5 years ago

Precise Control of the Lateral and Vertical Growth of Two-Dimensional Ag Nanoplates

Precise Control of the Lateral and Vertical Growth of Two-Dimensional Ag Nanoplates
Chengyu Li, Cheng Wang, Lili Yao, Huiling Liu, Taixing Tan
Tuning localized surface plasmon resonance (LSPR) is crucial for practical applications of two-dimensional Ag nanoplates (AgNPs) and relies on the precise control of their lateral length or/and thickness. In the present seed-mediated synthetic method, by taking advantage of underpotential deposition (UPD) of Cu on the (111) surfaces of AgNPs, a solely lateral growth of AgNPs was achieved when Cu(NO3)2 was employed, while a vertical growth of AgNPs could be attained by introducing CuCl2 into our growth solutions. The lateral length and the vertical thickness of the AgNPs could be tuned in the ranges of 115 to nearly 300 nm and 13.4 to around 200 nm, respectively. Along with control of the dimensional size of AgNPs, LSPR could also be tuned in the visible to near infrared range. Plausible growth mechanisms for the precise control of the lateral and vertical growth of AgNPs were proposed. Direction-controlled growth: The growth direction of Ag nanoplates can be precisely controlled along the lateral or vertical direction exclusively by introduction of Cu(NO3)2 or CuCl2, respectively. The lateral growth was favored by Cu underpotential deposition (UDP) formed on (111) faces, while the vertical growth was dominated in the coexistence of Cl− and Cu2+.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/chem.201701146

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.