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Fine‐Tuned Multilayered Transparent Electrode for Highly Transparent Perovskite Light‐Emitting Devices
Author(s) -
Wu Hua,
Zhang Yu,
Zhang Xiaoyu,
Lu Min,
Sun Chun,
Bai Xue,
Zhang Tieqiang,
Sun Guang,
Yu William W.
Publication year - 2018
Publication title -
advanced electronic materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.25
H-Index - 56
ISSN - 2199-160X
DOI - 10.1002/aelm.201700285
Subject(s) - materials science , optoelectronics , light emitting diode , perovskite (structure) , photoluminescence , indium tin oxide , nanocrystal , transmittance , cathode , anode , indium , layer (electronics) , electrode , nanotechnology , chemical engineering , chemistry , engineering
The high photoluminescence quantum yield, wide color tunability and narrow bandwidth of perovskite nanocrystals make them favorable for light source and display applications. Here, highly transparent green‐light‐emitting devices (LEDs) using inorganic cesium lead halide perovskite nanocrystal films as the emissive layer are reported. The effect of multilayered nanostructured transparent electrode on optical properties and performance within the LEDs is investigated by fine tuning layer thickness. The results show that the light transmission in visible region can be enhanced with this nanostructured film. These LEDs exhibited a high transmittance (average 73% over 400–700 nm) and high brightness of 2640 and 1572 cd m −2 for indium‐doped tin oxide (ITO) cathode and MoO x /Au/MoO x anode sides, respectively.