Plasmon Enhanced Direct Bandgap Emissions in Cu7S4 at Au2S at Au Nanorings

Donghwan Yoon, Seokjae Yoo, Kyoung Sik Nam, Hionsuck Baik, Kwangyeol Lee, Q Han Park

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Nanostructured copper sulfides, promising earth-abundant p-type semiconductors, have found applications in a wide range of fields due to their versatility, tunable low bandgap, and environmental sustainability. The synthesis of hexagonal Cu7S4 at Au2S at Au nanorings exhibiting plasmon enhanced emissions at the direct bandgap is reported. The synthesized Cu7S4 at Au2S at Au nanorings show greatly enhanced absorption and emission by local plasmons compared to pure copper sulfide nanoparticles.

Original languageEnglish
JournalSmall
DOIs
Publication statusAccepted/In press - 2016

Keywords

  • Cation exchanges
  • Copper sulfides
  • Surface plasmons
  • Templates, nanorings

ASJC Scopus subject areas

  • Biomaterials
  • Engineering (miscellaneous)
  • Biotechnology

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