Devices, structures, materials and methods for vertical light emitting transistors and light emitting displays
摘要
說明書
LEPs (blue: PFO, green: super-yellow, red: MEH-PPV) have been fabricated into typical OLETs using thermal evaporated gold electrodes (70 nm thickness) with 20 pm channel length and 1000 μm channel width, and show a maximum power conversion efficiency of 0.002-0.005 Cd/A, an external quantum efficiency of 10-3, and a brightness <1000 Cd/m2 at supply and driving voltages of 150 V. Zwitteronic electron injection layers have also been developed for MEH-PPV OLEDs with a maximum power conversion efficiency of 1.1 Cd/A, and a brightness >12,000 Cd/m2. (See, e.g., H. P. Li, Y. Xu, 2009; and H. P. Li, Y. Xu, and G. C. Bazan, 2009, cited above.) VPLETs were also fabricated with LiF as a dielectric layer between two Al electrodes showing gate modulation, but no detailed information was provided on the VPLET's characterization. (See, e.g., Z. Xu, S. H. Li, L. Ma, G. Li and Y. Yang 2007, cited above.)
