title: Fully Screen-Printed, Large-Area, and Flexible Active-Matrix Electrochromic Displays Using Carbon Nanotube Thin-Film Transistors.
abstract: Semiconducting single-wall carbon nanotubes are ideal semiconductors for printed electronics due to their advantageous electrical and mechanical properties, intrinsic printability in solution, and desirable stability in air. However, fully printed, large-area, high-performance, and flexible carbon nanotube active-matrix backplanes are still difficult to realize for future displays and sensing applications. Here, we report fully screen-printed active-matrix electrochromic displays employing carbon nanotube thin-film transistors. Our fully printed backplane shows high electrical performance with mobility of 3.92 ± 1.08 cm2V-1s-1, on-off current ratio Ion/Ioff∼ 104, and good uniformity. The printed backplane was then monolithically integrated with an array of printed electrochromic pixels, resulting in an entirely screen-printed active-matrix electrochromic display (AMECD) with good switching characteristics, facile manufacturing, and long-term stability. Overall, our fully screen-printed AMECD is promising for the mass production of large-area and low-cost flexible displays for applications such as disposable tags, medical electronics, and smart home appliances.
authors.forename: Xuan
authors.initials: X
authors.lastname: Cao
authors.forename: Christian
authors.initials: C
authors.lastname: Lau
authors.forename: Yihang
authors.initials: Y
authors.lastname: Liu
authors.forename: Fanqi
authors.initials: F
authors.lastname: Wu
authors.forename: Hui
authors.initials: H
authors.lastname: Gui
authors.forename: Qingzhou
authors.initials: Q
authors.lastname: Liu
authors.forename: Yuqiang
authors.initials: Y
authors.lastname: Ma
authors.forename: Haochuan
authors.initials: H
authors.lastname: Wan
authors.affiliation: Department of Electrical Engineering, University of California , Los Angeles, California 90095, United States.|Center of Excellence for Green Nanotechnologies, King Abdulaziz City for Science and Technology , Riyadh 12371, Saudi Arabia.
authors.forename: Moh R
authors.initials: MR
authors.lastname: Amer
authors.forename: Chongwu
authors.initials: C
authors.lastname: Zhou
keywords: active-matrix backplane; electrochromic display; screen printing; single-wall carbon nanotubes; thin-film transistors