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Characterization of surface modified ZnCuInS2 nanocrystals and its application to white light-emitting diodes
- Issue Date
- 1-4월-2013
- Publisher
- OPTICAL SOC AMER
- Citation
- APPLIED OPTICS, v.52, no.10, pp.1992 - 1997
- Indexed
- SCIE
SCOPUS
- Journal Title
- APPLIED OPTICS
- Volume
- 52
- Number
- 10
- Start Page
- 1992
- End Page
- 1997
- ISSN
- 1559-128X
- Abstract
- Red-emitting ZnCuInS2 semiconductor nanocrystals (NCs) were synthesized and surface modification was performed on the NCs with oleylamine, trioctylphosphine, and 3-mercaptopropionic acid by the ligand exchange strategy. UV-visible spectroscopy, photoluminescence (PL) spectroscopy, time-resolved PL analysis, and attenuated total reflection Fourier transform infrared spectroscopy were used to verify the surface modification of NCs. Additionally, white light-emitting diodes (LEDs) were fabricated using surface modified red-emitting ZnCuInS2 NCs as red phosphor to compensate for the deficiency of red emission in white LEDs, consisting of blue LEDs as excitation sources and YAG:Ce as yellow phosphor. (C) 2013 Optical Society of America
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