Identification of Dimeric Methylalumina Surface Species during Atomic Layer Deposition Using Operando Surface-Enhanced Raman Spectroscopy

2017 ◽  
Vol 139 (6) ◽  
pp. 2456-2463 ◽  
Author(s):  
Ryan A. Hackler ◽  
Michael O. McAnally ◽  
George C. Schatz ◽  
Peter C. Stair ◽  
Richard P. Van Duyne
Keyword(s):  
Raman Spectroscopy ◽  
Atomic Layer Deposition ◽  
Atomic Layer ◽  
Surface Enhanced Raman Spectroscopy ◽  
Surface Species ◽  
Layer Deposition ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Probing the Chemistry of Alumina Atomic Layer Deposition Using Operando Surface-Enhanced Raman Spectroscopy

2016 ◽  
Vol 120 (7) ◽  
pp. 3822-3833 ◽  
Author(s):  
Sicelo S. Masango ◽  
Ryan A. Hackler ◽  
Anne-Isabelle Henry ◽  
Michael O. McAnally ◽  
George C. Schatz ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Atomic Layer Deposition ◽  
Atomic Layer ◽  
Surface Enhanced Raman Spectroscopy ◽  
Layer Deposition ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Potential-Averaged Surface-Enhanced Raman Spectroscopy

1996 ◽  
Vol 50 (12) ◽  
pp. 1569-1577 ◽  
Author(s):  
Z. Q. Tian ◽  
W. H. Li ◽  
B. W. Mao ◽  
S. Z. Zou ◽  
J. S. Gao
Keyword(s):  
Raman Spectroscopy ◽  
Active Sites ◽  
Single Channel ◽  
Pulse Height ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sers Spectrum ◽  
Surface Species ◽  
Electrode Potentials ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

This paper describes a novel technique called potential-averaged surface-enhanced Raman spectroscopy (PASERS) which has several advantages over SERS. A PASERS spectrum is acquired when the electrode is rapidly modulated between two potentials by applying a square-wave voltage. The potential-averaged SERS spectrum contains all the information on the surface species at the two modulated potentials, and each individual SERS spectrum can then be extracted by deconvolution. By properly choosing the two modulating potentials, one can obtain SERS spectra of surface species at electrode potentials where SERS-active sites are normally unstable. PASERS also leads to a unique way of studying complex interfacial kinetic processes by controlling the voltage pulse height, frequency, and shape. Moreover, the measurement of time-resolved spectra in the very low vibrational frequency region can be achieved by PASERS with the use of a conventional scanning spectrometer with a single-channel detector. In this paper, the main advantages of PASERS are illustrated by studying two typical SERS systems, i.e., thiocyanate ion and thiourea adsorbed at silver electrodes, respectively. It is shown that the potential-averaging method can be applied as a common method to many other existing spectroelectrochemical techniques.

scholarly journals Au-covered hollow urchin-like ZnO nanostructures for surface-enhanced Raman scattering sensing

2019 ◽  
Vol 7 (47) ◽  
pp. 15066-15073 ◽  
Author(s):  
Octavio Graniel ◽  
Igor Iatsunskyi ◽  
Emerson Coy ◽  
Christophe Humbert ◽  
Grégory Barbillon ◽  
...  
Keyword(s):  
Electron Beam ◽  
Atomic Layer Deposition ◽  
Raman Scattering ◽  
Nanosphere Lithography ◽  
Atomic Layer ◽  
Zno Nanostructures ◽  
Layer Deposition ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Au-covered hollow urchin-like ZnO nanostructures were prepared with controlled size by combining nanosphere lithography (NSL), atomic layer deposition (ALD), electrodeposition, and electron beam (e-beam) evaporation.

High-Resolution Distance Dependence Study of Surface-Enhanced Raman Scattering Enabled by Atomic Layer Deposition

Nano Letters ◽  
2016 ◽  
Vol 16 (7) ◽  
pp. 4251-4259 ◽  
Author(s):  
Sicelo S. Masango ◽  
Ryan A. Hackler ◽  
Nicolas Large ◽  
Anne-Isabelle Henry ◽  
Michael O. McAnally ◽  
...  
Keyword(s):  
High Resolution ◽  
Atomic Layer Deposition ◽  
Raman Scattering ◽  
Atomic Layer ◽  
Surface Enhanced Raman Scattering ◽  
Layer Deposition ◽  
Surface Enhanced ◽  
Distance Dependence ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering
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