title: Efficient quantum dot light-emitting diodes with solution-processable molybdenum oxide as the anode buffer layer.
abstract: Quantum dot light-emitting diodes (QD-LEDs) are characterized by pure and saturated emission colors with narrow bandwidth. Optimization of the device interface is an effective way to achieve stable and high-performance QD-LEDs. Here we utilized solution-processed molybdenum oxide (MoOx) as the anode buffer layer on ITO to build efficient QD-LEDs. Using MoOx as the anode buffer layer provides the QD-LED with good Ohmic contact and a small charge transfer resistance. The device luminance is nearly independent of the thickness of the MoOx anode buffer layer. The QD-LEDs with a MoOx anode buffer layer exhibit a maximum luminance and luminous efficiency of 5230 cd m(-2) and 0.67 cd A(-1) for the yellow emission at 580 nm, and 7842 cd m(-2) and 1.49 cd A(-1) for the red emission at 610 nm, respectively.
authors.affiliation: State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Renewable Energy, North China Electric Power University, Beijing, People's Republic of China.
authors.forename: Shaojian
authors.initials: S
authors.lastname: He
authors.forename: Shusheng
authors.initials: S
authors.lastname: Li
authors.forename: Fuzhi
authors.initials: F
authors.lastname: Wang
authors.forename: Andrew Y
authors.initials: AY
authors.lastname: Wang
authors.forename: Jun
authors.initials: J
authors.lastname: Lin
authors.forename: Zhan'ao
authors.initials: Z
authors.lastname: Tan
mesh_terms: D002021:Buffers; D004566:Electrodes; D004867:Equipment Design; D008029:Lighting / Q000295:instrumentation*; D008982:Molybdenum / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*; D045663:Quantum Dots; D059205:Renewable Energy; D017971:Tin Compounds / Q000737:chemistry
chemical_list: D002021:Buffers; D010087:Oxides; D017971:Tin Compounds; C539565:molybdenum dioxide; C109984:indium tin oxide; D008982:Molybdenum