Scalable Fabrication of Organic Single-Crystalline Wafers for Reproducible TFT Arrays
Scalable Fabrication of Organic Single-Crystalline Wafers for Reproducible TFT Arrays
复制标题
DOI：
10.1038/s41598-019-50294-x
复制
发表时间：
2019-11-04
影响因子：
4.6
通讯作者：
Takeya, Jun
中科院分区：
文献类型：
--
作者：
Kumagai, Shohei;Yamamura, Akifumi;Takeya, Jun
有机半导体（OSC）以材料科学和印刷技术的重大发展为基础，为印刷电子电路的生产提供了理想的平台。然而，其独特的溶液加工能力是否可以促进具有合理面积覆盖的集成电路的可靠大规模制造，以及溶液加工电子器件的大规模生产在多大程度上可以大幅降低制造成本，仍然存在争议。在本研究中，我们通过简单的一次性印刷技术成功制造了 4 英寸（约 100 毫米）有机单晶晶片，在其上集成并表征了 1,600 个有机晶体管。由于其单晶性质，我们能够验证其极高的可靠性和再现性，迁移率高达 10 cm(2) V-1 s(-1)、接近于零的开启电压以及大约 10(7) 的出色开关比。这项工作为印刷电子领域提供了一个重要的里程碑，实现了 OSC 器件的工业级制造，同时降低了制造成本。
Building on significant developments in materials science and printing technologies, organic semiconductors (OSCs) promise an ideal platform for the production of printed electronic circuits. However, whether their unique solution-processing capability can facilitate the reliable mass manufacture of integrated circuits with reasonable areal coverage, and to what extent mass production of solution-processed electronic devices would allow substantial reductions in manufacturing costs, remain controversial. In the present study, we successfully manufactured a 4-inch (c.a. 100 mm) organic single-crystalline wafer via a simple, one-shot printing technique, on which 1,600 organic transistors were integrated and characterized. Owing to their single-crystalline nature, we were able to verify remarkably high reliability and reproducibility, with mobilities up to 10 cm(2) V-1 s(-1), a near-zero turn-on voltage, and excellent on-off ratio of approximately 10(7). This work provides a critical milestone in printed electronics, enabling industry-level manufacturing of OSC devices concomitantly with lowered manufacturing costs.