Journal article
Self-assembled hollow nanospheres strongly enhance photoluminescence
Journal of the American Chemical Society, Vol.133(29), pp.11022-11025
07/27/2011
Handle:
https://hdl.handle.net/2376/112086
PMID: 21699223
Abstract
We report that two molecular building blocks differ only by two protons, yet they form totally different nanostructures. The protonated one self-organized into hollow nanospheres (~200 nm), whereas the one without the protons self-assembled into rectangular plates. Consequently, the geometrically defined nanoassemblies exhibit radically different properties. As self-assembly directing units, protons impart ion-pairing and hydrogen-bonding probabilities. The plate-forming nanosystem fluoresces weakly, probably due to energy transfer among chromophores (Φ < 0.2), but the nanospheres emit strong yellow fluorescence (Φ ≈ 0.58-0.85).
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Details
- Title
- Self-assembled hollow nanospheres strongly enhance photoluminescence
- Creators
- Damei Ke - Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. ChinaChuanlang ZhanShuangping XuXunlei DingAidong PengJin SunShenggui HeAlexander D Q LiJiannian Yao
- Publication Details
- Journal of the American Chemical Society, Vol.133(29), pp.11022-11025
- Academic Unit
- Chemistry, Department of
- Publisher
- United States
- Identifiers
- 99900547654601842
- Language
- English
- Resource Type
- Journal article