利用润湿/去润湿的方法配合旋涂工艺制备了图案化的TIPS-并五苯有机半导体薄膜,制备了顶接触有机薄膜晶体管(OTFTs).金相显微镜观察发现,转速的选择对TIPS-并五苯薄膜结晶形貌的影响较大.在1000～2000 r/min转速下制备的薄膜完整性好,结晶区域较大;而转速增加到3000 r/min后,难以获得完整的薄膜且晶粒尺寸变小.电学性能研究得到器件的输出曲线、转移曲线、开关电流比、阈值电压、场效应迁移率,发现结晶形貌好的器件具有更好的电学性能.1000 r/min转速下制备OTFT器件最大场效应迁移率为5.16×10-2 cm·V-1,s-1电流开关比为8×103.
参考文献
| [1] | Crone B,Dodabalapur A,Lin Y Y,et al.Large-scale complementary integrated circuits based on organic transistors[J].Nature,2000,403 (6769):521-523. |
| [2] | Klauk H,Zschieschang U,Pflaum J,et al.Ultralow-power organic complementary circuits[J].Nature,2007,445 (7129):745-748. |
| [3] | Sekitani T,Noguchi Y,Hata K,et al.A rubberlike stretchable active matrix using elastic conductors[J].Science,2008,321 (5895):1468-1472. |
| [4] | DeLongchamp D M,Kline R J,Lin E K,et al.High carrier mobility polythiophene thin films:structure determination by experiment and theory[J].Adv.Mater.,2007,19 (6):833-837. |
| [5] | Yan H,Chen Z H,Zheng Y,et al.A high-mobility electron-transporting polymer for printed transistors[J].Nature,2009,457(7230):679 686. |
| [6] | Cho J H,Lee J,Xia Y,etal.Printable ion-gel gate dielectrics for low-voltage polymer thin-film transistors on plastic[J].Nat.Mater.,2008,7(11):900-906. |
| [7] | Tsao H N,Cho D M,Park Ⅰ,et al.Ultrahigh mobility in polymer field-effect transistors by design[J].J.Am.Chen.Soc.,2011,133 (8):2605-2612. |
| [8] | Sun X N,Di C A,Liu Y Q.Engineering of the dielectric-semiconductor interface in organic field-effect transistors[J].J.Mater.Chem.,2010,20:2599-2611. |
| [9] | Smith J,Hamilton R,McCulloch I,et al.Solution-processed organic transistors based on semiconducting blends[J].J.Mater.Chem.,2010,20:2562-2574. |
| [10] | 曹进,委福祥,张晓波,等.加入激子阻挡层增强白色有机发光器件效率[J].光电子·激光,2005,16(10):1171-1174. |
| [11] | Qiu L Z,Xu Q,Lee W H,et al.Organic thin-film transistors with a photo-patternable semiconducting polymer blend[J].J.Mater.Chem.,2011,21:15637-15642. |
| [12] | Choo B K,Choi J S,Kim G,et al.Self-organized process for patterning of a thin-film transistor[J].J.Korean Phys.Soc.,2006,48(6):1719-1722. |
| [13] | Horowitz G.Organic field-effect transistors[J].Adv.Mate.,1998,10(5):365-377. |
| [14] | Kitamura M,Imada T,Arakawa Y.Organic light-emitting diodes driven by pentacene-based thin-film transistors[J].Appl.Phys.Lett.,2003,83(16):3410-3412. |
| [15] | Choi D,Ahn B,Kim S H,et al.High-performance triisopropylsilylethynyl pentacene transistors via spin coating with a crystallization-assisting layer[J].ACS Appl.Mater.Interfaces,2012,(4):117-122. |
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