DataVXAdvanced Functional MaterialsPaper
journal article·2025-04Open access

Covalent Organic Framework‐Enhanced Metal Halide Perovskites for Selective and Sensitive Gas Sensing

Wen Ye, Meng Li, Guixiang Li, Lihua Jiang, Shun Tian, Shihong Dong, Qingfeng Xu, Dongyun Chen, Mohammad Khaja Nazeeruddin, Paul J. Dyson, Antonio Abate, Jian‐Mei Lu

Advanced Functional Materials· Volume 35· Issue 14
Publisher pageOpen full text
Source abstract

Abstract

Abstract Solution‐processed lead‐free halide perovskite gas sensors possess low gas detection limits, offering promising alternatives to traditional metal oxide chemiresistors. However, halide perovskite chemiresistors often suffer from poor selectivity and durability due to a lack of coordinatively unsaturated surface metal ions and their sensitivity to humidity. To address these issues, a general strategy is presented in which the Cs2PdBr6 perovskite surface is coated with covalent organic framework (COF) to provide hybrid sensor materials that are highly sensitive to specific gases and demonstrate excellent stability under real‐working conditions. The hybrid chemiresistors demonstrate high sensitivity and controllable selectivity toward NO2 or NH3 gases. Specifically, TAPB–PDA@Cs2PdBr6 achieves a detection limit of 10 ppb for NO2, the lowest value reported for a perovskite‐based gas sensor, maintaining its performance after continuous exposure to ambient air for several weeks. In contrast, COF‐5@Cs2PdBr6 shows high selectivity to NH3 and has a detection limit of 40 ppb. Structural and spectroscopic characterization combined with mechanistic studies provide molecular‐level insights into the outstanding properties of these new hybrid sensor materials, which set a new benchmark in the field, i.e., surpassing the selectivity and sensitivity of conventional halide perovskite sensors.
Source: crossref · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Gas Sensing Nanomaterials and Sensors · Covalent Organic Framework Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Chemistry Chemical Engineering and Materials Science Collaborative Innovation Center of Suzhou Nano Science and Technology National United Engineering Laboratory of Functionalized Environmental Adsorption Materials Soochow University Suzhou 215123 China

Key Laboratory of Intelligent Optoelectronic Devices and Chips of Jiangsu Higher Education Institutions School of Physical Science and Technology Suzhou University of Science and Technology Suzhou 215009 China

Key Lab for Special Functional Materials of Ministry of Education, School of Nanoscience and Materials Engineering Henan University Kaifeng 475004 China

Helmholtz‐Zentrum Berlin für Materialien und Energie GmbH 14109 Berlin Germany

Institute of Chem. Sciences and Engineering École Polytechnique Fédérale de Lausanne (EPFL) Lausanne CH‐1015 Switzerland

Suzhou Shijing Technology Co., Ltd 58 Jinrui Road Suzhou 215137 China

Mechanical and Energy Engineering Department College of Engineering Imam Abdulrahman Bin Faisal University Dammam 34212 Saudi Arabia

Department of Chemistry Bielefeld University, Universitätsstraße 25 33615 Bielefeld Germany

Department of Chemical Materials and Production Engineering University of Naples Federico II. Naples Piazzale Vincenzo Tecchio 80 Naples 80125 Italy

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China

References (32)

Show source-provided references
1. 10.1021/cr400659h10.1021/cr400659h ↗
2. 10.1038/nature0177710.1038/nature01777 ↗
3. 10.1038/nrmicro82310.1038/nrmicro823 ↗
4. 10.1038/3510453510.1038/35104535 ↗
5. 10.1016/j.mseb.2017.12.03610.1016/j.mseb.2017.12.036 ↗
6. 10.1038/s41928-020-0402-310.1038/s41928-020-0402-3 ↗
7. 10.1002/adma.20200500010.1002/adma.202005000 ↗
8. 10.1021/acs.chemrev.8b0053910.1021/acs.chemrev.8b00539 ↗
9. 10.1038/s41578-019-0080-910.1038/s41578-019-0080-9 ↗
10. 10.1038/s41467-022-30016-010.1038/s41467-022-30016-0 ↗
11. 10.1038/s41566-020-00727-110.1038/s41566-020-00727-1 ↗
12. 10.1038/s41566-022-00978-010.1038/s41566-022-00978-0 ↗
13. 10.1126/science.aaa272510.1126/science.aaa2725 ↗
14. 10.1038/s41893-020-0586-610.1038/s41893-020-0586-6 ↗
15. 10.1038/s41467-019-13910-y10.1038/s41467-019-13910-y ↗
16. 10.1002/adma.20180379210.1002/adma.201803792 ↗
17. 10.1109/JSEN.2021.307174410.1109/JSEN.2021.3071744 ↗
18. 10.1021/acsaelm.4c0023010.1021/acsaelm.4c00230 ↗
19. 10.1016/j.snb.2022.13139710.1016/j.snb.2022.131397 ↗
20. 10.1021/jacs.6b1325810.1021/jacs.6b13258 ↗
21. 10.1002/adma.20210067410.1002/adma.202100674 ↗
22. 10.1103/PhysRev.136.B86410.1103/PhysRev.136.B864 ↗
23. 10.1103/PhysRevLett.77.386510.1103/PhysRevLett.77.3865 ↗
24. 10.1063/1.156406010.1063/1.1564060 ↗
25. 10.1039/C9SC00289H10.1039/C9SC00289H ↗
26. 10.1126/science.aay969810.1126/science.aay9698 ↗
27. 10.1038/s41467-023-37296-010.1038/s41467-023-37296-0 ↗
28. 10.1016/j.snb.2017.09.19510.1016/j.snb.2017.09.195 ↗
29. 10.1109/TIE.2011.217309410.1109/TIE.2011.2173094 ↗
30. 10.1021/ac200015c10.1021/ac200015c ↗
31. 10.1038/nchem.54810.1038/nchem.548 ↗
32. 10.1021/acscentsci.6b0033110.1021/acscentsci.6b00331 ↗