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This paper studies the self-assembly on gold surfaces of 1,4-ethynylphenyl-4′-ethynylphenyl-2′-nitro-1-benzene-dithiolate (EP2NO 2 ), a substituted phenylene ethynylene trimer with applications in molecular electronics. We develop an ellipsometric technique to measure the optical constants of these self-assembled monolayers, and we also use attenuated total reflection Fourier transform infrared...
We present scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS) measurements of CdSe nanocrystals covalently attached to doped GaAs substrates using monolayers of 1,6-hexanedithiol. STM measurements showed the formation of stable, densely packed, homogeneous monolayers of nanocrystals. STS measurements showed rectifying behaviour, with high currents at the opposite sample...
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