Tailoring the nanoscale morphology of HKUST-1 thin films via codeposition and seeded growth
Integration of surface-anchored metal-organic frameworks (surMOFs) within hierarchical architectures is necessary for potential sensing, electronic, optical, or separation applications. It is important to understand the fundamentals of film formation for these surMOFs in order to develop strategies...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Beilstein-Institut
2017-11-01
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| Series: | Beilstein Journal of Nanotechnology |
| Subjects: | |
| Online Access: | https://doi.org/10.3762/bjnano.8.230 |
| _version_ | 1811203789864042496 |
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| author | Landon J. Brower Lauren K. Gentry Amanda L. Napier Mary E. Anderson |
| author_facet | Landon J. Brower Lauren K. Gentry Amanda L. Napier Mary E. Anderson |
| author_sort | Landon J. Brower |
| collection | DOAJ |
| description | Integration of surface-anchored metal-organic frameworks (surMOFs) within hierarchical architectures is necessary for potential sensing, electronic, optical, or separation applications. It is important to understand the fundamentals of film formation for these surMOFs in order to develop strategies for their incorporation with nanoscale control over lateral and vertical dimensions. This research identified processing parameters to control the film morphology for surMOFs of HKUST-1 fabricated by codeposition and seeded deposition. Time and temperature were investigated to observe film formation, to control film thickness, and to tune morphology. Film thickness was investigated by ellipsometry, while film structure and film roughness were characterized by atomic force microscopy. Films formed via codeposition resulted in nanocrystallites anchored to the gold substrate. A dynamic process at the interface was observed with a low density of large particulates (above 100 nm) initially forming on the substrate; and over time these particulates were slowly replaced by the prevalence of smaller crystallites (ca. 10 nm) covering the substrate at a high density. Elevated temperature was found to expedite the growth process to obtain the full range of surface morphologies with reasonable processing times. Seed crystals formed by the codeposition method were stable and nucleated growth throughout a subsequent layer-by-layer deposition process. These seed crystals templated the final film structure and tailor the features in lateral and vertical directions. Using codeposition and seeded growth, different surface morphologies with controllable nanoscale dimensions can be designed and fabricated for integration of MOF systems directly into device architectures and sensor platforms. |
| first_indexed | 2024-04-12T03:02:13Z |
| format | Article |
| id | doaj.art-cdd9559d1e1d4c9f8c4323ecde69988d |
| institution | Directory Open Access Journal |
| issn | 2190-4286 |
| language | English |
| last_indexed | 2024-04-12T03:02:13Z |
| publishDate | 2017-11-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Nanotechnology |
| spelling | doaj.art-cdd9559d1e1d4c9f8c4323ecde69988d2022-12-22T03:50:38ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862017-11-01812307231410.3762/bjnano.8.2302190-4286-8-230Tailoring the nanoscale morphology of HKUST-1 thin films via codeposition and seeded growthLandon J. Brower0Lauren K. Gentry1Amanda L. Napier2Mary E. Anderson3Hope College, Department of Chemistry, Holland, MI 49422, United StatesHope College, Department of Chemistry, Holland, MI 49422, United StatesHope College, Department of Chemistry, Holland, MI 49422, United StatesHope College, Department of Chemistry, Holland, MI 49422, United StatesIntegration of surface-anchored metal-organic frameworks (surMOFs) within hierarchical architectures is necessary for potential sensing, electronic, optical, or separation applications. It is important to understand the fundamentals of film formation for these surMOFs in order to develop strategies for their incorporation with nanoscale control over lateral and vertical dimensions. This research identified processing parameters to control the film morphology for surMOFs of HKUST-1 fabricated by codeposition and seeded deposition. Time and temperature were investigated to observe film formation, to control film thickness, and to tune morphology. Film thickness was investigated by ellipsometry, while film structure and film roughness were characterized by atomic force microscopy. Films formed via codeposition resulted in nanocrystallites anchored to the gold substrate. A dynamic process at the interface was observed with a low density of large particulates (above 100 nm) initially forming on the substrate; and over time these particulates were slowly replaced by the prevalence of smaller crystallites (ca. 10 nm) covering the substrate at a high density. Elevated temperature was found to expedite the growth process to obtain the full range of surface morphologies with reasonable processing times. Seed crystals formed by the codeposition method were stable and nucleated growth throughout a subsequent layer-by-layer deposition process. These seed crystals templated the final film structure and tailor the features in lateral and vertical directions. Using codeposition and seeded growth, different surface morphologies with controllable nanoscale dimensions can be designed and fabricated for integration of MOF systems directly into device architectures and sensor platforms.https://doi.org/10.3762/bjnano.8.230atomic force microscopycopper(II) 1,3,5-benzenetricarboxylateellipsometrysurface-anchored metal-organic frameworks |
| spellingShingle | Landon J. Brower Lauren K. Gentry Amanda L. Napier Mary E. Anderson Tailoring the nanoscale morphology of HKUST-1 thin films via codeposition and seeded growth Beilstein Journal of Nanotechnology atomic force microscopy copper(II) 1,3,5-benzenetricarboxylate ellipsometry surface-anchored metal-organic frameworks |
| title | Tailoring the nanoscale morphology of HKUST-1 thin films via codeposition and seeded growth |
| title_full | Tailoring the nanoscale morphology of HKUST-1 thin films via codeposition and seeded growth |
| title_fullStr | Tailoring the nanoscale morphology of HKUST-1 thin films via codeposition and seeded growth |
| title_full_unstemmed | Tailoring the nanoscale morphology of HKUST-1 thin films via codeposition and seeded growth |
| title_short | Tailoring the nanoscale morphology of HKUST-1 thin films via codeposition and seeded growth |
| title_sort | tailoring the nanoscale morphology of hkust 1 thin films via codeposition and seeded growth |
| topic | atomic force microscopy copper(II) 1,3,5-benzenetricarboxylate ellipsometry surface-anchored metal-organic frameworks |
| url | https://doi.org/10.3762/bjnano.8.230 |
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