Synthesis and characterization of cobalt precursors for the growth of magnetic thin films by the MOCVD method

Papadopoulos, ND; Illekova, E; Karayanni, HS; Hristoforou, E

dc.contributor.author	Papadopoulos, ND	en
dc.contributor.author	Illekova, E	en
dc.contributor.author	Karayanni, HS	en
dc.contributor.author	Hristoforou, E	en
dc.date.accessioned	2014-03-01T02:45:48Z
dc.date.available	2014-03-01T02:45:48Z
dc.date.issued	2008	en
dc.identifier.issn	1454-4164	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32401
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-44949146192&partnerID=40&md5=34cfceabd1405e443ee7cac23235856f	en
dc.subject	Acetylacetonates	en
dc.subject	Characterization	en
dc.subject	Cobalt precursors	en
dc.subject	Cyclodextrins	en
dc.subject	Metallization	en
dc.subject	MOCVD	en
dc.subject	Synthesis	en
dc.subject	Thin films	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.classification	Optics	en
dc.subject.classification	Physics, Applied	en
dc.subject.other	CHEMICAL-VAPOR-DEPOSITION	en
dc.subject.other	TRICARBONYL NITROSYL	en
dc.subject.other	METAL	en
dc.subject.other	CVD	en
dc.title	Synthesis and characterization of cobalt precursors for the growth of magnetic thin films by the MOCVD method	en
heal.type	conferenceItem	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	Two different organometallic precursors for Co metallization by MOCVD, namely cobalt acetylacetonate and the inclusion complex of P-cyclodextrin with cobalt iodide were synthesized in the laboratory and were characterized by means of X-Ray diffraction and differential thermal analysis. It was found that both samples were polycrystalline. The hydrated form of beta-diketonates presents higher crystallinity than the anhydrous one and even higher when a few drops of NH3 along with the NaOH solution was used. The inclusion complex exhibits a highly oriented character, in contrast with its parent beta-cyclodextrin, with most crystal directions however remaining the same upon complexing. As it was observed by DTA, both samples partially volatized before 170 degrees C. Within the temperature range of 320-410 degrees C, oxidative decomposition of the hydrated cobalt acetylacetonate was strongly intensified. The dextrin inclusion complex may prove an innovative Co precursor for precise MOCVD applications at around 170 degrees C, where all easily movable crystalline waters and iodide ions have moved out. Beyond 170 degrees C the parent beta-cyclodextrin shows remarkable thermal stability and upon complexing with cobalt acetylacetonate the latter's thermal stability can be improved significantly.	en
heal.publisher	NATL INST OPTOELECTRONICS	en
heal.journalName	Journal of Optoelectronics and Advanced Materials	en
dc.identifier.isi	ISI:000256499900022	en
dc.identifier.volume	10	en
dc.identifier.issue	5	en
dc.identifier.spage	1098	en
dc.identifier.epage	1102	en