Optical properties of MEH-PPV conjugated polymer covered by silica nanoshells

2006 ◽  
Vol 102 (6) ◽  
pp. 5620-5626 ◽  
Author(s):  
G. A. M. Sáfar ◽  
F. A. C. Oliveira ◽  
L. A. Cury ◽  
A. Righi ◽  
P. L. M. Barbosa ◽  
...  
Keyword(s):  
Optical Properties ◽  
Conjugated Polymer

Enhancement of optical properties of poly (9,9′-di-n-octylfluorenyl-2,7-diyl) in conjugated polymer/TiO2 nanocomposites

2014 ◽  
Vol 92 (9) ◽  
pp. 1021-1025 ◽  
Author(s):  
Bandar Ali Al-Asbahi ◽  
Mohammad Hafizuddin Haji Jumali
Keyword(s):  
Optical Properties ◽  
Conjugated Polymer ◽  
Emission Spectra ◽  
Treatment Temperature ◽  
Nanocomposite Films ◽  
Glass Substrates ◽  
Solution Blending ◽  
Heat Treated ◽  
Blending Method ◽  
Splitting Energy

The influence of colloidal TiO2 nanoparticle contents on the optical properties of poly (9,9′-di-n-octylfluorenyl-2,7-diyl) conjugated polymer (PFO) has been investigated. The solution blending method was used to prepare homogenous PFO/TiO2 nanocomposite. The nanocomposite films were prepared on glass substrates using the spin-coating technique. The films were divided into two groups, the first was left to dry at room temperature while the second was heat-treated at 120 °C for 1 h. Absorption and emission spectra showed that the PFO existed in α- and β-phases morphology having monomeric, excimeric, and double excimeric states. In addition, both spectra revealed that TiO2 contents and heat treatment temperature extended the conjugation length of PFO. Finally, emission spectra for both cases exhibited decreasing in the line width of zero-phonon emission spectra and increasing in the vibronic splitting energy, upon increment of the TiO2, led to a significant increase in π-electron delocalization and lower degree in chain disorder.

Electrical and optical properties of an alcohol soluble aminoalkyl-substituted cationic conjugated polymer

2008 ◽  
Vol 43 (8) ◽  
pp. 2818-2824 ◽  
Author(s):  
Lin Ke ◽  
Vijila Chellappan ◽  
Bin Liu ◽  
Zhen Xian Soh ◽  
Rina Hui Ting Soh ◽  
...  
Keyword(s):  
Optical Properties ◽  
Conjugated Polymer ◽  
Electrical And Optical Properties

Intramolecular charge-transfer emission from conjugated polymer nanoparticles: the terminal group effect on electronic and optical properties

2015 ◽  
Vol 6 (12) ◽  
pp. 2305-2311 ◽  
Author(s):  
Xiaofu Wu ◽  
Haibo Li ◽  
Yuxiang Xu ◽  
Hui Tong ◽  
Lixiang Wang
Keyword(s):  
Optical Properties ◽  
Charge Transfer ◽  
Conjugated Polymer ◽  
Intramolecular Charge Transfer ◽  
Terminal Group ◽  
Polymer Nanoparticles ◽  
Electronic And Optical Properties ◽  
The Core ◽  
Conjugated Polymer Nanoparticles ◽  
First Time

Efficient tuning of electronic and optical properties of conjugated polymer nanoparticles by intramolecular charge transfer between the core and the terminal groups is demonstrated for the first time.

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