通过测量p+Si/PEDOT:PSS/Tips-PEN/Ag器件的J-V特性,研究了退火时间对溶液法制备Tips-PEN薄膜电流传输特性的影响.实验结果表明,在退火时间为2h和5h的条件下,随偏置电压的增加,双对数J-V曲线存在斜率依次为2,大于3以及2的不同区域,而在退火时间达到10 h后,低电压下斜率为2的区域消失.根据空间电荷限制电流模型,分析了不同区域的电流传输机理,并提取了陷阱密度和空穴的迁移率.在退火时间为10h时,材料有最低的陷阱密度5.70×1018/cm3和最大的空穴迁移率1.68×10-4 cm2/(V·s),其在低偏置下传输特征的改变表明与溶剂残留有关的单一能级陷阱极大减小.
参考文献
| [1] | Montero J M,Bisquert J.Interpretation of trap-limited mobility in space-charge limited current in organic layers with exponential density of traps[J].Journal of Applied Physics,2011,110(4):043705(1-6). |
| [2] | Lee K,Weis M,Manaka T,et al.Multiple-trapping in pentacene field-effect transistors with a nanoparticles selfassembled monolayer[J].AIP advances,2012,2(2):022128(1-8). |
| [3] | Huby N,Hirsch L,Wantz G,etal.Injection and transport processes in organic light emitting diodes based on a silole derivative[J].Journal of applied physics,2006,99(8):084907(1-6). |
| [4] | 冯魏良,黄培.柔性显示衬底的研究及进展[J].液晶与显示,2012,27(5):599-607.Feng W L,Huang P.Advances in flexible displays substrates[J].Chinese Journal of Liquid Crystals and Displays,2012,27(5):599-607.(in Chinese) |
| [5] | 陈世琴,陈梦婕,邱龙臻.石墨烯电极有机薄膜晶体管研究[J].液晶与显示,2012,27(5):595-598.Chen S Q,Chen M J,Qiu L Z.Organic thin-film transistor based on graphene electrode[J].Chinese Journal of Liquid Crystals and Displays,2012,27(5):595-598.(in Chinese) |
| [6] | 王丽娟,张伟,秦海涛,等.溶液加工条件对聚合物体相异质结太阳能电池性能的影响[J].液晶与显示,2013,28(4):521-526.Wang L J,Zhang W,Qing H T,et al.Influence of solution-processed conditions on polymer bulk heterojunction solar cell performance[J].Chinese Journal of Liquid Crystals and Displays,2013,28(4):521-526.(in Chinese) |
| [7] | Lee S,Koo B,Shin J,et al.Effects of hydroxyl groups in polymeric dielectrics on organic transistor performance[J].Applied Physics Letters,2006,88(16):162109(1-3). |
| [8] | Park S K,Jackson T N,Anthony J E,et al.High mobility solution processed 6,13-bis (triisopropyl-silylethynyl) pentacene organic thin film transistors[J].Applied Physics Letters,2007,91 (6):063514 (1-3). |
| [9] | Lee S H,Choi M H,Han S H,et al.High-performance thin-film transistor with 6,13-bis (triisopropylsilylethynyl) pentacene by inkjet printing[J].Organic Electronics,2008,9(5):721-726. |
| [10] | Hong J P,Park A Y,Iee S,et al.Tuning of Ag work functions by self-assembled monolayers of aromatic thiols for an efficient hole injection for solution processed triisopropylsilylethynyl pentacene organic thin film transistors[J].Applied Physics Letters,2008,92(14):143311(1-3). |
| [11] | Chen J,Anthony J,Martin D C.Thermally induced solid-state phase transition of bis (triisopropylsilylethynyl) pentacene crystals[J].The Journal of Physical Chemistry B,2006,110(33):16397-16403. |
| [12] | Lloyd M T,Mayer A C,Tayi A S,et al.Photovoltaic cells from a soluble pentacene derivative[J].Organic Electronics,2006,7(5):243-248. |
| [13] | Choi K N,Kim K S,Chung K S,et al.Solvent effect on the electrical properties of triisopropylsilylethynyl (TIPS) pentacene organic thin-film transistors[J].IEEE Transactions on Device and Materials Reliability,2009,9(3):489-493. |
| [14] | Mark P,Helfrich W.Space-charge-limited currents in organic crystals[J].Journal of Applied Physics,1962,33 (1):205-215. |
| [15] | Nicolai H T,Mandoc M M,Blom P W M.Electron traps in semiconducting polymers:Exponential versus Gaussian trap distribution[J].Physical Review B,2011,83(19):195204(1-5). |
| [16] | Nguyen T P.Defects in organic electronic devices[J].Physica Status Solidi (A),2008,205(1):162-166. |
| [17] | Blom P W M,De Jong M J M,Vleggaar J J M.Electron and hole transport in poly (p-phenylene vinylene) devices[J].Applied Physics Letters,1996,68(23):3308-3310. |
| [18] | Gupta D,Jeon N,Yoo S.Modeling the electrical characteristics of TIPS-pentacene thin-film transistors:Effect of contact barrier,field-dependent mobility,and traps[J].Organic Electronics,2008,9(6):1026-1031. |
| [19] | Blom P W M,De Jong M J M,Van Munster M G.Electric-field and temperature dependence of the hole mobility in poly (p-phenylene vinylene)[J].Physical Review B,1997,55(2):R656-R659. |
| [20] | Shang D S,Wang Q,Chen L D,et al.Effect of carrier trapping on the hysteretic current-voltage characteristics in Ag/La0.7 Ca0.3 MnO3 / Pt heterostructures[J].Physical Review B,2006,73 (24):245427 (1-7). |
| [21] | Muhammad A R K.Injection and transport mechanism in organic light-emitting diodes[D].Shanghai:Shang Hai University,2009. |
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