Single‐Crystal Capacitive Sensors with Micropatterned Electrodes via Space‐Confined Growth of the Metal–Organic Framework HKUST‐1

Xia, Benzheng; Matavž, Aleksander; Tu, Min; Rubio‐Giménez, Víctor; Tietze, Max L.; Marreiros, João; Ceyssens, Frederik; Cresens, Charlotte; Wauteraerts, Nathalie; Kubarev, A. V.; Kraft, Michaël; Ameloot, Rob

doi:10.1002/adfm.202204065

Cited by 5 publications

(3 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While single-crystal materials have shown significant performance advantages in other applications 7 – 9 , single-crystal plasmonics has remained a challenge. Conventional deposition of plasmonic metals such as gold is typically carried out through physical vapor deposition (PVD) techniques and generally forms polycrystalline metal films and nanostructures.…”

Section: Introductionmentioning

confidence: 99%

High performance, single crystal gold bowtie nanoantennas fabricated via epitaxial electroless deposition

V. Grayli,

Kamal,

Leach

2023

Sci Rep

View full text Add to dashboard Cite

Material quality plays a critical role in the performance of nanometer-scale plasmonic structures and represents a significant hurdle to large-scale device integration. Progress has been hindered by the challenges of realizing scalable, high quality, ultrasmooth metal deposition strategies, and by the poor pattern transfer and device fabrication yields characteristic of most metal deposition approaches which yield polycrystalline metal structure. Here we highlight a novel and scalable electrochemical method to deposit ultrasmooth, single-crystal (100) gold and to fabricate a series of bowtie nanoantennas through subtractive nanopatterning. We investigate some of the less well-explored design and performance characteristics of these single-crystal nanoantennas in relation to their polycrystalline counterparts, including pattern transfer and device yield, polarization response, gap-field magnitude, and the ability to model accurately the antenna local field response. Our results underscore the performance advantages of single-crystal nanoscale plasmonic materials and provide insight into their use for large-scale manufacturing of plasmon-based devices. We anticipate that this approach will be broadly useful in applications where local near-fields can enhance light–matter interactions, including for the fabrication of optical sensors, photocatalytic structures, hot carrier-based devices, and nanostructured noble metal architectures targeting nano-attophysics.

show abstract

Section: Introductionmentioning

confidence: 99%

High performance, single crystal gold bowtie nanoantennas fabricated via epitaxial electroless deposition

V. Grayli,

Kamal,

Leach

2023

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Metal–organic frameworks (MOFs) are coordination polymer compounds with a periodic and nanoporous structure, formed from the coordination of organic ligands to metal ions or clusters. The numerous functional organic ligands and metal ions, as well as the large specific surface area of MOFs, facilitate the chemical and physical modifications that allow these functional nanoporous materials to be tailored toward diverse applications, including catalysis, sensors, and gas storage [ 8 , 9 , 10 , 11 , 12 , 13 , 14 ]. Moreover, the particle sizes, shapes, and compositions of MOFs can be readily modified by controlling the crystal growth mechanism during MOF synthesis.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Yttria-Stabilized Zirconia Nanospheres from Zirconium-Based Metal–Organic Frameworks and the Dielectric Properties

et al. 2022

View full text Add to dashboard Cite

Yttria-stabilized zirconia (YSZ) nanospheres were synthesized by calcination at 900 °C after the adsorption of Y3+ ions into the pores of a zirconium-based metal–organic framework (MOF). The synthesized 3YSZ (zirconia doped with 3 mol% Y2O3), 8YSZ (8 mol% Y2O3), and 30YSZ (30 mol% Y2O3) nanospheres were found to exhibit uniform sizes and shapes. Complex permittivity and complex permeability were carried out in K-band (i.e., 18–26.5 GHz) to determine their suitability for use as low-k materials in 5G communications. The real and imaginary parts of the permittivity of the sintered 3YSZ were determined to be 21.24 and 0.12, respectively, while those of 8YSZ were 22.80 and 0.16, and those of 30YSZ were 7.16 and 0.38. Control of the real part of the permittivity in the sintered YSZ was facilitated by modifying the Y2O3 content, thereby rendering this material an electronic ceramic with potential for use in high-frequency 5G communications due to its excellent mechanical properties, high chemical resistance, and good thermal stability. In particular, it could be employed as an exterior material for electronic communication products requiring the minimization of information loss.

show abstract

“…[142] In-situ growth of COFs on a surface could link COFs covalently to the surface to overcome this stability problem, an approach that has been explored for MOFs on e.g., copper electrodes [246] and very recently on capacitive sensors with micropatterned gold electrodes. [247] COFs can be anchored by using a primer layer on the surface. In the case of gold surfaces, we considered thiol amines as attractive candidates to form such a layer.…”

Section: Cofs As Sensorsmentioning

confidence: 99%

Structure-property relations of imine-linked covalent organic frameworks

Dautzenberg¹

View full text Add to dashboard Cite

Covalent organic frameworks (COFs) are thermally and chemically stable, nanoporous materials with high surface areas, making them interesting for a large variety of applications including energy storage, gas separation, catalysis and chemical sensing. However, pore blocking and pore collapse may limit their performance. Reducing the capillary forces by using solvents with low surface tension, like supercritical CO 2 , for activation, and the introduction of bulky isopropyl/methoxy groups were found to reduce pore collapse. Herein, we present an easy-to-use alternative that involves the combination of a new, methylated building block (2,4,6-trimethylbenzene-1,3,5-tricarbaldehyde, Me 3 TFB) with vacuum drying. Condensation of Me 3 TFB with 1,4-phenylenediamine (PA) or benzidine (BD) resulted in imine-linked 2D COFs (Me 3 TFB-PA and Me 3 TFB-BD) with higher degrees of crystallinity and higher BET surface areas compared to their non-methylated counterparts (TFB-PA and TFB-BD). This was rationalised by density functional theory computations. Additionally, the methylated COFs are less prone to pore collapse when subjected to vacuum drying and their BET surface area was found to remain stable within at least four weeks. Within the context of their applicability as sensors, we also studied the influence of hydrochloric acid vapour on the optical and structural properties of all COFs.Upon acid exposure their colour and absorbance spectra changed, making them indeed suitable for acid detection. Infrared spectroscopy revealed that the colour change is likely attributed to the cleavage of imine bonds, which are only partially restored after ammonia exposure. While this limits their application as reusable sensors, our work presents a facile method to increase the robustness of commonly known COFs.

show abstract

Single‐Crystal Capacitive Sensors with Micropatterned Electrodes via Space‐Confined Growth of the Metal–Organic Framework HKUST‐1

Cited by 5 publications

References 49 publications

High performance, single crystal gold bowtie nanoantennas fabricated via epitaxial electroless deposition

High performance, single crystal gold bowtie nanoantennas fabricated via epitaxial electroless deposition

Synthesis of Yttria-Stabilized Zirconia Nanospheres from Zirconium-Based Metal–Organic Frameworks and the Dielectric Properties

Structure-property relations of imine-linked covalent organic frameworks

Contact Info

Product

Resources

About