作者
Tsz Him Chow, Nannan Li, Xiaopeng Bai, Xiaolu Zhuo, Lei Shao, Jianfang Wang
发表日期
2019/8/1
来源
Accounts of chemical research
卷号
52
期号
8
页码范围
2136-2146
出版商
American Chemical Society
简介
Conspectus
Gold nanobipyramids (Au NBPs) and gold nanorods (Au NRs) are two types of elongated plasmonic nanoparticles with their longitudinal dipolar plasmon wavelengths synthetically tunable from the visible region to the near-infrared region. Both have highly polarization-dependent absorption and scattering cross sections because of their anisotropic geometries. In terms of their differences, each Au NBP has five equally angularly separated twinning planes that are aligned parallel to the length direction, while the most common Au NRs are single-crystalline. As a result, Au NBPs possess two sharp end tips, while Au NRs have rounded or flat ends, resulting in very different plasmonic properties. In general, Au NBPs exhibit larger local electric field enhancements, larger optical cross sections, narrower line widths, better shape and size uniformity, and higher refractive index sensitivity than Au NRs. With the …
学术搜索中的文章
TH Chow, N Li, X Bai, X Zhuo, L Shao, J Wang - Accounts of chemical research, 2019