PEDOT∶PSS掺杂丝素蛋白复合薄膜的半导体性能

doi:10.11896/cldb.18040192

材料导报

2019, Vol. 33

Issue (10): 1734-1737 https://doi.org/10.11896/cldb.18040192

高分子与聚合物基复合材料

PEDOT∶PSS掺杂丝素蛋白复合薄膜的半导体性能

徐翔宇^1,2, 李弘坤^1,2, 詹达^1,2, 刘向阳^1,2

1 厦门大学材料学院,厦门 361005
2 厦门大学生物仿生及软物质研究院,厦门 361005

Semiconducting Properties of PEDOT∶PSS Doped Silk Fibroin Composite Film

XU Xiangyu^1,2, LI Hongkun^1,2 , ZHAN Da^1,2, LIU Xiangyang^1,2

1 College of Materials, Xiamen University, Xiamen 361005
2 Research Institution for Biomimetics and Soft Matter, Xiamen University, Xiamen 361005

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摘要为了揭示丝素蛋白与有机半导体聚合物聚3,4-乙撑二氧噻吩:聚苯乙烯磺酸(PEDOT∶PSS)复合薄膜作为有源层的场效应,采用旋涂制膜法在重掺杂氧化硅片上制备了厚度均一、表面平整度较好的场效应晶体管,并探索了这种生物相容性可降解材料作为半导体的潜质。通过XRD、紫外-可见光分光光度计、FTIR和拉曼光谱等表征手段研究了丝素蛋白与PEDOT∶PSS复合薄膜的构象变化。复合薄膜晶体管的输出和转移特性曲线表明,器件的开关电流比为3、阈值电压为20 V、场效应迁移率为7.9 cm²/(V·s)。实验结果表明,通过在丝素蛋白中添加PEDOT∶PSS制备复合材料依然能够有效保留有机半导体的优良电学性质,证明了通过对生物材料进行掺杂是一种制备功能化生物复合材料的有效手段。

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	徐翔宇
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关键词: 丝素蛋白聚3,4-乙撑二氧噻吩:聚苯乙烯磺酸(PEDOT∶PSS) 有机场效应晶体管功能化

Abstract: In order to reveal the field effect of silk fibroin and organic semiconductor polymer (PEDOT∶PSS) composite film asan active layer, the thin film with uniform thickness and good surface smoothness based transistor was fabricated onto heavily doped silicon dioxide by spin-coating method. The potential in semiconductor application of this biocompatible degradable material was investigated. The conformational evolution of silk fibroin and PEDOT∶PSS composite film was analyzed by XRD, UV-Vis spectrophotometer, FTIR and Raman spectroscopy. The output and transfer characteristic curves of the device were analyzed and studied. The ratio of the switching current is about 3, the threshold voltage is 20 V, and the field-effect mobility is about 7.9 cm²/(V·s). The experimental results show that the composite material prepared by an appropriate process by mixing PEDOT∶PSS to silk fibroin can still retain the excellent electronic properties of organic semiconductors. It is proved that doping in biological materials is an effective method to prepare functionalized biocomposites for broadening its applications.

Key words: silk fibroin PEDOT∶PSS organic field-effect transistor functionalization

发布日期: 2019-05-16

ZTFLH:

TB34

基金资助: 国家自然科学基金(11404272);中央高校基础研究基金项目(20720140514);福建省自然科学基金(22171024);国家教育部博士点专项基金(20130121110018)

通讯作者: zhanda@xmu.edu.cn

作者简介: 徐翔宇,于2015年3月至2018年6月在福建省厦门大学材料学院、生物仿生及软物质研究院就学,主要从事生物分子与二维复合材料的制备研究。2018年6月毕业于厦门大学,获得工学硕士学位。詹达,福建省厦门大学材料学院生物仿生及软物质研究院,副教授。2013年毕业于新加坡南洋理工大学,获得物理与应用物理专业博士学位。主要研究领域是通过生物分子的特性来探测调制二维电子材料的电子能带结构状况,包括潜在的生物传感等方面的应用。

引用本文:

徐翔宇, 李弘坤, 詹达, 刘向阳. PEDOT∶PSS掺杂丝素蛋白复合薄膜的半导体性能[J]. 材料导报, 2019, 33(10): 1734-1737.
XU Xiangyu, LI Hongkun , ZHAN Da, LIU Xiangyang. Semiconducting Properties of PEDOT∶PSS Doped Silk Fibroin Composite Film. Materials Reports, 2019, 33(10): 1734-1737.

链接本文:

http://www.mater-rep.com/CN/10.11896/cldb.18040192 或 http://www.mater-rep.com/CN/Y2019/V33/I10/1734

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