭借其独特的光-物质相互作用和基于油墨的制备方案,为解决这些挑战提供了潜在的技术方案,同时还能带来更优的环境性能。在本展望中,我们探讨了近期利用等离子体纳米颗粒制备NIR光电探测器以及光激活、低能耗气体传感器件的相关方法。此外,我们还指出了新的研究策略:借助计算方法开发可小型化光谱仪(利用等离子体纳米复合材料的宽光谱可调性),以及开发选择性气体传感器(利用动态光激活技术)。我们还从技术优势和环境影响的角度,探讨了胶体制备方法在器件制备中的益处,这两方面此前几乎未得到关注。
英文摘要:
Current challenges in environmental science, medicine, food chemistry as well as the emerging use of artificial intelligence for solving problems in these fields require distributed, local sensing. Such ubiquitous sensing requires components with (1) high sensitivity, (2) power efficiency, (3) miniaturizability and (4) the ability to directly interface with electronic circuitry, i.e., electronic readout of sensing signals. Over the recent years, several nanoparticle-based approaches have found their way into this field and have demonstrated high performance. However, challenges remain, such as the toxicity of many of today's narrow bandgap semiconductors for NIR detection and the high energy consumption as well as low selectivity of state-of-the-art commercialized gas sensors. With their unique light-matter interaction and ink-based fabrication schemes, plasmonic nanostructures provide potential technological solutions to these challenges, leading also to better environmental performance. In this perspective we discuss recent approaches of using plasmonic nanoparticles for the fabrication of NIR photodetectors and light-activated, energy-efficient gas sensing devices. In addition, we point out new strategies implying computational approaches for miniaturizable spectrometers, exploiting the wide spectral tunability of plasmonic nanocomposites, and for selective gas sensors, utilizing dynamic light activation. The benefits of colloidal approaches for device fabrication are discussed with regard to technological advantages and environmental aspects, which have been barely considered so far.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。