Author:
Amran Tengku Sarah Tengku,Hashim Md Roslan,Al-Obaidi Nihad K Ali,Yazid Hanani,Adnan Rohana
Abstract
Abstract
We present an investigation on a coupled system consists of gold nanoparticles and silicon nanocrystals. Gold nanoparticles (AuNPs) embedded into porous silicon (PSi) were prepared using the electrochemical deposition method. Scanning electron microscope images and energy-dispersive X-ray results indicated that the growth of AuNPs on PSi varies with current density. X-ray diffraction analysis showed the presence of cubic gold phases with crystallite sizes around 40 to 58 nm. Size dependence on the plasmon absorption was studied from nanoparticles with various sizes. Comparison with the reference sample, PSi without AuNP deposition, showed a significant blueshift with decreasing AuNP size which was explained in terms of optical coupling between PSi and AuNPs within the pores featuring localized plasmon resonances.
Publisher
Springer Science and Business Media LLC
Subject
Condensed Matter Physics,General Materials Science
Reference22 articles.
1. Polisski S, Goller B, Heck SC, Maier SC, Fujii M, Kovalev D: Formation of metal nanoparticles in silicon nanopores: plasmon resonance studies. Appl Phys Lett 2011, 98: 011912. 10.1063/1.3537811
2. Oskam G, Long JG, Natarajan A, Searson PC: Electrochemical deposition of metals onto silicon. J Phys D: Appl Phys 1927, 1998: 31.
3. Yavuz MS, Jensen GC, Penaloza DP, Seery TAP, Pendergraph SA, Rusling JF, Sotzing GA: Gold nanoparticles with externally controlled, reversible shifts of local surface plasmon resonance bands. Langmuir 2009, 25: 13120–13124. 10.1021/la901779k
4. Gösele U, Frank W, Seeger A: Mechanism and kinetics of the diffusion of gold in silicon. Appl Phys Mater Sci Process 1980, 23: 361–368.
5. Bullis WM: Properties of gold in silicon. Solid State Electron 1966, 9: 143–168. 10.1016/0038-1101(66)90085-2
Cited by
38 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献