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Polyoxoniobates as molecular building blocks in thin films

Rambaran, Mark A. LU ; Gorzsás, András ; Holmboe, Michael and Ohlin, C. André (2021) In Dalton Transactions 50(44). p.16030-16038
Abstract

Niobium oxide thin films have been prepared by spin-coating aqueous solutions of tetramethylammonium salts of the isostructural polyoxometalate clusters [Nb10O28]6-, [TiNb9O28]7- and [Ti2Nb8O28]8- onto silicon wafers, and annealing them. The [Nb10O28]6- cluster yields films of Nb2O5 in the orthorhombic and monoclinic crystal phases when annealed at 800 °C and 1000 °C, respectively, whereas the [TiNb9O28]7- and [Ti2Nb8O28]8- clusters yield the monoclinic crystal phases of Ti2Nb12O29 and TiNb2O7 (titanium-niobium oxides) in different ratios. We also demonstrate a protocol for depositing successive layers of metal oxide films. Finally, we explore factors affecting the roughness of the films.

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author
; ; and
publishing date
type
Contribution to journal
publication status
published
in
Dalton Transactions
volume
50
issue
44
pages
9 pages
publisher
Royal Society of Chemistry
external identifiers
  • pmid:34613326
  • scopus:85119868258
ISSN
1477-9226
DOI
10.1039/d1dt03116c
language
English
LU publication?
no
additional info
Publisher Copyright: © 2021 The Royal Society of Chemistry.
id
39c6caea-7539-4e4b-b5ef-d287da8227bd
date added to LUP
2023-02-15 16:53:01
date last changed
2024-03-21 18:23:39
@article{39c6caea-7539-4e4b-b5ef-d287da8227bd,
  abstract     = {{<p>Niobium oxide thin films have been prepared by spin-coating aqueous solutions of tetramethylammonium salts of the isostructural polyoxometalate clusters [Nb10O28]6-, [TiNb9O28]7- and [Ti2Nb8O28]8- onto silicon wafers, and annealing them. The [Nb10O28]6- cluster yields films of Nb2O5 in the orthorhombic and monoclinic crystal phases when annealed at 800 °C and 1000 °C, respectively, whereas the [TiNb9O28]7- and [Ti2Nb8O28]8- clusters yield the monoclinic crystal phases of Ti2Nb12O29 and TiNb2O7 (titanium-niobium oxides) in different ratios. We also demonstrate a protocol for depositing successive layers of metal oxide films. Finally, we explore factors affecting the roughness of the films.</p>}},
  author       = {{Rambaran, Mark A. and Gorzsás, András and Holmboe, Michael and Ohlin, C. André}},
  issn         = {{1477-9226}},
  language     = {{eng}},
  month        = {{11}},
  number       = {{44}},
  pages        = {{16030--16038}},
  publisher    = {{Royal Society of Chemistry}},
  series       = {{Dalton Transactions}},
  title        = {{Polyoxoniobates as molecular building blocks in thin films}},
  url          = {{http://dx.doi.org/10.1039/d1dt03116c}},
  doi          = {{10.1039/d1dt03116c}},
  volume       = {{50}},
  year         = {{2021}},
}