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Highly efficient and stable solid-state luminescent nanohybrids: Precise architecture and enhancement mechanism

Published online by Cambridge University Press:  08 April 2013

Ya Kun Zhu ,
Shan Yi Guang ,
Xin Yan Su ,
Hong Yao Xu  and
Xiang Yang Liu
Ya Kun Zhu
Affiliation:
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials & College of Material Science and Engineering, Donghua University, Shanghai 201620, China
Shan Yi Guang
Affiliation:
College of Chemistry and Chemical Engineering & Bioengineering, Donghua University, Shanghai 201620, China
Xin Yan Su
Affiliation:
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials & College of Material Science and Engineering, Donghua University, Shanghai 201620, China; and College of Materials Science and Engineering, Shanghai University, Shanghai 201800, People’s Republic of China
Hong Yao Xu*
Affiliation:
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials & College of Material Science and Engineering, Donghua University, Shanghai 201620, China; and College of Materials Science and Engineering, Shanghai University, Shanghai 201800, People’s Republic of China
Xiang Yang Liu
Affiliation:
The Department of Physics, National University of Singapore, Singapore 1175542
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

The organic light-emitting (OLE) materials have attracted great interest due to their potential applications in sensors, biodetectors and OLE devices. However, highly efficient emission from organic solids is still a great challenge because of the aggregation-caused quenching effect. In this article, a three-dimensional (3D) organic-inorganic hybrid nanoparticle, based on polyhedral oligomeric silsesquioxane (POSS), was precisely fabricated via click chemistry with high yield, and its structure was characterized by Fourier transform infrared spectroscopy, 1H, and 29Si nuclear magnetic resonance spectroscopies, and Matrix-Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry, respectively. The resultant 3D organic-inorganic nanohybrid showed significantly enhanced emission in solid film (Φfilm 80%) with a slight red-shift as compared with its organic counterpart, (Φfilm 14%), which exhibits a large red-shift in solid film, due to the deaggregation effect of POSS. Simultaneously, the resultant nanohybrid also exhibited good film formability, excellent spectrum and thermal stability (>250 °C) due to the introduction of POSS.

Keywords

luminescencenanoscaleoptical properties
Type
Articles
Information
Journal of Materials Research , Volume 28 , Issue 8 , 28 April 2013 , pp. 1061 - 1069
Copyright
Copyright © Materials Research Society 2013

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