Ellipsometric determinations of the thicknesses of dry and electrolyte-immersed poly(4-vinylpyridine) films containing coordinated light-absorbing [Os(bpy)2pvpCl]2+/+ redox groups

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Fältnamn	Indikatorer	Metadata
000		02469naa a2200301 4500
001		oai:DiVA.org:umu-112729
003		SwePub
008		151214s1994 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1127292 URI
024	7	a https://doi.org/10.1016/0022-0728(93)02992-Q2 DOI
040		a (SwePub)umu
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Larsson, Henriku Umeå universitet,Kemiska institutionen4 aut0 (Swepub:umu)hela0002
245	1 0	a Ellipsometric determinations of the thicknesses of dry and electrolyte-immersed poly(4-vinylpyridine) films containing coordinated light-absorbing [Os(bpy)2pvpCl]2+/+ redox groups
264	1	b Elsevier,c 1994
338		a print2 rdacarrier
520		a Ellipsometry has been used to measure the dimensions of quaternized poly(4-vinylpyridine) films containing [Os(bpy)2pvpCl]2+/+ redox groups on glassy carbon electrodes. Film thicknesses and complex refractive indices were deduced using molar absorptivities obtained from photometry or a combination of photometry and cyclic voltammetry. The precision in the film thicknesses was estimated using data obtained from thick and thin films with the same polymer + redox group compositions and from data recorded at 60-degrees and 70-degrees angles of incidence of 633 nm laser light. The effects of errors in the experimentally determined molar absorptivity of the redox groups on film thickness were also assessed. The results of this study suggest that reliable thicknesses can be obtained for both dry and electrolyte-swollen films, and that the presence of light-absorbing redox groups within coatings such as these presents no real obstacle for ellipsometric determinations.
650	7	a NATURVETENSKAPx Kemix Fysikalisk kemi0 (SwePub)104022 hsv//swe
650	7	a NATURAL SCIENCESx Chemical Sciencesx Physical Chemistry0 (SwePub)104022 hsv//eng
650	7	a NATURVETENSKAPx Kemix Analytisk kemi0 (SwePub)104012 hsv//swe
650	7	a NATURAL SCIENCESx Chemical Sciencesx Analytical Chemistry0 (SwePub)104012 hsv//eng
710	2	a Umeå universitetb Kemiska institutionen4 org
773	0	t Journal of Electroanalytical Chemistryd : Elsevierg 365:1-2, s. 229-237q 365:1-2<229-237x 1572-6657x 1873-2569
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-112729
856	4 8	u https://doi.org/10.1016/0022-0728(93)02992-Q

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Av författaren/redakt...: Larsson, Henrik

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NATURVETENSKAP: NATURVETENSKAP; och Kemi; och Fysikalisk kemi

NATURVETENSKAP: NATURVETENSKAP; och Kemi; och Analytisk kemi

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Av lärosätet: Umeå universitet

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