Maneuvering the Surface Plasmon Resonance of Silver Nanostructures through Shape-Controlled Synthesis

2006 ◽  
Vol 110 (32) ◽  
pp. 15666-15675 ◽  
Author(s):  
Benjamin J. Wiley ◽  
Sang Hyuk Im ◽  
Zhi-Yuan Li ◽  
Joeseph McLellan ◽  
Andrew Siekkinen ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Silver Nanostructures ◽  
Controlled Synthesis ◽  
Shape Controlled

Size-controlled synthesis of Pd nanosheets for tunable plasmonic properties

CrystEngComm ◽  
2015 ◽  
Vol 17 (8) ◽  
pp. 1833-1838 ◽  
Author(s):  
Yi Li ◽  
Yucong Yan ◽  
Yuheng Li ◽  
Hui Zhang ◽  
Dongsheng Li ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Edge Length ◽  
Localized Surface Plasmon ◽  
Controlled Synthesis ◽  
Resonance Properties ◽  
Size Controlled

The Pd nanosheets with controlled edge length were simply synthesized and exhibited tunable localized surface plasmon resonance properties.

Photo-Thermal Conversion and Stability of Gold and Silver Nanostructures

2014 ◽  
Vol 906 ◽  
pp. 204-213 ◽  
Author(s):  
Yuan Ni ◽  
Cai Xia Kan ◽  
Bo Cong ◽  
Jin Sheng Liu ◽  
Hai Ying Xu
Keyword(s):  
Surface Plasmon Resonance ◽  
Laser Irradiation ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Near Infrared ◽  
Shape Change ◽  
Thermal Conversion ◽  
Silver Nanostructures ◽  
Au Nanorods ◽  
Nir Laser

Gold and silver nanostructures (such as Au nanorods and Ag nanoplates) exhibit strong and tunable surface plasmon resonance in the near-infrared region (NIR). Under a certain NIR laser irradiation, noble metal nanostructrues achieve a high photo-thermal effect, which would be useful in the therapy. In this work, Au nanorods with longitude surface plasmon resonance (SPRL) shifting in the region of 650 ~1100 nm were synthesized by a seed method. Ag nanoplates and nanocubes with SPR located in the region of 650~850 nm were produced by a hydrothermal method. Through adjusting laser power and irradiating time, the photo-thermal conversions of these nanostructures were studied under NIR laser irradiation. Under low power laser (808 nm, <1W) irradiation, the shape of the Au nanorods are stable and the temperature of colloid increase from room temperature to ~57°C. However, Au nanorods undergo deformation from rod to spherical particle under irradiation of high power (808 nm laser; 6W; 1064nm laser, 7W), resulting in the disappearance of SPRL. Morphology evolutions and photo-thermal conversion of Ag nanostructures were also studied. Ag nanostructures have a lower photo-thermal conversion compared with that of Au nanorods colloid. Snipping and dendrite can be observed for Ag nanoplates after irradiating, while Ag nanocubes have no obvious shape change.

MORPHOLOGICALLY CONTROLLED SYNTHESIS OF Au NANOCRYSTALS

2010 ◽  
Vol 17 (05n06) ◽  
pp. 493-496
Author(s):  
FENFANG SU ◽  
LIKUN PAN ◽  
YAN ZHENG ◽  
ZHUO SUN
Keyword(s):  
Growth Rate ◽  
Surface Plasmon Resonance ◽  
Crystal Growth ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Chemical Method ◽  
Controlled Synthesis ◽  
Efficient Procedure ◽  
Plasmon Resonance Band ◽  
Resonance Band

In this work, a convenient and efficient procedure to control the morphologies of Au nanocrystals has been reported. The Au nanospheres are generated in polyvinyl-pyrrolidone/ethanol glycol system through a thermal chemical method. However, by adding a small amount of K2CO3 which influences the growth rate of various facets during the crystal growth, Au nanoplates with broad surface plasmon resonance band in 500–800 nm can be obtained.

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