Channel Length Modulation in a Polystyrene Insulated Organic Field Effect Transistor Using PEDOT: PSS Composite Electrode

Yıl 2018, Cilt: 22 Sayı: 6, 1493 - 1499, 01.12.2018

Ahmet Demir

https://doi.org/10.16984/saufenbilder.343272

Öz

The Organic Field Effect
Transistor (OFET) with channel length modulation was fabricated by spin coating
method using a Poly(3-hexylthiophene) (P3HT) and the Polystyrene (PS) insulator
on a prepatterned as source-drain Indium thin oxide (ITO) substrate. The
poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) was used
as  gate electrode. So, the structure of
OFET device is obtained as ITO/P3HT/PS/PEDOT:PSS. The ITO/PS/PEDOT:PSS
structure was prepared using same method for capacitance measurements of a
polymer insulator. Electrical characterization of OFET devices were held in
total darkness and in air ambient for the purpose of achieving output and
transfer current-voltage (I-V)
characteristics. The main parameters such as the threshold voltage (V_Th), field effect mobility (m_FET)
and current on/off ratio (I_on/off)
of the OFET devices were extracted from capacitance-frequency (C-f) plot of the ITO/PS/PEDOT:PSS
structure.  It was found that fabricated
PS-OFETs exhibit good device performance such as low V_Th, remarkable mobility, and  I_on/off
values.

Anahtar Kelimeler

P3HT, Polymer gate electrode, Transparent OFETs, Insulators, PEDOT:PSS, Polystyrene, P3HT

PEDOT: PSS Kompozit Elektrot Kullanarak Polistiren Yalıtkanlı Organik Alan Etkili Transistörde Kanal Uzunluğu Modülasyonu

Öz

Kanal uzunluğu modülasyonlu
Organik Alan Etkili Transistör (OFET), önceden oluşturulmuş indiyum kalay
oksitli (ITO) kaynak-savak alt-tabaka üzerinde Poly(3-hexylthiophene) (P3HT) ve
Polystyrene (PS) yalıtkan kullanarak spin kaplama yöntemi ile üretildi. Kapı Elektrodu olarak 
poly(3,4-ethylenedioxythiophene) polystyrene sulfonate
(PEDOT:PSS) kullanılmıştır.
Böylece, OFET cihazının yapısı ITO/P3HT/PS/ PEDOT:PSS olarak elde edilmiştir.
ITO/PS/PEDOT:PSS yapısı polimer yalıtkanının kapasitans ölçümleri için aynı
yöntem kullanılarak hazırlanmıştır. OFET cihazlarının elektriksel
karakterizasyonu çıkış ve transfer akım voltaj (I-V) karakteristikleri elde
etmek amacıyla tam karanlıkta ve hava ortamında yapılmıştır. OFET cihazlarının
eşik voltajı (V_Th), alan etkili mobilite (m_FET) ve akım
açma/kapama oranı (I_on/off) gibi ana parametreler, ITO/PS/PEDOT:PSS yapısının
kapasitans frekansı (C-f) ölçümlerinden elde edildi. Üretilen PS-OFET'lerin düşük
V_Th, kaydadeğer mobilite ve akım açık/kapama değerleri gibi
iyi cihaz performansı sergilediği gözlenmiştir.

Anahtar Kelimeler

Polimer kapı elektrodu, Şeffaf OFETler, Yalıtkanlar, PEDOT: PSS, Polistiren, P3HT

Kaynakça

• E. Scavetta, A.G. Solito, M, Demelas, P. Cosseddu, A. Bonfiglio, “Electrochemical characterization of self assembled monolayers on flexible electrodes", Electrochim. Acta, vol.65 pp. 159, 2012.
• H.T. Nguyen, B.C. Dong, N.H. Nguyen, “A novel conducting amphiphilic diblock copolymer containing regioregular poly(3-hexylthiophene)”, Macromol. Res,.vol.22 pp. 85, 2014.
• P. Dataa, P. Pander, M. Lapkowski, A. Swist, J. Soloduchoc, R.R. Reghud, J.V. Grazulevicius, “Unusual properties of electropolymerized 2,7- and 3,6- carbazole derivatives”, Electrochim. Acta, vol. 128 pp. 430, 2014.
• C. Solis, E. Baigorria, M.E. Milanesio, G. Morales, E.N. Durantini, L. Otero, M. Gervaldo,“Electrochemical polymerization of EDOT modified Phthalocyanines and their applications as electrochromic materials with green coloration, and strong absorption in the Near-IR”, Electrochim. Acta, vol. 213 pp. 594, 2016.
• J. Sun, B. Zhang, H.E. Katz, Materials for Printable, “Transparent, and Low-Voltage Transistors”, Adv. Funct. Mater., vol. 21 pp. 29, 2011.
• R.A. Street, “Thin-Film Transistors”, Adv. Mater., vol. 21 pp. 2007, 2009.
• J.Y. Kwon, D.J. Lee, K.B. Kim, “Review paper: "Transparent amorphous oxide semiconductor thin film transistor”, Electron. Mater. Lett., vol. 7 pp. 1, 2011.
• S. Ju, L. Li, J. Liu, P.C Chen, Y.G Ha, F. Ishikawa, H. Chang, C. Zhou, A. Facchetti, D.B. Janes, T.J. Marks, “Transparent Active Matrix Organic Light-Emitting Diode Displays Driven by Nanowire Transistor Circuitry”, Nano Lett., vol. 8 pp. 997, 2008.
• Q. Cao, Z.T Zhu, M.G Lemaitre, M.G. Xia, M. Shim, J.A. Rogers, “Transparent flexible organic thin-film transistors that use printed single-walled carbon nanotube electrodes”, Appl. Phys. Lett., vol. 88 pp. 113511, 2006.
• W.H. Lee, J. Park, S.H Sim, S.B. Jo, K.S. Kim, B.H Hong, K. Cho, “Transparent Flexible Organic Transistors Based on Monolayer Graphene Electrodes on Plastic”, Adv. Mater., vol. 23 pp. 1752, 2011.
• Y, Yu, H, Wada, J.I. Inoue, S. Imaizumi, Y. Kounosu, K. Tsuboi, H. Matsumoto, M. Ashizawa, T. Mori, M. Minagawa, A. Tanioka, “Inkjet Printing of Graphene Nanoribbons for Organic Field-Effect Transistors”, Appl. Phys. Express, vol. 4 pp. 115101, 2011.
• H. Ohta, T. Kambayashi, K. Nomura, M. Hirano, K. Ishikawa, H. Takezoe, H. Hosono, Channel, “Transparent Organic Thin-Film Transistor with a Laterally Grown Non-Planar Phthalocyanine Channel”, Adv. Mater., vol. 16 pp. 312 2004.
• D.J. Yun, S.W. Rhee, “Deposition of Al-doped ZnO thin-films with radio frequency magnetron sputtering for a source/drain electrode for pentacene thin-film transistor”, Thin Solid Films, vol. 517 pp. 4644, 2009.
• J.M. Choi, D.K. Hwang, J.H. Kim, S. Im, “Transparent thin-film transistors with pentacene channel, AlOxAlOx gate, and NiOxNiOx electrodes”, Appl. Phys. Lett., vol. 86 pp. 123505, 2005.
• S. Cho, K. Lee, J. Yuen, G. Wang, D. Moses, A.J. Heeger, M. Surin, R. Lazzaroni, “Thermal annealing-induced enhancement of the field-effect mobility of regioregular poly(3-hexylthiophene) films”, J. Appl. Phys., vol. 100 pp. 114503, 2006.
• L.A. Majewski, M. Grell, S.D. Ogier, J. Veres, “A novel gate insulator for flexible electronics”, Org. Electron., vol. 4 pp. 27, 2003.
• Z. Bao, Y. Feng, A. Dodabalapur, V.R. Raju, A.J. “Lovinger, High-Performance Plastic Transistors Fabricated by Printing Techniques”, Chem. Mater., pp. 9 pp. 1299, 1997.
• V. Dyakonov, I. Riedel, C. Deibel, J. Parisi, C.J. Brabec, N.S. Sariciftci, J.C. Hummelen, “Electronic Properties of Polymer-Fullerene Solar Cells”, Mat. Res. Soc. Symp. Proc. Vol. 665 pp. C7.1, 2001.
• W. Fix, A. Ullmann, J. Ficker, W. Clemens, “Fast polymer integrated circuits”, Appl. Phys. Lett. vol. 81 pp. 1735, 2002.
• J. Ficker, A. Ullmann, W. Fix, H. Rost, W. Clemens, “Stability of polythiophene-based transistors and circuits” J. Appl. Phys.” Vol. 94 pp. 2638, 2003.
• Y. Jang, D.H. Kim, Y.D. Park, J.H. Cho, M. Hwang, K. Cho, “Influence of the dielectric constant of a polyvinyl phenol insulator on the field-effect mobility of a pentacene-based thin-film transistor”, Appl. Phys. Lett., vol. 87 pp. 152105, 2005.
• S. Han, X. Zhuang, W. Shi, X. Yang, L. Li, J. Yu, “Poly(3-hexylthiophene)/polystyrene (P3HT/PS) blends based organic field-effect transistor ammonia gas sensor”, Sens. Actuators B, vol. 225 pp. 10, 2016.
• R.K. Goyal, P.A. Jagadale, U.P. Mulik, “Thermal, mechanical, and dielectric properties of polystyrene/expanded graphite nanocomposites”, J. Appl. Polym. Sci., vol. 111 pp. 2071, 2009.
• K. Chen, K. Harris, S. Vyazovkin, “Tacticity as a Factor Contributing to the Thermal Stability of Polystyrene”, Macromol. Chem. Phys., vol. 208 pp. 2525, 2007.
• C. Shin, “Filtration application from recycled expanded polystyrene”. J. Colloid Interface Sci., vol. 302 pp. 267, 2006.
• D. Aussawasathien, S. Sahasithiwat, L. Menbangpung, “Electrospun camphorsulfonic acid doped poly(o-toluidine)–polystyrene composite fibers: Chemical vapor sensing”, Synth. Met., vol. 158 pp. 259, 2008.
• J.Y. Lee, V. Kumar, X.W. Tang, D.J. Lee, “Mechanical and electrical behavior of rubber nanocomposites under static and cyclic strain”, Compos. Sci. Technol., vol. 142 pp. 1, 2017.
• G. Albrecht, S. Heuser, C. Keil, D. Schlettwein, “Strategy for preparation of transparent organic thin film transistors with PEDOT:PSS electrodes and a polymeric gate dielectric”, Mater. Sci. Semicond. Process., vol. 40 pp. 772, 2015.
• J.G. Tait, B.J. Worfolk, S.A. Maloney, T.C. Hauger, A.L. Elias, J.M. Buriak, K.D. Harris, “Spray coated high-conductivity PEDOT:PSS transparent electrodes for stretchable and mechanically-robust organic solar cells”, Sol. Energy Mater. Sol. Cells, vol. 110 pp. 98, 2013.
• Z. Chen, B. Cotterell, W. Wang, E. Guenther, S.J. Chua, “A mechanical assessment of flexible optoelectronic devices”, Thin Solid Films., vol. 394 pp. 201, 2001.
• J. Veres, S. Ogier, G. Lloyd, Gate “Insulators in Organic Field-Effect Transistors”, Chem. Mater., vol. 16 pp. 4543, 2004.
• T.W. Kelley, L.D. Boardman, T.D. Dunbar, D.V. Muyres, M.J. Pellerite, T.P. Smith, “High-Performance OTFTs Using Surface-Modified Alumina Dielectrics”, J. Phys. Chem. B, vol. 107 pp. 5877, 2003.
• P. Mittal, B. Kumar, Y.S. Negi, B.K. Kaushik, R.K. Singh, “Channel length variation effect on performance parameters of organic field effect transistors”, Microelectron. J., vol. 43 pp. 985, 2012.
• Y. Yan, L.B. Huang, Y. Zhou, S.T. Han, L. Zhou, J. Zhuang, Z.X. Xu, V.A.L. Roy, “Self-aligned, full solution process polymer field-effect transistor on flexible substrates”, Sci. Rep., vol. 5 pp. 15770, 2015.
• A. Demir, O. Köysal, “Investigation of photo-induced change of electro-optical performance in a liquid crystal-organic field effect transistor (LC-OFET”, Philos. Mag., vol. 96 pp. 2362, 2016.
• A. Demir, A. Atahan, S. Bağcı, M. Aslan, M.S Islam, “Organic/inorganic interfaced field-effect transistor properties with a novel organic semiconducting material”, Philos. Mag., vol. 96 pp. 274, 2016.
• L. Herlogsson, X. Crispin, N.D. Robinson, M. Sandberg, O.J Hagel, G. Gustafsson, M. Berggren, “Low-Voltage Polymer Field-Effect Transistors Gated via a Proton Conductor”, Adv. Mater., vol. 19 pp. 97, 2007.
• F Bordi1, C Cametti, R.H. Colby, “Dielectric spectroscopy and conductivity of polyelectrolyte solutions”, J. Phys.: Condens. Matter, vol. 16 pp. R1423 2004.
• Y. Sun, Y. Liu, D. Zhu, “Advances in organic field-effect transistors”, J. Mater. Chem., vol. 15 pp. 53, 2005.
• B.C. Shekar, J. Lee, S.W. Rhee, “Organic thin film transistors: Materials, processes and devices”, Korean J. Chem. Eng., vol. 21 pp. 267, 2004.
• G. Xu, Z. Bao, J.T. Groves, “Langmuir−Blodgett Films of Regioregular Poly(3-hexylthiophene) as Field-Effect Transistors”, Langmuir, vol. 16 pp. 1834, 2000.
• A. Demir, S. Bağci, S.E. San, Z. Doğruyol, “Pentacene-Based Organic Thin Film Transistor With SiO2 Gate Dielectric”, Surf. Rev. Lett., vol. 22 pp. 1550038, 2015.