Garrett Fregoso

ORCID: 0000-0003-4410-6045
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About
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Research Areas
  • X-ray Diffraction in Crystallography
  • Crystallization and Solubility Studies
  • Luminescence and Fluorescent Materials
  • Perovskite Materials and Applications
  • Quantum Dots Synthesis And Properties
  • 2D Materials and Applications
  • Organic Electronics and Photovoltaics
  • Molecular Junctions and Nanostructures
  • Photochromic and Fluorescence Chemistry
  • Photoreceptor and optogenetics research
  • Organic Light-Emitting Diodes Research

University of Kentucky
2022-2024

Blends comprising organic semiconductors and inorganic quantum dots (QDs) are relevant for many optoelectronic applications devices. However, the individual components in organic-QD blends have a strong tendency to aggregate phase-separate during film processing, compromising both their structural electronic properties. Here, we demonstrate QD surface engineering approach using electronically active, highly soluble semiconductor ligands that matched host material achieve well-dispersed...

10.1021/jacs.4c00125 article EN cc-by Journal of the American Chemical Society 2024-03-08

When considering the optimal molecular packing to realize charge multiplication in organic photovoltaic materials, subtle changes intermolecular transfer (CT) coupling can strongly modulate singlet fission. To understand why certain morphologies are more conducive by triplet pair (TT) formation, we measure diffraction-limited transient absorption (TA) response from four single-crystal functionalized derivatives of fluorinated anthradithiophene: diF R-ADT (R = TES, TSBS, TDMS, TBDMS). TES-ADT...

10.1021/acs.jpcc.1c10977 article EN The Journal of Physical Chemistry C 2022-02-28

Halogen bonding is required in silylethyne-functionalized asymmetrical chromophores to yield crystal packing suitable for efficient transistors.

10.1039/d2tc02977d article EN Journal of Materials Chemistry C 2022-01-01

Ligand Directed Self-Assembly of Bulk Organic-Semiconductor/Quantum-Dot Blend Films: Towards Efficient Triplet Exciton-Photon Interconversion in the Solid StateVictor Gray a, b, Daniel Toolan c, d, Simon Dowland e, Jesse Allardice Michael Weir f, Zhilong Zhang James Xiao Anastasiia Klimash h, Jurjen Winkel Emma Holland g, Garrett Fregoso John Anthony Hugo Bronstein Richard Friend Ryan Jones i, Neil Greenham Akshay Rao ba Department Chemistry—Ångström Laboratory, Uppsala University, SE 751 21...

10.29363/nanoge.matsus.2024.044 article EN 2023-12-18
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