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Photo of Ayitou, A. Jean-Luc

A. Jean-Luc Ayitou

Assistant Professor

Chemistry

Contact

Address:

5417-B SES

Office Phone:

(312) 413-1377

Related Sites:

About Heading link

Research in the Ayitou Lab seeks to bridge knowledge gaps in the area of photo-energy materials and/or solar energy conversion with an emphasis on elucidating the structure-photophysics relationship in novel organic light-harvesting systems (Fig. 1).

 

The Ayitou group studies non-classical aromatic triplet chromophores.

Chromophore interactions in the solid-state and/or photo-materials

Using advanced spectroscopy tools, our lab aims to investigate energy/exciton transfer in organic solid or organic-semiconductor materials. Photo-excitation of this class of novel (hybrid) materials, which are developed in our lab, would create excitons that can be exploited to perform catalysis and other processes.

On-demand” Photo-uncaging

Other areas of interest include porous polymeric photo-materials, which we are developing. These materials could be used in a synergistic/controlled release of valuable chemicals, signaling agents or other therapeutics. Using the established photochemical paradigms of the molecular building blocks in the porous materials, we will investigate how molecular interactions will dictate the “global” photochemistry in the macroscopic materials.

Outreach and Science-Community Advocate

In our effort to promote diversity and a better/broader understanding of socio-cultural relevance to the Chemical Sciences, the Ayitou lab has initiated the following outreach program: VISCUS = Vivifying Scientific Curiosity for Underrepresented Undergraduate (URM) Students. Through this program, URM students are trained to use advanced spectroscopy tools to investigate common photochemical processes, which one might encounter in Nature.

 

 

Selected Publications

1) Young Ju Yun, Gary P. Wiederrecht, David J. Gosztola, Benjamin T. Diroll and Jean-Luc Ayitou*, Triplet Photodynamic and Luminescence Upconversion in Donor-Acceptor Dyads with Slip-0stacked vs. Co-facial Arrangement, J. Mat. Chem. C 2022, (in press)

2) Manoj K. Manna, Young Ju Yun, Nareshbabu Kamatham, Barry Pemberton, Gary P. Wiederrecht, David J. Gosztola, Gonzalo Jiménez-Osés and Jean-Luc Ayitou*, Synthesis and Photophysics of Triplet Donor–Acceptor Dyads: ortho– vs. para–Phenyl Positional Effect on Intramolecular Triplet Energy Flow, J. Photochem. Photobio. A 2022, (in press)

3) Samjhana Maharjan, Young Ju Yun, Veronica A. Okello, Gary P. Wiederrecht, David J. Gosztola, and Jean-Luc Ayitou*, Photometric Sensing of Heavy Metal Pollutants using a Naphthoquino-bis-thioamide Dye: Photophysics of the Metal Organic Complexes, J. Photochem. Photobio. A 2022, 424, 113648, DOI: 10.1016/j.jphotochem.2021.113648

4) Young Ju Yun, Jussi Isokuortti, Timo Laaksonen, Nikita Durandin and Jean-Luc Ayitou*, Triplet-triplet Annihilation Photon-Upconversion in Hydrophilic Media with Biorelevant Cholesteryl Triplet Energy Acceptors, J. Photochem. Photobio. A 2021, DOI: 10.1016/j.jphotochem.2021.113412

5) Jayla Morgan, Young Ju Yun and Jean-Luc Ayitou*, Estimation of Singlet Oxygen Quantum Yield Using Novel Green-Absorbing Baird-type Aromatic Photosensitizers, J. Photochem. Photobio. 2021, DOI: 10.1111/php.13483

6) Young Ju Yun, Nareshbabu Kamatham, Manoj K. Manna, Jingbai Li, Gary P. Wiederrecht, David J. Gosztola, Andrey Yu. Rogachev, and Jean-Luc Ayitou*, Interplay Between Energy & Charge Transfers in a Polyaromatic Triplet Donor–Acceptor Dyad, J. Phys. Chem. C 2020, 12205–12216. (link)

7) Nareshbabu Kamatham, Jingbai Li, Siamak Shokri, Guang Yang, Andrey Yu. Rogachev and A. Jean-Luc Ayitou*, Quinoidization of Polyacene Diimides: Photophysics, Aromaticity, and Stability of the Novel Quinoidal Acenes, Eur. J. Org. Chem., 2020, 917–922. (link) (Cover Page)

8) M. K. Manna, S. Shokri, G. P. Wiederrecht, D. J. Gosztola and A. J.-L. Ayitou*, New Perspectives for Triplet-Triplet Annihilation Photo Upconversion Using All-Organic Donors and Acceptors Chromophores; Chem. Commun.201854, 5809–5818. (link)

9) S. Shokri, J. Li, G. P. Wiederrecht, D. J. Gosztola, A. Ugrinov, S. Jockush, A. Yu Rogachev and A. J.-L. Ayitou*, A Naphtho-p-quinodimethane Exhibiting Baird’s Anti-Aromaticity, Broken Symmetry and Attractive Photoluminescence. J. Org. Chem., 2017, 82, 10167–10173. (link)

10) S. Shokri, G. P. Wiederrecht, D. J. Gosztola and A. J.-L. Ayitou*, Photon Upconversion Using Baird-Type Anti-Aromatic Quinoidal Naphthalene Derivative as a Sensitizer, J. Phys. Chem. C, 2017, 121, 23377–23382. (link)

Education

• B.S., North Dakota State University (advisor: Sivaguru Jayaraman), 2008
• Ph.D., North Dakota State University (advisor: Sivaguru Jayaraman), 2013
• Postdoctoral Fellow, University of California Los Angeles (advisors: Miguel Garcia-Garibay), 20013-2016.