A
Ashwin Narayanan
Researcher at Northwestern University
Publications - 9
Citations - 404
Ashwin Narayanan is an academic researcher from Northwestern University. The author has contributed to research in topics: Supramolecular chemistry & Polymer. The author has an hindex of 7, co-authored 8 publications receiving 257 citations.
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Journal ArticleDOI
Tunable exciton binding energy in 2D hybrid layered perovskites through donor–acceptor interactions within the organic layer
James V. Passarelli,Catherine M. Mauck,Catherine M. Mauck,Samuel W. Winslow,Collin F. Perkinson,Jacob C. Bard,Hiroaki Sai,Kristopher W. Williams,Ashwin Narayanan,Daniel J. Fairfield,Mark P. Hendricks,William A. Tisdale,Samuel I. Stupp +12 more
TL;DR: Doping two-dimensional naphthalene-based lead halide perovskites with tetrachloro-1,2-benzoquinone has been shown to introduce donor–acceptor interactions within the organic network, without disrupting the inorganic sublattice.
Journal ArticleDOI
Lock-Arm Supramolecular Ordering: A Molecular Construction Set for Cocrystallizing Organic Charge Transfer Complexes
Anthea K. Blackburn,Andrew C.-H. Sue,Alexander K. Shveyd,Dennis Cao,Alok S. Tayi,Ashwin Narayanan,Brian S. Rolczynski,Jodi M. Szarko,Ozgur A. Bozdemir,Rie Wakabayashi,Jessica A. Lehrman,Bart Kahr,Lin X. Chen,Majed S. Nassar,Samuel I. Stupp,J. Fraser Stoddart +15 more
TL;DR: The research reported here introduces an innovative design, termed LASO-lock-arm supramolecular ordering-in the form of a modular approach for the development of responsive organic cocrystals, which relies on the use of aromatic electronic donor and acceptor building blocks, carrying complementary rigid and flexible arms, capable of forming hydrogen bonds to amplify the cocrystallization processes.
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Crystal-Phase Transitions and Photocatalysis in Supramolecular Scaffolds.
Roman V. Kazantsev,Adam J. Dannenhoffer,Adam S. Weingarten,Brian T. Phelan,Boris Harutyunyan,Taner Aytun,Ashwin Narayanan,Daniel J. Fairfield,Job Boekhoven,Job Boekhoven,Hiroaki Sai,Andrew Senesi,Pascual I. O’Dogherty,Liam C. Palmer,Michael J. Bedzyk,Michael R. Wasielewski,Samuel I. Stupp +16 more
TL;DR: A thermally driven crystalline order transition in the landscape of supramolecular nanostructures formed by charged chromophore amphiphiles in salt-containing aqueous solutions is reported on.
Journal ArticleDOI
Structure and chemical stability in perovskite–polymer hybrid photovoltaic materials
Daniel J. Fairfield,Hiroaki Sai,Ashwin Narayanan,James V. Passarelli,Michelle Chen,Joseph Palasz,Liam C. Palmer,Michael R. Wasielewski,Samuel I. Stupp +8 more
TL;DR: In this article, structural and spectroscopic analysis in a number of perovskite-polymer hybrid materials and compare their stability was performed, showing that polymers tend to suppress the formation of a hydrate crystal phase that accelerates the degradation reaction.
Journal ArticleDOI
Semiconducting single crystals comprising segregated arrays of complexes of C60.
Jonathan C. Barnes,Edward J. Dale,Aleksandrs Prokofjevs,Ashwin Narayanan,Ian C. Gibbs-Hall,Michal Juríček,Michal Juríček,Charlotte L. Stern,Amy A. Sarjeant,Youssry Y. Botros,Youssry Y. Botros,Samuel I. Stupp,J. Fraser Stoddart +12 more
TL;DR: An extended viologen-based cyclophane—ExBox2(4+)—has been employed as a molecular receptor which, not only binds C60 one-on-one, but also results in the columnar self-assembly of the 1:1 inclusion complexes under ambient conditions.