Highly bright and sharp light emission of a single nanoparticle of crystalline rubrene
- Authors
- Park, Dong Hyuk; Jo, Seong Gi; Hong, Young Ki; Cui, Chunzhi; Lee, Hyunsoo; Ahn, Dong June; Kim, Jeongyong; Joo, Jinsoo
- Issue Date
- 2011
- Publisher
- ROYAL SOC CHEMISTRY
- Keywords
- SEMICONDUCTOR NANOCRYSTALS; OPTICAL-PROPERTIES; ORGANIC-CRYSTALS; PHOTOLUMINESCENCE; NANOMATERIALS; LUMINESCENCE; TRANSISTORS; ARRAYS; CELLS
- Citation
- JOURNAL OF MATERIALS CHEMISTRY, v.21, no.22, pp.8002 - 8007
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF MATERIALS CHEMISTRY
- Volume
- 21
- Number
- 22
- Start Page
- 8002
- End Page
- 8007
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/114960
- DOI
- 10.1039/c1jm10530b
- ISSN
- 0959-9428
- Abstract
- We report on the fabrication and nanoscale luminescence characteristics of an isolated rubrene single nanoparticle (NP). A solvent-vapor annealing process changed pristine rubrene NPs, prepared by a reprecipitation method, to perfect crystalline NPs. The formation and structural properties of crystalline and non-crystalline rubrene NPs were studied through SEM, HR-TEM, and X-ray diffraction experiments. The nanoscale photoluminescence (PL) characteristics and the luminescence color of the rubrene single NP were measured using a high-resolution laser confocal microscope with color charge-coupled device images. In comparison with the pristine rubrene NPs, the crystalline NPs exhibited highly bright and sharp light emission. The main PL peak at 561-562 nm for the crystalline rubrene single NP had a relatively narrow line-width and became more dominant through a solvent-vapor annealing. The enhanced and sharp light emission of the crystalline rubrene single NP originated from the strong pi-pi interaction of rubrene molecules along the major crystalline axis in the nano-sized structure.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
- College of Science > Department of Physics > 1. Journal Articles
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