TY - JOUR
T1 - Estimated phase transition and melting temperature of APTES self-assembled monolayer using surface-enhanced anti-stokes and stokes Raman scattering
AU - Sun, Yingying
AU - Yanagisawa, Masahiro
AU - Kunimoto, Masahiro
AU - Nakamura, Masatoshi
AU - Homma, Takayuki
N1 - Funding Information:
This research was partially supported by “Development of Systems and Technology for Advanced Measurement and Analysis” and a Grant-in-Aid for Scientific Research from MEXT, Japan. The manuscript has been edited by Editage.
Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
PY - 2016/2/15
Y1 - 2016/2/15
N2 - A structure's temperature can be determined from the Raman spectrum using the frequency and the ratio of the intensities of the anti-Stokes and Stokes signals (the I as /I s ratio). In this study, we apply this approach and an equation relating the temperature, Raman frequency, and I as /I s ratio to in-situ estimation of the phase change point of a (3-aminopropyl)triethoxysilane self-assembled monolayer (APTES SAM). Ag nanoparticles were deposited on APTES to enhance the Raman signals. A time-resolved measurement mode was used to monitor the variation in the Raman spectra in situ. Moreover, the structural change in APTES SAM (from ordered to disordered structure) under heating was discussed in detail, and the phase change point (around 118 °C) was calculated.
AB - A structure's temperature can be determined from the Raman spectrum using the frequency and the ratio of the intensities of the anti-Stokes and Stokes signals (the I as /I s ratio). In this study, we apply this approach and an equation relating the temperature, Raman frequency, and I as /I s ratio to in-situ estimation of the phase change point of a (3-aminopropyl)triethoxysilane self-assembled monolayer (APTES SAM). Ag nanoparticles were deposited on APTES to enhance the Raman signals. A time-resolved measurement mode was used to monitor the variation in the Raman spectra in situ. Moreover, the structural change in APTES SAM (from ordered to disordered structure) under heating was discussed in detail, and the phase change point (around 118 °C) was calculated.
KW - APTES SAM
KW - Anti-Stokes and Stokes Raman
KW - In situ time resolved measurement
KW - Melting point
KW - Phase transition
KW - SERS
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U2 - 10.1016/j.apsusc.2015.12.035
DO - 10.1016/j.apsusc.2015.12.035
M3 - Article
AN - SCOPUS:84957894782
SN - 0169-4332
VL - 363
SP - 572
EP - 577
JO - Applied Surface Science
JF - Applied Surface Science
ER -