Solubility-Driven Thin Film Structures of Regioregular Poly(3-hexyl thiophene) using Volatile Solvents

Journal Article · Mon Dec 31 23:00:00 EST 2007 · Applied Physics Letters

OSTI ID:959627

Yang, H; LeFevre, S; Bao, Z; Ryu, C

Using atomic force microscopy and grazing-incidence x-ray diffraction, the authors found that the use of volatile CH2Cl2 not only offers an advantage in minimizing regioregular poly(3-hexyl thiophene) (RR P3HT) film deposition time, but also directs the desirable parallel orientation of p-p stacking planes of RR P3HT with respect to solid substrates, for both spin and drop castings. The substrate temperature effects have been investigated to support claims that the substrate-induced crystallization of RR P3HT preseeds the parallel oriented crystals prior to spin casting, when the warm CH2Cl2 solution is loaded on a 'cold' substrate held at room temperature.

• Research Organization: Brookhaven National Laboratory (BNL) National Synchrotron Light Source
• Sponsoring Organization: Doe - Office Of Science
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 959627
• Report Number(s): BNL--82613-2009-JA
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Vol. 90; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ATOMIC FORCE MICROSCOPY
CASTING
CASTINGS
CRYSTALLIZATION
DEPOSITION
ORIENTATION
SOLVENTS
SPIN
SUBSTRATES
TEMPERATURE DEPENDENCE
THIN FILMS
THIOPHENE
X-RAY DIFFRACTION
national synchrotron light source