In-Plane Oriented Two-Dimensional Conjugated Metal–Organic Framework Films for High-Performance Humidity Sensing
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
Two-dimensional conjugated metal-organic frameworks (2D c-MOFs) have emerged as a new generation of conducting MOFs for electronics. However, controlled synthesis of thin-film samples with high crystallinity and defined layer orientation, which is beneficial for achieving high-performance devices and reliable structure-property relationship, has remained a challenge. Here, we develop a surfactant-directed two-step synthesis of layered 2D c-MOF films based on benzene and triphenylene ligands linked by copper-bis(diimino) complexes (HIB-Cu and HITP-Cu, respectively). The achieved layered 2D c-MOF films are featured as free-standing, in-plane oriented, and polycrystalline films with domain size up to 8000 nm2 and a tunable thickness in the range of 8-340 nm. Benefiting from the intrinsic electrical conductivity and quasi-one-dimensional pore channels, a HIB-Cu film based chemiresistive sensor is constructed, displaying effective humidity sensing with a response as fast as 21 s, superior to the reported MOF-powder-based chemiresistive sensors (in the orders of minutes).
Details
Original language | English |
---|---|
Pages (from-to) | 1146-1153 |
Number of pages | 8 |
Journal | ACS materials letters |
Volume | 4 |
Issue number | 6 |
Publication status | Published - 16 May 2022 |
Peer-reviewed | Yes |
External IDs
Mendeley | b7d5425b-b6fa-39fb-a61d-8f94dd3f70e8 |
---|---|
Scopus | 85131118639 |