title: Cis-to-trans photoconversion of azobenzene self-assembled monolayers on gold nanoparticle surfaces investigated by Raman spectroscopy.
abstract: Cis-trans photoconversion behaviors of 4-dimethylaminoazobenzenecarboxylate (4DAzC) on gold nanoparticle surfaces have been investigated by means of Raman spectroscopy. The vibrational features indicated that both the cis- and trans-conformation should coexist after the adsorption on gold nanoparticle surfaces. After the irradiation of the blue light, the intensities of the cis-form peaks were found to decrease on gold. Our work can demonstrate that Raman spectroscopy can be utilized in studying the photoconversion of azobenzene-containing self-assembled monolayers fabricated on metal surfaces.
authors.affiliation: College of Environment and Applied Chemistry, Kyung Hee University, Yongin, 446-701, Korea.
authors.forename: Sung Ik
authors.initials: SI
authors.lastname: Yang
authors.forename: Ki-Hyun
authors.initials: KH
authors.lastname: Kim
authors.forename: Daeseung
authors.initials: D
authors.lastname: Kang
authors.forename: Sang-Woo
authors.initials: SW
authors.lastname: Joo