利用化学气相沉积法生长的高性能的层状石墨烯,通过转移和图案化后用作电极,制备了底接触的并五苯有机薄膜晶体管(OTFTs).原子力显微镜观察发现,石墨烯电极的厚度比一般的金电极薄的多,所以石墨烯电极厚度对并五苯晶粒的生长影响不大.电学性能研究得到器件的输出和转移曲线、开关电流比、阈值电压、场效应迁移率.转移曲线的关态电流约为10-9 A,电流的开关比超过103.基于底接触的并五苯OTFTs的最大场效应迁移率约2×10-2 cm2·V-1·s-1.
参考文献
| [1] | Novoselov K S,Geim A K,Morozov S V,et al.Electric field effect in atomically thin carbon films[J].Science,2004,306(5696):666-669. |
| [2] | Geim A K.Graphene:Status and prospects[J].Science,2009,324(5934):1530-1534. |
| [3] | 胡耀娟,金娟,张卉,等.石墨烯的制备、功能化及在化学中的应用[J].物理化学学报.2010,2(8):2073-2086. |
| [4] | Reina A,Jia X,Ho J,et al.Layer area,Few-layer graphene films on arbitrary substrates by chemical vapor deposition[J].NanoLett.,2009,9(8):3087-3087. |
| [5] | Kim K S,Zhao Y,Jang H,et al. Large-scalc pattern growth of graphene films for stretchable transparent electrodes[J].Nature,2009,457(7230):706-710. |
| [6] | Li X,Cai W,An J,et al.Large-area synthesis of high-quality and uniform graphene films on copper foils[J].Science,2009,324(5932):1312-1314. |
| [7] | Bae S,Kim H,Lee Y,et al.Roll to-roll production of 30-inch graphene films for transparent electrodes[J].Nat.Nanotechnol.,2010,5(8):574-578. |
| [8] | Lee S,Jo G,Kang S-J,et al. Enhanced charge injection in pentacene field-effect transistors with graphene electrodes[J].Adv.Mater.,2011,23(1):100-105. |
| [9] | Jang S,Jang H,Lee Y,et al.Flexible,transparent single-walled carbon nanotube transistors with graphene electrodes[J].Nanotechnol,2010,21:425201. |
| [10] | Kim S,Jeong H Y,Kim S K,et al.Flexible memristive memory array on plastic substrates[J].Nano Lett.,2011,11(12):5438-5442. |
| [11] | Kang S J,Kim B,Kim K S,et al.Inking elastomeric stamps with micro-patterned,single layer graphene to create high-performance OFETs[J].Adv.Mater.,2011,23(31):3531-3535. |
| [12] | Lee W H,Park J,Sim S H,et al.Transparent flexible organic transistors based on monolayer graphene electrodes on plastic[J].Adv.Mater. 2011,23(15):1752-1756. |
| [13] | 庞渊源.石墨烯在半导体光电器件中的应用[J].液晶与显示,2011,26(3):296-300 |
| [14] | Xu M S,M Nakamura,M Sakai,et al. High-performance bottom-contact organic thin-film transistors with controlled molecule-crystal/electrode interface[J].Adv.Mater.,2007,19(3):371-375. |
| [15] | X Li,Y Zhu,W Cai,et al.Transfer of large-area graphene films for high-performance transparent conductive electrodes[J].NanoLett.,2009,9 (12):4359-4363. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%