A robust organic hydrogen sensor for distributed monitoring applications

IF 33.7 1区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

Nature Electronics Pub Date : 2025-03-06 DOI:10.1038/s41928-025-01352-y

Suman Mandal, Adam V. Marsh, Hendrik Faber, Tanmay Ghoshal, Dipak Kumar Goswami, Leonidas Tsetseris, Martin Heeney, Thomas D. Anthopoulos

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Abstract

Hydrogen is an abundant and clean energy source that could help to decarbonize difficult-to-electrify economic sectors. However, its safe deployment relies on the availability of cost-effective hydrogen detection technologies. We describe a hydrogen sensor that uses an organic semiconductor as the active layer. It can operate over a wide temperature and humidity range. Ambient oxygen p-dopes the organic semiconductor, which improves hole transport, and the presence of hydrogen reverses this doping process, leading to a drop in current and enabling reliable and rapid hydrogen detection. The sensor exhibits a high responsivity (more than 10,000), fast response time (less than 1 s), low limit of detection (around 192 ppb) and low power consumption (less than 2 μW). It can operate continuously for more than 646 days in ambient air at room temperature. We show that the sensor outperforms a commercial hydrogen detector in realistic sensing scenarios, illustrating its suitability for application in distributed sensor networks for early warning of hydrogen leaks and preventing explosions or fires.

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一个强大的有机氢传感器分布式监测应用

氢是一种丰富的清洁能源，可以帮助难以电气化的经济部门脱碳。然而，其安全部署依赖于具有成本效益的氢探测技术的可用性。我们描述了一种使用有机半导体作为有源层的氢传感器。它可以在很宽的温度和湿度范围内工作。环境氧掺杂有机半导体，从而改善空穴输运，而氢的存在逆转了这一掺杂过程，导致电流下降，从而实现可靠和快速的氢检测。该传感器具有高响应率（超过10,000）、快速响应时间（小于1 s）、低检测限（约192 ppb）和低功耗（小于2 μW）的特点。可在室温环境空气中连续工作646天以上。我们表明，该传感器在现实传感场景中优于商用氢气探测器，说明其适用于分布式传感器网络，用于氢气泄漏预警和防止爆炸或火灾。

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来源期刊

Nature Electronics Engineering-Electrical and Electronic Engineering

CiteScore

47.50

自引率

2.30%

发文量

159

期刊介绍： Nature Electronics is a comprehensive journal that publishes both fundamental and applied research in the field of electronics. It encompasses a wide range of topics, including the study of new phenomena and devices, the design and construction of electronic circuits, and the practical applications of electronics. In addition, the journal explores the commercial and industrial aspects of electronics research. The primary focus of Nature Electronics is on the development of technology and its potential impact on society. The journal incorporates the contributions of scientists, engineers, and industry professionals, offering a platform for their research findings. Moreover, Nature Electronics provides insightful commentary, thorough reviews, and analysis of the key issues that shape the field, as well as the technologies that are reshaping society. Like all journals within the prestigious Nature brand, Nature Electronics upholds the highest standards of quality. It maintains a dedicated team of professional editors and follows a fair and rigorous peer-review process. The journal also ensures impeccable copy-editing and production, enabling swift publication. Additionally, Nature Electronics prides itself on its editorial independence, ensuring unbiased and impartial reporting. In summary, Nature Electronics is a leading journal that publishes cutting-edge research in electronics. With its multidisciplinary approach and commitment to excellence, the journal serves as a valuable resource for scientists, engineers, and industry professionals seeking to stay at the forefront of advancements in the field.