TY - JOUR
T1 - Effect of solution aging on morphology and electrical characteristics of regioregular P3HT FETs fabricated by spin coating and spray coating
AU - Bielecka, U.
AU - Lutsyk, P.
AU - Janus, K.
AU - Sworakowski, J.
AU - Bartkowiak, W.
PY - 2011/11/1
Y1 - 2011/11/1
N2 - The paper reports on a comparative study of poly(3-hexylthiophene) (P3HT) films as well as P3HT organic field effect transistors (OFETs) fabricated by the spin coating and spray coating techniques, using fresh and aged (for 2 months) chloroform solutions. The films obtained from aged solutions contain nanostructured fibers of the polymer. The presence of nanofibers in P3HT thin films affects the performance of the OFETs: charge carrier mobilities in the samples deposited from the aged solutions appeared over one order of magnitude higher than those fabricated using fresh solutions. Particularly high mobilities, exceeding 10−2 cm2 V−1 s−1, were found in spin coated samples deposited from aged solutions. Additionally, the latter samples exhibit a certain degree of anisotropy, associated with the action of centrifugal force during the deposition.
AB - The paper reports on a comparative study of poly(3-hexylthiophene) (P3HT) films as well as P3HT organic field effect transistors (OFETs) fabricated by the spin coating and spray coating techniques, using fresh and aged (for 2 months) chloroform solutions. The films obtained from aged solutions contain nanostructured fibers of the polymer. The presence of nanofibers in P3HT thin films affects the performance of the OFETs: charge carrier mobilities in the samples deposited from the aged solutions appeared over one order of magnitude higher than those fabricated using fresh solutions. Particularly high mobilities, exceeding 10−2 cm2 V−1 s−1, were found in spin coated samples deposited from aged solutions. Additionally, the latter samples exhibit a certain degree of anisotropy, associated with the action of centrifugal force during the deposition.
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-80051623616&partnerID=MN8TOARS
UR - https://www.sciencedirect.com/science/article/pii/S1566119911002497?via%3Dihub
U2 - 10.1016/j.orgel.2011.06.027
DO - 10.1016/j.orgel.2011.06.027
M3 - Article
VL - 12
SP - 1768
EP - 1776
JO - Organic Electronics
JF - Organic Electronics
IS - 11
ER -