Water soluble poly(1-vinyl-1,2,4-triazole) as novel dielectric layer for organic field effect transistors

ABBAS M., ÇAKMAK G., TEKİN N., Kara A., GÜNEY H. Y., Arici E., ...Daha Fazla

ORGANIC ELECTRONICS, cilt.12, sa.3, ss.497-503, 2011 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 12 Sayı: 3
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.orgel.2010.12.023
  • Dergi Adı: ORGANIC ELECTRONICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.497-503
  • Kocaeli Üniversitesi Adresli: Evet

Özet

Water soluble poly(1-vinyl-1,2,4-triazole) (PVT) as a novel dielectric layer for organic field effect transistor is studied. Dielectric spectroscopy characterization reveals it has low leakage current and rather high breakdown voltage. Both n-channel and p-channel organic field effect transistors are fabricated using pentacene and fullerene as active layers. Both devices show device performances with lack of hysteresis, very low threshold voltages and high on/off ratios. Excellent film formation property is utilized to make AlO(x) and thin PVT bilayer in order to decrease the operating voltage of the devices. All solution processed ambipolar device is fabricated with simple spin coating steps using poly(2-methoxy-5-(2-ethyl-hexyloxy)-1,4-phenylenevinylene) (MEH-PPV) end capped with polyhedral oligomeric silsesquioxanes (POSS) as active layer. Our investigations show that PVT can be a very promising dielectric for organic field effect transistors. (C) 2011 Elsevier B.V. All rights reserved.