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Plasmon Enhanced Direct Bandgap Emissions in Cu 7 S 4 @Au 2 S@Au Nanorings
Author(s) -
Yoon Donghwan,
Yoo SeokJae,
Nam Kyoung Sik,
Baik Hionsuck,
Lee Kwangyeol,
Park QHan
Publication year - 2016
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201602112
Subject(s) - plasmon , materials science , band gap , copper , copper sulfide , semiconductor , nanoparticle , absorption (acoustics) , nanotechnology , optoelectronics , metallurgy , composite material
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 7 S 4 @Au 2 S@Au nanorings exhibiting plasmon enhanced emissions at the direct bandgap is reported. The synthesized Cu 7 S 4 @Au 2 S@Au nanorings show greatly enhanced absorption and emission by local plasmons compared to pure copper sulfide nanoparticles.