Synthesis and characterization of boron azadipyrromethene single-wall carbon nanotube electron donor-acceptor conjugates

Flavin K, Lawrence K, Bartelmeß J, Tasior M, Navio C, Bittencourt C, O'Shea DF, Guldi DM, Giordani S (2011)

Publication Type: Journal article, Original article

Publication year: 2011

Journal

Acs Nano American Chemical Society

Original Authors: Flavin K., Lawrence K., Bartelmeß J., Tasior M., Navio C., Bittencourt C., O'Shea D.F., Guldi D.M., Giordani S.

Publisher: American Chemical Society

Book Volume: 5

Pages Range: 1198-1206

Journal Issue: 2

DOI: 10.1021/nn102831x

Abstract

The preparation of a novel donor-acceptor material, consisting of a red/near-infrared (NIR) absorbing boron azadipyrromethene donor covalently attached to a highly functionalized single-wall carbon nanotube (SWNT) acceptor, which bears great potential in the field of organic photovoltaics, has been demonstrated. Both purification and covalent functionalization of SWNTs have been demonstrated using a number of complementary characterization techniques, including atomic force microscopy, Raman, X-ray photoelectron spectroscopy (XPS), Fourier transform infrared, and NIR-photoluminescence spectroscopy, and a functionalization density of approximately 1 donor molecule per 100 SWNT atoms has been estimated by XPS. The redox behavior of the fluorophore has been investigated by electrochemistry and spectroelectrochemistry as well as by pulse radiolysis. The donor-acceptor properties of the material have been characterized by means of various spectroscopic techniques, such as UV-vis NIR absorption spectroscopy, steady-state and time-resolved fluorescence spectroscopy, and time-resolved transient absorption spectroscopy. Charge transfer from the photoexcited donor to the SWNT acceptor has been confirmed with a radical ion pair state lifetime of about 1.2 ns. © 2011 American Chemical Society.

Authors with CRIS profile

Jürgen Bartelmeß Graduiertenzentrum der FAU Dirk Michael Guldi Lehrstuhl für Physikalische Chemie I

Involved external institutions

Trinity College Dublin IE Ireland (IE) University College Dublin (UCD) IE Ireland (IE) University of Mons / Université de Mons BE Belgium (BE)

How to cite

APA:

Flavin, K., Lawrence, K., Bartelmeß, J., Tasior, M., Navio, C., Bittencourt, C.,... Giordani, S. (2011). Synthesis and characterization of boron azadipyrromethene single-wall carbon nanotube electron donor-acceptor conjugates. Acs Nano, 5(2), 1198-1206. https://doi.org/10.1021/nn102831x

MLA:

Flavin, Kevin, et al. "Synthesis and characterization of boron azadipyrromethene single-wall carbon nanotube electron donor-acceptor conjugates." Acs Nano 5.2 (2011): 1198-1206.

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