Highly Luminescent Organic Nanorods from Air Oxidation of para-Substituted Anilines for Freestanding Deep-Red Color Filters
- Authors
- Park, Yoonsang; Park, Cheolwoo; Kim, Joo Sung; Ahn, Tae Kyu; Lim, Ho Sun; Lee, Tae-Woo; Kwon, Woosung
- Issue Date
- Nov-2018
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- aniline; luminescence; nanorods; phenazine; red emission
- Citation
- ADVANCED OPTICAL MATERIALS, v.6, no.22
- Journal Title
- ADVANCED OPTICAL MATERIALS
- Volume
- 6
- Number
- 22
- URI
- https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/4206
- DOI
- 10.1002/adom.201800577
- ISSN
- 2195-1071
- Abstract
- Oxidation of aniline provides useful organic nanostructures with a wide variety of particle morphologies and properties. Accordingly, in the present study, novel luminescent organic nanorods (ONs) are synthesized through one-step air oxidation of para-substituted anilines without any shape-guiding surfactants. These ONs present highly crystalline rod-like structures due to the ortho-coupling reaction of aniline and pi-pi interactions between the phenazine-like structures. Using photoluminescence spectroscopy, absorption spectroscopy, time-correlated single photon counting, and time-dependent density functional theory calculation, it is revealed that the phenazine-like structures in the ONs are largely responsible for their bright, photostable, deep-red luminescence with absolute quantum efficiency up to 46%. Finally, the potential application of ONs as a freestanding color filter for deep-red-light-emitting devices that could be used for color pixels of future displays is demonstrated. The findings of this study provide a new strategy for the preparation of luminescent organic nanomaterials, and show their potential for optoelectronic applications.
- Files in This Item
-
Go to Link
- Appears in
Collections - 공과대학 > 화공생명공학부 > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.