Plasmon Enhanced Direct Bandgap Emissions in Cu sub(7)S sub(4)u sub(2)Su Nanorings

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 Cu sub(7)S sub(4)u sub(2)Su nanorings exhibiting plasmon enhan...

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Bibliographic Details
Published in:Small (Weinheim an der Bergstrasse, Germany) Germany), 2016-11, Vol.12 (41), p.5728-5733
Main Authors: Yoon, Donghwan, Yoo, SeokJae, Nam, Kyoung Sik, Baik, Hionsuck, Lee, Kwangyeol, Park, Q-Han
Format: Article
Language:English
Subjects:
Absorption
COPPER (PURE)
COPPER SULFIDE
Copper sulfides
Emission
EMISSIONS
Energy gaps (solid state)
FABRICATION
MICROSTRUCTURES
Nanostructure
Plasmons
SULFIDES
Sustainability
Synthesis
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Summary: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 Cu sub(7)S sub(4)u sub(2)Su nanorings exhibiting plasmon enhanced emissions at the direct bandgap is reported. The synthesized Cu sub(7)S sub(4)u sub(2)Su nanorings show greatly enhanced absorption and emission by local plasmons compared to pure copper sulfide nanoparticles. Hexagonal Cu sub(7)S sub(4)u sub(2)Su nanorings are synthesized and plasmonically enhanced emission is demonstrated at the direct bandgap in copper sulfides. Plasmon enhanced direct band transitions of hexagonal Cu sub(7)S sub(4)u sub(2)Su nanorings exhibit enhanced absorption, scattering, and photoluminescence.
ISSN:1613-6810
1613-6829
DOI:10.1002/smll.201602112