TY - JOUR
T1 - In-Plane Oriented Two-Dimensional Conjugated Metal-Organic Framework Films for High-Performance Humidity Sensing
AU - Park, Sangwook
AU - Zhang, Zhe
AU - Qi, Haoyuan
AU - Liang, Baokun
AU - Mahmood, Javeed
AU - Noh, Hyuk Jun
AU - Hambsch, Mike
AU - Wang, Mingchao
AU - Wang, Mao
AU - Ly, Khoa Hoang
AU - Wang, Zhiyong
AU - Weidinger, Inez M.
AU - Zhou, Shengqiang
AU - Baek, Jong Beom
AU - Kaiser, Ute
AU - Mannsfeld, Stefan C.B.
AU - Feng, Xinliang
AU - Dong, Renhao
N1 - Generated from Scopus record by KAUST IRTS on 2023-09-23
PY - 2022/6/6
Y1 - 2022/6/6
N2 - 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 nm2and 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).
AB - 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 nm2and 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).
UR - https://pubs.acs.org/doi/10.1021/acsmaterialslett.2c00160
UR - http://www.scopus.com/inward/record.url?scp=85131118639&partnerID=8YFLogxK
U2 - 10.1021/acsmaterialslett.2c00160
DO - 10.1021/acsmaterialslett.2c00160
M3 - Article
SN - 2639-4979
VL - 4
SP - 1146
EP - 1153
JO - ACS Materials Letters
JF - ACS Materials Letters
IS - 6
ER -