印刷有机数字电路及应用

Printed Organic Digital Circuits and Its Applications

印刷有机电子技术是基于印刷原理的有机电子器件制造技术,是指将有机电子材料配制成功能性油墨,用印刷方式来制造电子器件与系统的方法,其发展涉及到材料化学、微电子学等多个学科方面的知识。其独特的制造方式和器件形态具有柔性、低成本、大面积制造等优势,并且与传统硅基电子器件在应用场合上形成了互补,在生物传感、电子皮肤、柔性显示等领域展示出优势。为了及时跟进这一快速发展的领域,对领域的发展有宏观的把握,本文从印刷技术和电路系统的角度进行了全面概述,介绍了喷墨打印、丝网印刷和转印印刷等印刷技术和基于印刷技术制备的有机数字电路(反相器、与非门、环形振荡器、D触发器),以及实现功能化的印刷电子应用(RFID、电子皮肤、OLED显示驱动背板等);最后,对本领域目前存在的问题和未来发展方向做了简要探讨。

Printed organic electronic technology is the electronic manufacturing technology based on the printing method,and particularly refers to the printing of electronic devices by using functional inks consisting of organic semiconductor materials.The development of this technology involves multidisciplinary approaches including material chemistry and microelectronics.The unique fabrication method and device form brings the flexibility,low-cost and large-area processability to the devices,complementary to Si based electronics in the applications of biosensing,electronic skin and flexible display.To capture the rapid progress of this research field,a timely review of recent work is necessary.In addition,a better understanding of both material processing and digital electronics is essential for the development of this field.In this work,we provide a comprehensive overview from the perspective of printing technology and circuit systems.Printing technologies such as inkjet printing,screen printing,and transfer printing,including both the printing mechanisms and their applications related to organic devices are introduced.The functionality and the development challenge of organic digital circuits such as inverter,NAND gate,ring oscillator and D-type flip-flop,are summarized.We then review the applications of printed organic electronics,such as RFID,electronic skin,and OLED displays.Finally,the challenges and the outlook of printed organic electronics are briefly discussed.