Organometal halide perovskite light-emitting diodes (LEDs) with laminated carbon nanotube (CNT) electrodes are reported. The LEDs have an indium tin oxide (ITO) bottom electrode, a screen printed methylammonium lead tribromide (MAPbBr₃)/polymer composite thin film as the emissive layer, and laminated CNT as the top electrode. The devices can be turned on at 2.2 V, reaching a brightness of 4,960 cd m⁻² and a current efficiency of 1.54 cd A⁻¹ at 6.9 V. The greatly simplified fabrication process in this work can potentially lead to the scalable manufacturing of large size and low cost LED panels in the future.

Date Published: 25 August 2017
PDF: 6 pages
Proc. SPIE 10362, Organic Light Emitting Materials and Devices XXI, 1036212 (25 August 2017); doi: 10.1117/12.2270949

Published in SPIE Proceedings Vol. 10362:
Organic Light Emitting Materials and Devices XXI
Franky So; Chihaya Adachi; Jang-Joo Kim, Editor(s)