异质诱导生长的酞菁铜薄膜晶体管的研究

液晶与显示 , 2016, 31(2): 157-163. doi: 10.3788/YJYXS20163102.0157

异质诱导生长的酞菁铜薄膜晶体管的研究

李亨利 ^1, , 都昊 ^2, , 王丽娟 ^3, , 张玉婷 ^4, , 李一平 ^5, , 邹凤君 ^6, , 宋贵才 ^7, , 宋晓峰 ^8,

1.长春工业大学化学工程学院,吉林长春,130012

2.长春理工大学理学院,吉林长春,130022

3.长春工业大学化学工程学院,吉林长春,130012

4.长春理工大学理学院,吉林长春,130022

5.长春理工大学理学院,吉林长春,130022

6.长春工业大学化学工程学院,吉林长春,130012

7.长春理工大学理学院,吉林长春,130022

8.长春工业大学化学工程学院,吉林长春,130012

基金项目: National Natural Science Foundation of China(21403016) 吉林省科技发展计划资助项目(20130102065JC,20140203018GX) 国家自然科学基金资助项目(21403016) Key Program for Science and Technology Development of Jilin Province of China(20130102065JC,20140203018GX)

关键词： α-四噻吩 , p六联苯薄膜 , 酞菁铜 , 有机薄膜晶体管 , 诱导效应

Research of copper phthalocyanine thin film transistor by heterogeneous induced growth

Keywords： α-tetrathiophene , para-hexaphenyl , copper phthalocyanine , organic thin film transistor , induced effect

因酞菁薄膜平面具有多电子共轭大π键结构,本文采用异质诱导的方式对酞菁薄膜的生长特性进行了改善研究.采用高掺杂硅为栅极,氧化硅为绝缘层,生长α-四噻吩或p-六联苯薄膜为异质诱导层,制备了酞菁铜有机薄膜晶体管.利用原子力显微镜研究薄膜生长特性,并对比研究了2种诱导层对薄膜晶体管性能的影响.实验结果表明:α-四噻吩上生长的酞菁铜薄膜,形貌呈片状,而p六联苯上生长的酞菁铜薄膜,形貌呈针状,均与单层酞菁铜棒状形貌不同.同时,α-四噻吩与p六联苯薄膜上生长酞菁铜后,两者晶体管电性能都有不同程度的提高,均比单层酞菁铜提高了1～2个数量级,表明α-四噻吩或p-六联苯对酞菁铜薄膜均有诱导效应,可以获得高性能的有机薄膜晶体管.

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