Recent trends in noble metal nanoparticles for colorimetric chemical sensing and micro-electronic packaging applications

Anurag Gautam, Pragya Komal, Prabhat Gautam, Ashutosh Sharma, Neeraj Kumar, Jae Pil Jung

Research output: Contribution to journalReview articlepeer-review

20 Scopus citations

Abstract

Noble metal NPs are highly attractive candidates because of their unique combination of physical, chemical, mechanical, and structural properties. A lot of developments in this area are still fascinating the materials research community, and are broadly categorized in various sectors such as chemical sensors, biosensors, Förster resonance energy transfer (FRET), and microelectronic applications. The related function and properties of the noble metals in these areas can be further tailored by tuning their chemical, optical, and electronic properties that are influenced by their size, shape, and distribution. The most widely used Au and Ag NPs in dispersed phase below 100 nm exhibit strong color change in the visible range which alters upon aggregation of the NPs. The chemical sensing of the analyte is influenced by these NPs aggregates. In this article, we have summarized the uniqueness of noble metal NPs, their synthesis methods, nucleation and growth process, and their important applications in chemical sensing, microelectronic packaging, and Förster resonance energy transfer.

Original languageEnglish
Article number329
Pages (from-to)1-21
Number of pages21
JournalMetals
Volume11
Issue number2
DOIs
StatePublished - Feb 2021

Keywords

  • Colloid
  • Crystalline
  • Hydrothermal
  • Microelectronic systems
  • Nanostructure
  • Nucleation and growth

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