Semiconductor Electrodes: LVII . Differential Photocurrent and Second Harmonic Techniques for in situ Monitoring of Surface States on in Aqueous Solutions

1984 ◽  
Vol 131 (10) ◽  
pp. 2289-2294 ◽  
Author(s):  
Bob L. Wheeler ◽  
G. Nagasubramanian ◽  
Allen J. Bard
Keyword(s):  
Aqueous Solutions ◽  
Second Harmonic ◽  
Surface States ◽  
In Situ Monitoring ◽  
Harmonic Techniques ◽  
Semiconductor Electrodes

scholarly journals Network of Palladium-Based Nanorings Synthesized by Liquid-Phase Reduction Using DMSO-H2O: In Situ Monitoring of Structure Formation and Drying Deformation by ASEM

2020 ◽  
Vol 21 (9) ◽  
pp. 3271 ◽  
Author(s):  
Takuki Komenami ◽  
Akihiro Yoshimura ◽  
Yasunari Matsuno ◽  
Mari Sato ◽  
Chikara Sato
Keyword(s):  
Surface Tension ◽  
Liquid Phase ◽  
Aqueous Solutions ◽  
Critical Point ◽  
Synthesis Method ◽  
Three Dimensional ◽  
In Situ Monitoring ◽  
Critical Point Drying ◽  
Micrometer Size

We developed a liquid-phase synthesis method for Pd-based nanostructure, in which Pd dissolved in dimethyl sulfoxide (DMSO) solutions was precipitated using acid aqueous solution. In the development of the method, in situ monitoring using atmospheric scanning electron microscopy (ASEM) revealed that three-dimensional (3D) Pd-based nanonetworks were deformed to micrometer-size particles possibly by the surface tension of the solutions during the drying process. To avoid surface tension, critical point drying was employed to dry the Pd-based precipitates. By combining ASEM monitoring with critical point drying, the synthesis parameters were optimized, resulting in the formation of lacelike delicate nanonetworks using citric acid aqueous solutions. Precipitation using HCl acid aqueous solutions allowed formation of 500-nm diameter nanorings connected by nanowires. The 3D nanostructure formation was controllable and modifiable into various shapes using different concentrations of the Pd and Cl ions as the parameters.

The Initial Stages of Metal Deposition on Metal and Semiconductor Electrodes Studied byIn SituStm

1996 ◽  
Vol 451 ◽  
Author(s):  
D. M. Kolb ◽  
R. J. Randler ◽  
R. I. Wielgosz ◽  
J. C. Ziegler
Keyword(s):  
Aqueous Solutions ◽  
Scanning Tunneling Microscopy ◽  
Structural Transition ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
First Case ◽  
Bcc Structure ◽  
Pseudomorphic Growth ◽  
Semiconductor Electrodes

ABSTRACTThe deposition of Cu onto Au(100) and of Pb onto n- Si(111) electrodes from aqueous solutions has been monitoredin situby scanning tunneling microscopy. In the first case, a bcc structure of the Cu overlayer is observed, which allows pseudomorphic growth on Au(100) up to the 10th layer. Then a slow structural transition to fee begins. In contrast, Pb on Si(111) is shown to deposit as 3D crystallites with flat (111) terminated surfaces.

In situ monitoring of second-harmonic generation in human corneas to compensate for femtosecond laser pulse attenuation in keratoplasty

2007 ◽  
Vol 12 (6) ◽  
pp. 064032 ◽  
Author(s):  
Valeria Nuzzo ◽  
Karsten Plamann ◽  
Michèle Savoldelli ◽  
Michele Merano ◽  
David Donate ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Femtosecond Laser Pulse ◽  
Second Harmonic ◽  
In Situ Monitoring

In situ monitoring of Raman scattering and photoluminescence from silicon surfaces in HF aqueous solutions

1998 ◽  
Vol 72 (8) ◽  
pp. 933-935 ◽  
Author(s):  
B. Ren ◽  
F. M. Liu ◽  
J. Xie ◽  
B. W. Mao ◽  
Y. B. Zu ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Aqueous Solutions ◽  
In Situ Monitoring ◽  
Silicon Surfaces

In Situ Monitoring of Anodic Oxide Growth on SI (001) by Interface Second-Harmonic Generation

1997 ◽  
Vol 502 ◽  
Author(s):  
S. Janz ◽  
J. A. Bardwell
Keyword(s):  
Space Charge ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Anodic Oxide ◽  
In Situ Monitoring ◽  
Flat Band ◽  
Oxide Growth ◽  
Flat Band Potential ◽  
Oxide Interface

ABSTRACTOptical second-harmonic (SH) generation is used to monitor the anodic growth of oxide on a (001) Si surface. The measured SH intensity is dominated by the nonlinear optical response of the space charge region in the Si just below the Si/oxide interface. The interface SH technique can detect the onset of H desorption, identify the flat band potential, and probe the evolution of space charge within the growing oxide layer.

Structural dependency of collagen fibers on ion types revealed by in situ second harmonic generation (SHG) imaging method

2015 ◽  
Vol 7 (5) ◽  
pp. 1680-1690 ◽  
Author(s):  
Xuye Lang ◽  
Julia G. Lyubovitsky
Keyword(s):  
Second Harmonic Generation ◽  
Aqueous Solutions ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Protein Solubility ◽  
Ionic Species ◽  
Collagen Fibers ◽  
Imaging Method ◽  
Complex Interactions

Ionic species in aqueous solutions alter protein solubility and aggregation behavior through a variety of complex interactions.

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