TY - JOUR
T1 - Silver-Free Gold Nanocages with Near-Infrared Extinctions
AU - Shakiba, Amin
AU - Shah, Shreya
AU - Jamison, Andrew C.
AU - Rusakova, Irene
AU - Lee, Tai Chou
AU - Lee, T. Randall
N1 - Publisher Copyright:
© 2016 American Chemical Society.
PY - 2016/9/30
Y1 - 2016/9/30
N2 - This article reports the preparation of silver-free Au nanocages from cubic palladium templates. Pd nanocubes were subjected to galvanic replacement with Au3+ to produce Pd@Au nanocages having tunable dimensions (i.e., edge length, gold layer thickness, and hollow pore size), which allowed selectable positioning of the optical extinction maxima from the visible to the near infrared. These new nanocages circumvent the problems associated with previous Ag-derived gold alloy nanocages, which suffer from the toxicity of residual silver and the possible fragmentation of such alloyed nanostructures, thereby limiting their potential applications. In contrast, the present materials represent stable, nontoxic, tunable, and hollow plasmonic nanostructures.
AB - This article reports the preparation of silver-free Au nanocages from cubic palladium templates. Pd nanocubes were subjected to galvanic replacement with Au3+ to produce Pd@Au nanocages having tunable dimensions (i.e., edge length, gold layer thickness, and hollow pore size), which allowed selectable positioning of the optical extinction maxima from the visible to the near infrared. These new nanocages circumvent the problems associated with previous Ag-derived gold alloy nanocages, which suffer from the toxicity of residual silver and the possible fragmentation of such alloyed nanostructures, thereby limiting their potential applications. In contrast, the present materials represent stable, nontoxic, tunable, and hollow plasmonic nanostructures.
UR - http://www.scopus.com/inward/record.url?scp=85028922810&partnerID=8YFLogxK
U2 - 10.1021/acsomega.6b00134
DO - 10.1021/acsomega.6b00134
M3 - 期刊論文
AN - SCOPUS:85028922810
SN - 2470-1343
VL - 1
SP - 456
EP - 463
JO - ACS Omega
JF - ACS Omega
IS - 3
ER -