Two Birds with One Stone: Impedance–Voltage Dual‐Mode Low Humidity Sensor Based on LiBr‐MOF‐801 with High Response
Dual-mode humidity sensors have received wide attention in recent years due to their great potential in multifunction applications. Herein, following a "two birds with one stone" strategy, a dual-mode and self-powered low humidity sensor based on LiBr-MOF-801 with high response and power generation is proposed. The optimized LiBr-MOF-801-based sensor exhibits impedance-voltage dual-mode sensitivity in the low humidity range of 0-23% relative humidity (RH) with high response (57.1 and 0.61 V), small hysteresis (0.3% RH) and good long-term stability at room temperature (20 °C). Moreover, an integrated humidity power generator is obtained by series connection of the self-powered humidity sensor within 15 cm<sup>2</sup>, and the output voltage reaches 2.6 V with an output power density of 110 nW cm<sup>-2</sup>, and can be used as energy, supplying power to commercial electronic equipment even in low humidity. This work provides a new sight for fabricating high-performance, dual-mode, and self-powered low-humidity sensors.
Authors
- Mingzhi Jiao (ORCID: https://orcid.org/0000-0002-3082-0523)
- Zhimin Yang (ORCID: https://orcid.org/0009-0009-7549-3456)
- Ke Wu (ORCID: https://orcid.org/0009-0005-2455-7828)
- Lulu Guo (ORCID: https://orcid.org/0000-0002-1309-6801)
- Wenjie Yang (ORCID: https://orcid.org/0000-0002-3959-5043)
Institutions
- Weifang Medical University (CN)
- China University of Mining and Technology (CN)
Publication Details
- Journal
- Small
- Published
- 2024-08-23
- DOI
- https://doi.org/10.1002/smll.202404160
- Citations
- 11
- Primary Topic
- Gas Sensing Nanomaterials and Sensors
- Type
- article
- Field-Weighted Citation Impact
- 2.30
Funders
- Fundamental Research Funds for the Central Universities