Thin Film Microstructure of a Solution Processable Pyrene-Based Organic Semiconductor

Journal Article · Tue Jan 01 04:00:00 EST 2008 · Chemistry of Materials

DOI:https://doi.org/10.1021/cm702802w· OSTI ID:959643

Lucas, L; DeLongchamp, D; Richter, L; Kline, R; Fischer, D; Kaafarani, B; Jabbour, G

Semiconducting 6,7,15,16-tetrakis(dodecylthio)quinoxalino[2',3':9,10]phenanthro[4,5-abc]phenazine (TQPP-12) has been synthesized as a candidate solution-processable semiconductor for organic electronics applications. We characterize the microstructure of TQPP-12 in films using a combination of polarized photon absorption spectroscopies (X-ray, vis, and infrared), X-ray diffraction, and scanning probe techniques. This characterization strategy allowed for the determination of molecular orientation and packing style within thin films of this complex molecule. The TQPP-12 molecules are arranged within layers, and the aromatic cores are separated from the alkane side chains. Both the core long axes and side chains are highly tilted with respect to surface normal, and the conjugated planes of the core are cofacially packed.

• Research Organization: Brookhaven National Laboratory (BNL) National Synchrotron Light Source
• Sponsoring Organization: Doe - Office Of Science
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 959643
• Report Number(s): BNL--82629-2009-JA
• Journal Information: Chemistry of Materials, Journal Name: Chemistry of Materials Journal Issue: 18 Vol. 20; ISSN CMATEX; ISSN 0897-4756
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ABSORPTION
ALKANES
AROMATICS
CHAINS
MICROSTRUCTURE
ORGANIC SEMICONDUCTORS
ORIENTATION
PHOTONS
THIN FILMS
X-RAY DIFFRACTION
national synchrotron light source