Abstract
Light-emitting 5,6,11,12-tetraphenylnaphthacene (rubrene) nanoparticles (NPs) prepared by a reprecipitation method were treated hydrothermally. The diameters of hydrothermally treated rubrene NPs were changed from 100 nm to 2 μm, depending on hydrothermal temperature. Photoluminescence (PL) characteristics of rubrene NPs varied with hydrothermal temperatures. Luminescence of pristine rubrene NPs was yellow-orange, and it changed to blue as the hydrothermal temperature increased to 180°C. The light-emitting color distribution of the NPs was confirmed using confocal laser spectrum microscope. As the hydrothermal temperature increased from 110°C to 160°C, the blue light emission at 464 to approximately 516 nm from filtered-down NPs was enhanced by H-type aggregation. Filtered-up rubrene NPs treated at 170°C and 180°C exhibited blue luminescence due to the decrease of intermolecular excimer densities with the rapid increase in size. Variations in PL of hydrothermally treated rubrene NPs resulted from different size distributions of the NPs.
| Original language | English |
|---|---|
| Article number | 405 |
| Pages (from-to) | 1-8 |
| Number of pages | 8 |
| Journal | Nanoscale Research Letters |
| Volume | 6 |
| DOIs | |
| Publication status | Published - 2011 Dec 1 |
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ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
Cite this
Tuning photoluminescence of organic rubrene nanoparticles through a hydrothermal process. / Kim, Mi Suk; Cho, Eun Hei; Park, Dong Hyuk; Jung, Hyunjung; Bang, Joona; Joo, Jinsoo.
In: Nanoscale Research Letters, Vol. 6, 405, 01.12.2011, p. 1-8.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Tuning photoluminescence of organic rubrene nanoparticles through a hydrothermal process
AU - Kim, Mi Suk
AU - Cho, Eun Hei
AU - Park, Dong Hyuk
AU - Jung, Hyunjung
AU - Bang, Joona
AU - Joo, Jinsoo
PY - 2011/12/1
Y1 - 2011/12/1
N2 - Light-emitting 5,6,11,12-tetraphenylnaphthacene (rubrene) nanoparticles (NPs) prepared by a reprecipitation method were treated hydrothermally. The diameters of hydrothermally treated rubrene NPs were changed from 100 nm to 2 μm, depending on hydrothermal temperature. Photoluminescence (PL) characteristics of rubrene NPs varied with hydrothermal temperatures. Luminescence of pristine rubrene NPs was yellow-orange, and it changed to blue as the hydrothermal temperature increased to 180°C. The light-emitting color distribution of the NPs was confirmed using confocal laser spectrum microscope. As the hydrothermal temperature increased from 110°C to 160°C, the blue light emission at 464 to approximately 516 nm from filtered-down NPs was enhanced by H-type aggregation. Filtered-up rubrene NPs treated at 170°C and 180°C exhibited blue luminescence due to the decrease of intermolecular excimer densities with the rapid increase in size. Variations in PL of hydrothermally treated rubrene NPs resulted from different size distributions of the NPs.
AB - Light-emitting 5,6,11,12-tetraphenylnaphthacene (rubrene) nanoparticles (NPs) prepared by a reprecipitation method were treated hydrothermally. The diameters of hydrothermally treated rubrene NPs were changed from 100 nm to 2 μm, depending on hydrothermal temperature. Photoluminescence (PL) characteristics of rubrene NPs varied with hydrothermal temperatures. Luminescence of pristine rubrene NPs was yellow-orange, and it changed to blue as the hydrothermal temperature increased to 180°C. The light-emitting color distribution of the NPs was confirmed using confocal laser spectrum microscope. As the hydrothermal temperature increased from 110°C to 160°C, the blue light emission at 464 to approximately 516 nm from filtered-down NPs was enhanced by H-type aggregation. Filtered-up rubrene NPs treated at 170°C and 180°C exhibited blue luminescence due to the decrease of intermolecular excimer densities with the rapid increase in size. Variations in PL of hydrothermally treated rubrene NPs resulted from different size distributions of the NPs.
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U2 - 10.1186/1556-276X-6-405
DO - 10.1186/1556-276X-6-405
M3 - Article
C2 - 21711925
AN - SCOPUS:84862922813
VL - 6
SP - 1
EP - 8
JO - Nanoscale Research Letters
JF - Nanoscale Research Letters
SN - 1931-7573
M1 - 405
ER -