Universität zu Köln

Bueyuekyazi, Mehtap, Fischer, Thomas, Yu, Penmgei, Coll, Mariona ORCID: 0000-0001-5157-7764 and Mathur, Sanjay (2017). A cobalt(II) heteroarylalkenolate precursor for homogeneous Co3O4 coatings by atomic layer deposition. Dalton Trans., 46 (38). S. 12996 - 13002. CAMBRIDGE: ROYAL SOC CHEMISTRY. ISSN 1477-9234

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Abstract

We present a new and efficient cobalt precursor, Co-II(DMOCHCOCF3)(2), to prepare Co3O4 thin films and conformal coatings. In the synthesis of this Co complex, heteroaryl moieties and CF3-groups were combined leading to the precursor with high thermal stability and volatility. The suitability of this precursor for ALD deposition was tested on flat silicon substrates and TiO2/C nanofibers upon process optimization. Deposition at 200 degrees C results in homogeneous and smooth Co3O4 thin films with a growth rate of 0.02 nm per cycle. Conformal coatings have been successfully obtained on TiO2/C nanofibers, making them an attractive platform for surface chemistry studies on high aspect ratio structures for future photo-catalysts, sensors, supercapacitors and batteries.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Bueyuekyazi, Mehtap UNSPECIFIED UNSPECIFIED UNSPECIFIED Fischer, Thomas UNSPECIFIED UNSPECIFIED UNSPECIFIED Yu, Penmgei UNSPECIFIED UNSPECIFIED UNSPECIFIED Coll, Mariona UNSPECIFIED orcid.org/0000-0001-5157-7764 UNSPECIFIED Mathur, Sanjay UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-214291
DOI:	10.1039/c7dt02757e
Journal or Publication Title:	Dalton Trans.
Volume:	46
Number:	38
Page Range:	S. 12996 - 13002
Date:	2017
Publisher:	ROYAL SOC CHEMISTRY
Place of Publication:	CAMBRIDGE
ISSN:	1477-9234
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Inorganic Chemistry
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language THIN-FILMS; CRYSTAL-STRUCTURES; HIGH-CAPACITY; OXIDE; GROWTH; ANODE; STABILIZATION; NANOFIBERS; NANOTUBES; BATTERIES Multiple languages Chemistry, Inorganic & Nuclear Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/21429