Recent News

5/2019 - We welcome Dr. Wathsala Waduge to the lab

12/2018 - Jonny's paper accepted in Surf. Sci.

10/2018- We welcome Dr. Feifei Li to the lab

10/2018 - Jonny takes a position at Tate and Lyle

6/2018 - Patent on organic semiconductors issued

6/2018 - Greg takes a position at ASM

Professor Jacob W. Ciszek

Associate Professor of Chemistry

Loyola University Chicago
Flanner Hall 122
1032 West Sheridan Road
Chicago, IL, 60660


Academic Training

Research Interests

The Ciszek group desires to understand the fundamental chemical reactivity at the surface of optoelectronically relevant substrates. Modern electronics, especially in lighting applications, have transitioned from inorganic materials to organic. Yet despite the fact that the metal-on-organic contact is crucial to device performance, no chemistry has been developed to optimize the interface. Our group develops reactions to form “monolayers” to alleviate flaws such as poor adhesion and injection barriers that exist in top-contact organic semiconductor devices.

Specifically our group studies the reactions at the surface of organic molecular crystals with vapor dosed adsorbates. From a fundamental standpoint, these reactions are fascinating as geometric considerations (based off molecular orientation in the crystal) appear to be the primary determinant of reactivity and isomer selectivity. Electronic effects appear muted at best. We have been developing composite mechanisms which examine how factors such as the intercalation pathways for adsorbates, the highly anisotropic nature of reaction loci, the relatively weak intermolecular forces within the molecular crystal, and the material’s low surface energies impact reactivity. Fundamental studies are then applied to generate altered surfaces which are then tested for improved interactions with metal top contacts.

At its heart, the group is a blend of surface science, organic chemistry, materials science, and device engineering. Our primary focus is on the surface science, where most of the ground breaking science occurs. Through a combination of MALDI, XPS, PMIRRAS, UV-vis, AFM, x-ray crystallography, and SEM we tease out the chemical changes within a surface for improved device behavior.

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Selected Publications

Deye, G. J.; Vicente, J. R.; Chen, J.; Ciszek, J. W. “Influence of Defects on the Reactivity of Organic Surfaces” The Journal of Physical Chemistry C 2018, 27, 15582. journal link

Deye, G. J.; Vicente, J. R.; Dalke, S. M.; Piranej, S.; Chen, J.; Ciszek, J. W. “The Role of Thermal Activation and Molecular Structure on the Reaction of Molecular Surfaces” Langmuir 2017, 33, 8140. journal link

Hopwood, J. P.; Ciszek, J. W. “Solid state and surface effects in thin-film molecular switches” Photochem. Photobiol. Sci. 2017, 16, 1095. journal link

Piranej, S.; Turner, D. A.; Dalke, S. M.; Park, H.; Qualizza, B. A.; Vicente, J.; Chen, J.; Ciszek, J. W. “Tunable interfaces on tetracene and pentacene thin-films via monolayers” CrystEngComm. 2016, 18, 6062. open access .pdf SI

Qualizza, B. A.; Prasad, S.; Chiarelli, M. P.; Ciszek, J. W. “Functionalization of organic semiconductor crystals via the Diels–Alder reaction” Chem. Commun. 2013, 49, 4495. open access .pdf SI

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Awards and Honors

Recent Invited Talks

Extended Biography

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