材料科学
有机半导体
薄膜
并五苯
纳米技术
涂层
光电子学
有机电子学
Crystal(编程语言)
单晶
半导体
制作
图层(电子)
薄膜晶体管
晶体管
结晶学
化学
计算机科学
量子力学
电压
程序设计语言
替代医学
病理
物理
医学
作者
Ying Diao,Benjamin C. K. Tee,Gaurav Giri,Jie Xu,Do Hwan Kim,Héctor A. Becerril,Randall M. Stoltenberg,Tae Hoon Lee,Gi Xue,Stefan C. B. Mannsfeld,Zhenan Bao
出处
期刊:Nature Materials
[Springer Nature]
日期:2013-06-02
卷期号:12 (7): 665-671
被引量:875
摘要
Solution coating of organic semiconductors offers great potential for achieving low-cost manufacturing of large-area and flexible electronics. However, the rapid coating speed needed for industrial-scale production poses challenges to the control of thin-film morphology. Here, we report an approach—termed fluid-enhanced crystal engineering (FLUENCE)—that allows for a high degree of morphological control of solution-printed thin films. We designed a micropillar-patterned printing blade to induce recirculation in the ink for enhancing crystal growth, and engineered the curvature of the ink meniscus to control crystal nucleation. Using FLUENCE, we demonstrate the fast coating and patterning of millimetre-wide, centimetre-long, highly aligned single-crystalline organic semiconductor thin films. In particular, we fabricated thin films of 6,13-bis(triisopropylsilylethynyl) pentacene having non-equilibrium single-crystalline domains and an unprecedented average and maximum mobilities of 8.1±1.2 cm2 V−1 s−1 and 11 cm2 V−1 s−1. FLUENCE of organic semiconductors with non-equilibrium single-crystalline domains may find use in the fabrication of high-performance, large-area printed electronics. Solution printing of organic semiconductors could in principle be scaled to industrial needs, yet attaining aligned single-crystals directly with this method has been challenging. By using a micropillar-patterned printing blade designed to enhance the control of crystal nucleation and growth, thin films of macroscopic, highly aligned single crystals of organic semiconductors can now be fabricated.
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