| 石墨烯电极有机薄膜晶体管研究 |
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| 引用本文： | 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. |
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| 作者姓名： | 陈世琴 陈梦婕 邱龙臻 |
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| 作者单位： | 1. 特种显示技术教育部重点实验室,特种显示技术国家工程实验室,现代显示技术省部共建国家重点实验室培育基地,合肥工业大学光电技术研究院,安徽合肥230009;合肥工业大学化学工程学院,安徽合肥230009
2. 特种显示技术教育部重点实验室,特种显示技术国家工程实验室,现代显示技术省部共建国家重点实验室培育基地,合肥工业大学光电技术研究院,安徽合肥230009 |
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| 基金项目： | “973”计划前研专项(No.2010CB334704,No.2012CB723406);国家自然科学基金(No.21174036,No.51103034);安徽省自然科学基金(No.11040606M146);教育部博士点基金(No.20100111120006) |
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| 摘 要： | 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。
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| 关 键 词： | 有机薄膜晶体管 层状石墨烯 图案化 电性能 |
| 收稿时间： | 2012/4/11 |
Organic Thin-Film Transistor Based on Graphene Electrodes |
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| CHEN Shi-qin
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CHEN Meng-jie
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QIU Long-zhen.Organic Thin-Film Transistor Based on Graphene Electrodes[J].Chinese Journal of Liquid Crystals and Displays,2012,27(5):595-598. |
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| Authors: | CHEN Shi-qin CHEN Meng-jie QIU Long-zhen |
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| Affiliation: | 1(1.Key Lab of Special Display Technology,Ministry of Education,National Engineering Lab of Special Display Technology,National Key Lab of Advanced Display Technology,Academy of Opto-Electronic Technology, Hefei University of Technology,Hefei 230009,China; 2.School of Chemical Engineering,Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | High-performance bottom-contact pentacene OTFTs with graphene source/drain electrodes by transferring and patterning CVD-grown graphene films in a room-temperature process has been developed.The AFM images show that the growth of pentacene grains was not affected by the electrode,because patterned graphene electrodes were significantly thinner compared to common metal electrodes.The output and transfer curve,on/off current ratio,threshold voltage and field-effect mobility of the device were obtained by electric mea-surements.The transfer curve showed an off-current level of ≈109 A and an on/off current ratio exceeding 103.The bottom-contact pentacene OTFTs based on graphene source/drain electrodes had a maximum field-effect mobility of up to 2×10-2 cm2 ·V-1 ·s-1. |
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| Keywords: | organic thin film transistor layered graphene patterned electrical properties |
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