Mandal, Sadananda ; Bhattacharyya, Santanu ; Borovkov, Victor ; Patra, Amitava (2011) Porphyrin-based functional nanoparticles: Conformational and photophysical properties of bis-porphyrin and bis-porphyrin encapsulated polymer nanoparticles The Journal of Physical Chemistry C, 115 (49). pp. 24029-24036. ISSN 1932-7447
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Official URL: http://pubs.acs.org/doi/abs/10.1021/jp208819b?jour...
Related URL: http://dx.doi.org/10.1021/jp208819b
Abstract
We first demonstrate the porphyrin-based functional nanoparticles with syn-to-anti conformational switching from bis-(zinc octaethylporphyrin) [(ZnOEP)2] nanoparticles (NP) to (ZnOEP)2 encapsulated into the semiconducting poly(9-vinylcarbazole) (PVK) polymer NP. The molecular arrangement of (ZnOEP)2 during the formation of nanoparticles has been discussed based on atomic force microscopy (AFM) and other spectroscopic methods. It reveals that the porphyrin nanoparticles are formed by the interbisporphyrin π–π stacking that is resemble to a single (ZnOEP)2 molecule stabilized by the π–π interaction between the porphyrin moieties. Furthermore, an efficient excited energy transfer (96%) from the PVK host to the (ZnOEP)2 energy acceptor has been demonstrated that opens further prospects in designing new porphyrin-based functional nanoparticles for the application in effective light harvesting system.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 104744 |
| Deposited On: | 01 Dec 2017 11:11 |
| Last Modified: | 01 Dec 2017 11:11 |
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