题目：

Controlled Growth of Large-Area Aligned Single-Crystalline Organic Nanoribbon Arrays for  Transistors and Light-Emitting Diodes Driving

作者：

Wei Wang, Liang Wang, Gaole Dai, Wei Deng, Xiujuan Zhang, Jiansheng Jie*, Xiaohong Zhang

单位：

Jiangsu Key  Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University Suzhou,   Suzhou 215123, Jiangsu, People’s Republic of China

摘要：

Organic field-effect transistors (OFETs) based on organic micro-/nanocrystals have been widely reported with charge carrier mobility exceeding 1.0 cm² V^-1 s^-1, demonstrating great potential for high-performance, low-cost organic electronic applications. However, fabrication of large-area organic micro-/nanocrystal arrays with consistent crystal growth direction has posed  a significant technical challenge. Here, we describe a solution-processed dip-coating technique to grow large-area, aligned 9,10-bis(phenylethynyl) anthracene (BPEA) and 6,13-bis(triisopropylsilylethynyl) pentacene (TIPSPEN) single-crystalline nanoribbon arrays. The method is scalable to a 5 x10 cm² wafer substrate, with around 60% of the wafer surface covered by aligned crystals. The quality of crystals can be easily controlled by tuning the dip-coating speed. Furthermore, OFETs based on well-aligned BPEA and TIPS-PEN single-crystalline nanoribbons were constructed. By optimizing channel lengths and using appropriate metallic electrodes, the   BPEA and TIPS-PEN-based OFETs showed hole mobility exceeding 2.0 cm² V^-1 s^-1 (average mobility 1.2 cm² V^-1 s^-1) and 3.0 cm² V^-1 s^-1 (average mobility 2.0 cm² V^-1 s^-1), respectively. They both have a high on/off ratio (I_on/I_off)>10⁹. The performance can well satisfy the requirements for light-emitting diodes driving.

影响因子：

4.849

分区情况：

二区

链接：

http://www.nmletters.org/abstract/volume-9/issue-4/560-controlled-growth-of-large-area-aligned-single-crystalline-organic-nanoribbon-arrays-for-transistors-and-light-emitting-diodes-driving