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Title: Correlation of solid-state order to optoelectronic behavior in heterocyclic oligomers
A longstanding challenge in the field of optoelectronic materials, the effects of solid-state arrangement and morphology are still a prominent factor associated with small-molecule and polymer-based device performance. Here, mixed heterocyclic aromatic oligomers containing thiophene, furan and pyrazine are prepared alongside their methylated congeners. Their solution and solid-phase properties were studied via spectroscopic, electrochemical and single-crystal X-ray diffraction (XRD) analysis. Comparative analysis between solid-state packing arrangements and photophysical properties revealed optical band gaps as low as 1.7 eV with Stokes-shifts up to 130 nm and quantum yields of 12%. Results of the study aid in further understanding the effects of molecular and solid-state arrangements that give rise to unique optical and photophysical properties critical to enhancing optoelectronic behavior.  more » « less
Award ID(s):
1652094 1757220
NSF-PAR ID:
10345438
Author(s) / Creator(s):
; ; ; ; ; ; ; ; ;
Date Published:
Journal Name:
CrystEngComm
Volume:
24
Issue:
25
ISSN:
1466-8033
Page Range / eLocation ID:
4564 to 4572
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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