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A new kind of indium-tin-oxide thin-film transistors made of P-doped SiO2 dielectrics in an in-plane-gate structure is fabricated at room temperature. Indium-tin-oxide (ITO) channel and ITO electrodes (gate, source, and drain) can be deposited simultaneously without precise photolithography and alignment process by using only one nickel shadow mask. So the thin film transistors (TFTs) have a lot of advantages, such as the simple device process、low cost etc. Such TFTs exhibit a good performance at an ultralow operation voltage of 1 V, a high field-effect mobility of 18.35 cm2/Vs , a small subthreshold swing of 82 mV/decade, and a large on-off ratio of 1.1×106, because of the huge electric-double-layer (EDL) capacitance (8 μF/cm2) between the interface of P-doped SiO2 dielectrics and ITO channel. So the TFTs are very promising for the application of low-power and portable electronic products and sensors in the future.
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Keywords:
- P-doped SiO2 dielectric /
- in-plane-gate thin-film transistors /
- electric-double-layer (EDL) /
- ultralow operation voltage
[1] Draghici M, Diaconescu D, Melnikov A, Wieck A D 2010 Phys. Status Solidi A 207 229
[2] Chung T H, Chen S H, Liao W H, Lin S Y 2010 IEEE Electron Device Lett. 31 1227
[3] Colinge J P, Lee C W, Afzalian A, Akhavan N D, Yan R, Ferain I, Razavi P, O'Neill B, Blake A, White M, Kelleher A M, McCarthy B, Murphy R 2010 Nat. Nanotechnol. 5 225
[4] Zhao K S, Xuan R J, Han X, Zhang G M 2012 Acta Phys. Sin. 61 197201 (in Chinese) [赵孔胜, 轩瑞杰, 韩笑, 张耕铭 2012 物理学报 61 197201]
[5] Jiang J, Sun J, Dou W, Zhou B, Wan Q 2011 Appl. Phys. Lett. 98 113507
[6] Raval H N, Tiwari S P, Navan R R, Mhaisalkar, Rao V R 2009 IEEE Electron Device Lett. 30 484
[7] Kim J B, Fuentes H C, Kippelen B 2008 Appl. Phys. Lett. 93 242111
[8] Wang G M, Moses D, Heeger A J 2004 J. Appl. Phys. 95 316
[9] Larsson O, Said E, Berggren M, Crispin X 2009 Adv. Funct. Mater. 19 3334
[10] Cho J H, Lee J, He Y, Kim B, Lodge P T, Frisbie C D 2008 Adv. Mater. 20 686
[11] Liu Y R, Chen W, Liao R 2010 Acta Phys. Sin. 59 8088 (in Chinese) [刘玉荣, 陈伟, 廖荣 2010 物理学报 59 8088]
[12] Sun J, Liu H X, Jiang J, Lu A X, Wan Q 2010 J. Mater. Chem. 20 8010
[13] Lu A X, Sun J, Jiang J, Wan Q 2009 Appl. Phys. Lett. 95 222905
[14] Jiang J, Sun J, Zhou B, Lu A X, Wan Q 2010 IEEE Electron Device Lett. 31 1263
[15] Jiang J, Dai M Z, Sun J, Zhou B, Lu A X, Wan Q 2011 Appl. Phys. Lett. 109 054501
[16] Jiang J, Sun J, Lu A X, Wan Q 2011 IEEE Electron Device Lett. 58 547
[17] Wee G, Larsson O, Srinviasan M, Bcrggren M, Crispin X, Mhaisalkar S 2010 Adv. Funct. Mater. 20 4344
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[1] Draghici M, Diaconescu D, Melnikov A, Wieck A D 2010 Phys. Status Solidi A 207 229
[2] Chung T H, Chen S H, Liao W H, Lin S Y 2010 IEEE Electron Device Lett. 31 1227
[3] Colinge J P, Lee C W, Afzalian A, Akhavan N D, Yan R, Ferain I, Razavi P, O'Neill B, Blake A, White M, Kelleher A M, McCarthy B, Murphy R 2010 Nat. Nanotechnol. 5 225
[4] Zhao K S, Xuan R J, Han X, Zhang G M 2012 Acta Phys. Sin. 61 197201 (in Chinese) [赵孔胜, 轩瑞杰, 韩笑, 张耕铭 2012 物理学报 61 197201]
[5] Jiang J, Sun J, Dou W, Zhou B, Wan Q 2011 Appl. Phys. Lett. 98 113507
[6] Raval H N, Tiwari S P, Navan R R, Mhaisalkar, Rao V R 2009 IEEE Electron Device Lett. 30 484
[7] Kim J B, Fuentes H C, Kippelen B 2008 Appl. Phys. Lett. 93 242111
[8] Wang G M, Moses D, Heeger A J 2004 J. Appl. Phys. 95 316
[9] Larsson O, Said E, Berggren M, Crispin X 2009 Adv. Funct. Mater. 19 3334
[10] Cho J H, Lee J, He Y, Kim B, Lodge P T, Frisbie C D 2008 Adv. Mater. 20 686
[11] Liu Y R, Chen W, Liao R 2010 Acta Phys. Sin. 59 8088 (in Chinese) [刘玉荣, 陈伟, 廖荣 2010 物理学报 59 8088]
[12] Sun J, Liu H X, Jiang J, Lu A X, Wan Q 2010 J. Mater. Chem. 20 8010
[13] Lu A X, Sun J, Jiang J, Wan Q 2009 Appl. Phys. Lett. 95 222905
[14] Jiang J, Sun J, Zhou B, Lu A X, Wan Q 2010 IEEE Electron Device Lett. 31 1263
[15] Jiang J, Dai M Z, Sun J, Zhou B, Lu A X, Wan Q 2011 Appl. Phys. Lett. 109 054501
[16] Jiang J, Sun J, Lu A X, Wan Q 2011 IEEE Electron Device Lett. 58 547
[17] Wee G, Larsson O, Srinviasan M, Bcrggren M, Crispin X, Mhaisalkar S 2010 Adv. Funct. Mater. 20 4344
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