TY - GEN
T1 - Graphened IR screens
T2 - 2008 MRS Fall Meeting
AU - Banerjee, Amrita
AU - Moeller, Dieter
AU - Grebel, Haim
PY - 2008
Y1 - 2008
N2 - Metallo-dielectric screens are periodic structures, which are at resonance with the infrared (IR) wavelength of interest: a standing wave of surface charges is formed at resonance conditions, which enables transmission or, reflection of certain IR bands. Graphene is a monolayer thick crystal of carbon. It is chemically inert and exhibits very large electronic mobility. Recently, we succeeded in fabricating mono and a few-layered suspended graphene on top of these screens. We combined these two unique components in fabricating novel platforms, which enhance IR signals of soft bio-species. Specifically, we used these platforms to examine IR spectra of a model protein, cytochrome c from a bovine heart tissue. Clear Raman signal variation as a function of platform orientation has been demonstrated. Accentuation of the IR absorption spectra was shown as well.
AB - Metallo-dielectric screens are periodic structures, which are at resonance with the infrared (IR) wavelength of interest: a standing wave of surface charges is formed at resonance conditions, which enables transmission or, reflection of certain IR bands. Graphene is a monolayer thick crystal of carbon. It is chemically inert and exhibits very large electronic mobility. Recently, we succeeded in fabricating mono and a few-layered suspended graphene on top of these screens. We combined these two unique components in fabricating novel platforms, which enhance IR signals of soft bio-species. Specifically, we used these platforms to examine IR spectra of a model protein, cytochrome c from a bovine heart tissue. Clear Raman signal variation as a function of platform orientation has been demonstrated. Accentuation of the IR absorption spectra was shown as well.
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M3 - Conference contribution
AN - SCOPUS:77950511326
SN - 9781615677672
T3 - Materials Research Society Symposium Proceedings
SP - 98
EP - 102
BT - Materials for Optical Sensors in Biomedical Applications
Y2 - 2 December 2008 through 4 December 2008
ER -