TY - JOUR
T1 - Feasibility test of spray-coating method for patterning of vapor phase-polymerized poly(3,4-ethylenedioxythiophene) thin film
AU - Ma, Feng
AU - Boo, Jin Hyo
AU - Sohn, Honglae
AU - Kim, Sungsoo
PY - 2014/9
Y1 - 2014/9
N2 - In this study, spray-coating has been opted to prepare patterned Poly(3,4-ethylenedioxythiophene) (PEDOT) electrodes for an organic thin film transistor (OTFT). The conducting polymer was grown via the vapor phase polymerization (VPP) method. The film quality of VPP-PEDOT critically relies on the uniformity of oxidant film selectively patterned on a thermally oxidized Si-wafer surface prior to the polymerization. Therefore, to improve the uniformity of the oxidant film, this study tried to discover best conditions of spray-coating. Several different temperatures of Si-wafer substrate, distances from nozzle to wafer, and spray times were tested during the spray coating process. Then, sprayed oxidant films and vapor phase-polymerized PEDOT patterns were characterized by several thin film analyzing tools such as FE-SEM and optical microscope. The characterization found that the best conditions of spray coating are room temperature, 18 cm, and 50 s of substrate temperature, spray distance, and time, respectively.
AB - In this study, spray-coating has been opted to prepare patterned Poly(3,4-ethylenedioxythiophene) (PEDOT) electrodes for an organic thin film transistor (OTFT). The conducting polymer was grown via the vapor phase polymerization (VPP) method. The film quality of VPP-PEDOT critically relies on the uniformity of oxidant film selectively patterned on a thermally oxidized Si-wafer surface prior to the polymerization. Therefore, to improve the uniformity of the oxidant film, this study tried to discover best conditions of spray-coating. Several different temperatures of Si-wafer substrate, distances from nozzle to wafer, and spray times were tested during the spray coating process. Then, sprayed oxidant films and vapor phase-polymerized PEDOT patterns were characterized by several thin film analyzing tools such as FE-SEM and optical microscope. The characterization found that the best conditions of spray coating are room temperature, 18 cm, and 50 s of substrate temperature, spray distance, and time, respectively.
KW - A. Organic electrode
KW - A. Poly (3,4-ethylenedioxythiophene)
KW - A. Thin film
KW - B. Spray-coating
KW - B. Vapor phase polymerization
UR - https://www.scopus.com/pages/publications/84902494044
U2 - 10.1016/j.materresbull.2014.05.039
DO - 10.1016/j.materresbull.2014.05.039
M3 - Article
AN - SCOPUS:84902494044
SN - 0025-5408
VL - 57
SP - 197
EP - 202
JO - Materials Research Bulletin
JF - Materials Research Bulletin
ER -