scholarly journals Manipulating acoustic and plasmonic modes in gold nanostars

2019 ◽  
Vol 1 (7) ◽  
pp. 2690-2698
Author(s):  
Sharmistha Chatterjee ◽  
Loredana Ricciardi ◽  
Julia I. Deitz ◽  
Robert E. A. Williams ◽  
David W. McComb ◽  
...  

In this contribution experimental evidence of plasmonic edge modes and acoustic breathing modes in gold nanostars (AuNSs) is reported. AuNSs are synthesized by a surfactant-free, one-step wet-chemistry method.

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
D. Scarpellini ◽  
C. Leonardi ◽  
A. Mattoccia ◽  
L. Di Giamberardino ◽  
P. G. Medaglia ◽  
...  

We have grown nanostructured films of Zn/Al Layered Double Hydroxide (LDH) on different substrates by combining the deposition of an aluminum micropatterned thin layer with a successive one-step room-temperature wet-chemistry process. The resulting LDH film is made of lamellar-like nanoplatelets mainly oriented perpendicular to the substrate. Since the aluminum layer acts as both reactant and seed for the synthesis of the LDH, the growth can be easily confined with submicrometric-level resolution (about ±0.5 μm) by prepatterning the aluminum layer with conventional photolithographic techniques. Moreover, we demonstrate real-time monitoring of the LDH growth process by simply measuring the resistance of the residual aluminum film. If the aluminum layer is thinner than 250 nm, the morphology of LDH nanoplatelets is less regular and their final thickness linearly depends on the initial amount of aluminum. This peculiarity allows accurately controlling the LDH nanoplatelet thickness (with uncertainty of about ±10%) by varying the thickness of the predeposited aluminum film. Since the proposed growth procedure is fully compatible with MEMS/CMOS technology, our results may be useful for the fabrication of micro-/nanodevices.


2015 ◽  
Vol 1112 ◽  
pp. 57-61 ◽  
Author(s):  
Amalia Sholehah ◽  
Akhmad Herman Yuwono

In the present work, ZnO nanostructures were synthesized via wet chemistry method. The seeding solution was prepared from zinc nitrate tetrahydrate and hexamethylenetetramine. Prior to the heating process, the seeding solution was immersed in cold bath (0°C). XRD analysis had shown sharp peaks in diffractogram, indicating the high crystallinity of ZnO nanostructures. The crystallite size was determined using Scherrer equation and Williamson-Hall method. Other relevant parameters including stress, strain, and energy density were calculated using Williamson-Hall assuming UDM, UDSM, and UDEDM. The results had revealed that crystallite size calculated with Williamson-Hall method is more accurate than Scherrer equation.


2011 ◽  
Vol 11 (12) ◽  
pp. 11028-11031 ◽  
Author(s):  
Dan Zhou ◽  
Markus Boese ◽  
Rongming Wang ◽  
Hongzhou Zhang

2020 ◽  
Vol 44 (26) ◽  
pp. 11215-11223 ◽  
Author(s):  
Feng Guo ◽  
Haoran Sun ◽  
Lei Cheng ◽  
Weilong Shi

A carbon dots/oxygen-defective ZnO (COZ) porous nanosheet composite photocatalyst was prepared via a one-step liquid-phase wet chemistry method for the highly efficient visible-light photocatalytic degradation of tetracycline (TC).


2019 ◽  
Vol 6 (7) ◽  
pp. 1900015 ◽  
Author(s):  
Miaomiao Liu ◽  
Zihao Zhang ◽  
Francis Okejiri ◽  
Shize Yang ◽  
Shenghu Zhou ◽  
...  

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