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Weber, J.W. (author), Calado, V.E. (author), Van de Sanden, M.C.M. (author)A mechanically exfoliated graphene flake ( ? 150×380??m2) on a silicon wafer with 98 nm silicon dioxide on top was scanned with a spectroscopic ellipsometer with a focused spot ( ? 100×55??m2) at an angle of 55°. The spectroscopic ellipsometric data were analyzed with an optical model in which the optical constants were parameterized by B...journal article 2010
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Han, B. (author), Liang, H. (author), Lin, H. (author), Zhong, J. (author), Su, Q. (author), Dorenbos, P. (author), Birowosuto, M.D. (author), Zhang, G. (author), Fu, Y. (author)The phosphors Ba3Gd(BO3)3:Ce3+ were prepared by a solid-state reaction technique at high temperature. The vacuum ultraviolet-ultraviolet and visible spectroscopic properties of the phosphors together with decay time curves are investigated and discussed. The spectroscopic properties are explained by occupancy of Ce3+ at two different Gd sites in...journal article 2007
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Grozema, F.C. (author), Telesca, R. (author), Snijders, J.G. (author), Siebbeles, L.D.A. (author)This paper discusses a time-dependent density functional theory study of the effect of molecular structure on the excited state polarizability of conjugated molecules. A short phenylenevinylene oligomer containing three phenyl rings (PV2, distyryl benzene) is taken as a model system. Introduction of methyl substituents is shown to have only a...journal article 2003
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Grozema, F.C. (author), Candeias, L.P. (author), Swart, M. (author), Van Duijnen, P.T. (author), Wildeman, J. (author), Hadziioanou, G. (author), Siebbeles, L.D.A. (author), Warman, J.M. (author)In this paper a combined experimental and quantum chemical study of the geometry and opto-electronic properties of unsubstituted and dialkoxy-sustituted phenylene–vinylene oligomers (PV’s) is presented. The optical absorption spectra for PV cations with different chain lengths and substitution patterns were measured using pulse radiolysis with...journal article 2002