Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10669634 | Thin Solid Films | 2015 | 5 Pages |
Abstract
Polymethyl methacrylate (PMMA)-coated Zn2SnO4 nanowires were synthesized by a two-step process: thermal evaporation of a mixture of Zn and Sn powders at 700 °C in an oxidizing atmosphere followed by spin coating of PMMA solution. The nanowires were 30-80 nm in diameter and up to a few hundred of micrometers in length. Photoluminescence showed that the near-band edge (NBE) emission-to-visible emission ratio of Zn2SnO4 was enhanced significantly by PMMA coating. The highest NBE emission-to-visible emission ratio was obtained at a PMMA concentration of 0.25 mM. INBE/IDL was increased almost 10 times by coating the nanowires with 0.25-mM PMMA. The enhanced NBE emission and suppressed visible emission might be due to enhanced excitonic emission efficiency.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Sunghoon Park, Soohyun Kim, Seungbok Choi, Sangmin Lee, Chongmu Lee,