Deposition of silver dentritic nanostructures on silicon for enhanced fluorescence

Krystyna Drozdowicz-Tomsia*, Fang Xie, Ewa M. Goldys

*Corresponding author for this work

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Silver dendritic ("fractal") structures exhibit very high fluorescence enhancement, but their nonuniformity limits practical applications. Here, we present a novel, electroless deposition approach to produce uniform silver dendritic nanostructures on silicon for enhanced fluorescence. These metal-modified surfaces were allowed to bind a protein bovine serum albumin (BSA) labeled with the fluorescent dye Deep Purple. The effect of silver nanostructures on fluorescence intensity and lifetime in the presence of a conductive, absorbing substrate was analyzed, and high enhancement factors between 30 and 40 times were found. Such silicon-based structures with high fluorescence enhancement factors are suitable for integration with lab-on-chip and biosensing microelectronic Devices.

Original languageEnglish
Pages (from-to)1562-1569
Number of pages8
JournalJournal of Physical Chemistry C
Volume114
Issue number3
DOIs
Publication statusPublished - 28 Jan 2010

Fingerprint Dive into the research topics of 'Deposition of silver dentritic nanostructures on silicon for enhanced fluorescence'. Together they form a unique fingerprint.

Cite this