Directional Charge Separation in Isolated Organic Semiconductor Crystalline Nanowires

Technical Report · Wed Mar 01 04:00:00 EST 2017

DOI:https://doi.org/10.2172/1429404· OSTI ID:1429404

Barnes, Michael D. ^[1]

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1. Univ. of Massachusetts, Amherst, MA (United States); UMass Amherst

This research program was focused on development of new material platforms and analytical spectroscopy methodologies for probing inter- and intra-molecular electronic processes in conjugated nanomaterials. A detailed understanding of the connection between molecular architecture, supramolecular/polymer assembly, and optoelectronic function is critical to the improvement in polymer-based optoelectronics, yet many questions remain outstanding as to how to ‘program’ specific inter-molecular couplings via molecular structure in order to achieve desired device performance (photostability, chargeseparation and charge-transport efficiency). We combine single-molecule spectroscopy tools and new synthetic methodologies to probe intra- and inter-molecular coupling in small-molecule, oligomeric complex structures and crystalline nanoscale supramolecular assemblies in order to understand in detail, the structure-excitonic property relations and elucidate molecular design rules (distances, angles, etc) for improved performance in organic optoelectronics.

• Research Organization: Univ. of Massachusetts, Amherst, MA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Chemical Sciences, Geosciences & Biosciences Division
• DOE Contract Number: FG02-05ER15695
• OSTI ID: 1429404
• Report Number(s): Natue Communications DOI: 10.1038/ ncomms10629
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
directional charge separation
nanowire
organic semiconductor