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Light‐Emitting Diodes: Highly Efficient Quantum Dot Light‐Emitting Diodes by Inserting Multiple Poly(methyl methacrylate) as Electron‐Blocking Layers (Adv. Funct. Mater. 50/2019)
Author(s) -
Rahmati Mohammad,
Dayneko Sergey,
Pahlevani Majid,
Shi Yujun
Publication year - 2019
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201970342
Subject(s) - materials science , quantum dot , diode , optoelectronics , light emitting diode , brightness , electron , methyl methacrylate , oled , nanotechnology , optics , layer (electronics) , composite material , copolymer , polymer , physics , quantum mechanics
In article number 1906742, Majid Pahlevani, Yujun Shi, and co‐workers present a new quantum‐dot light‐emitting diode device architecture, integrating multiple poly(methylmethacrylate) (PMMA) electron blocking layers between a pair of red‐emitting QD layers. The experimental optimization and numerical simulation demonstrate significant improvement in brightness and current efficiency from the structure consisting of two PMMA and three QD layers due to the reduction in electron leakage by the addition of PMMA layers.