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Perovskite Light‐Emitting Diodes: Efficient Visible Quasi‐2D Perovskite Light‐Emitting Diodes (Adv. Mater. 34/2016)
Author(s) -
Byun Jinwoo,
Cho Himchan,
Wolf Christoph,
Jang Mi,
Sadhanala Aditya,
Friend Richard H.,
Yang Hoichang,
Lee TaeWoo
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201670242
Subject(s) - perovskite (structure) , materials science , luminance , diode , optoelectronics , light emitting diode , exciton , oled , optics , nanotechnology , crystallography , physics , chemistry , condensed matter physics , layer (electronics)
Efficient quasi‐2D perovskite light‐emitting diodes (PeLEDs) are realized by partially substituting methyl ammonium (MA) cations with phenylethyl ammonium cations in MAPbBr3. The excitons move to the crystals, which have the smallest bandgap, and recombine. The quasi‐2D PeLED designed by T.‐W. Lee and co‐workers, as described on page 7515, shows higher luminance and current efficiency (2935 cd m −2 and 4.90 cd A −1 , respectively) compared with 3D MAPbBr3 PeLEDs.