Enhanced Performance in Fluorene-Free Organometal Halide Perovskite Light-Emitting Diodes using Tunable, Low Electron Affinity Oxide Electron Injectors

Fluorene‐free perovskite light‐emitting diodes (LEDs) with low turn‐on voltages, higher luminance and sharp, color‐pure electroluminescence are obtained by replacing the F8 electron injector with ZnO, which is directly deposited onto the CH3NH3PbBr3 perovskite using spatial atmospheric atomic layer...

Full description

Saved in:
Bibliographic Details
Published inAdvanced materials (Weinheim) Vol. 27; no. 8; pp. 1414 - 1419
Main Authors Hoye, Robert L. Z., Chua, Matthew R., Musselman, Kevin P., Li, Guangru, Lai, May-Ling, Tan, Zhi-Kuang, Greenham, Neil C., MacManus-Driscoll, Judith L., Friend, Richard H., Credgington, Dan
Format Journal Article
LanguageEnglish
Published Germany Blackwell Publishing Ltd 25.02.2015
BlackWell Publishing Ltd
Subjects
Communications
Deposition
Electric potential
Electron affinity
electron injection barrier tuning
Injectors
Light-emitting diodes
perovskite light-emitting diodes
Perovskites
polymer light-emitting diodes
spatial atmospheric atomic layer deposition
Voltage
zinc magnesium oxide
Zinc oxide
perovskite light-emitting diodes
spatial atmospheric atomic layer deposition
electron injection barrier tuning
polymer light-emitting diodes
zinc magnesium oxide
Online AccessGet full text

Cover

More Information
Summary:Fluorene‐free perovskite light‐emitting diodes (LEDs) with low turn‐on voltages, higher luminance and sharp, color‐pure electroluminescence are obtained by replacing the F8 electron injector with ZnO, which is directly deposited onto the CH3NH3PbBr3 perovskite using spatial atmospheric atomic layer deposition. The electron injection barrier can also be reduced by decreasing the ZnO electron affinity through Mg incorporation, leading to lower turn‐on voltages.
Bibliography:Cambridge Commonwealth, European and International Trusts
A*STAR National Science Scholarship, Girton College Cambridge
istex:779967FC0DE9CE2384B4C6848286DD3DB357D8F1
Cambridge Display Technology
ArticleID:ADMA201405044
Rutherford Foundation of New Zealand
ark:/67375/WNG-PJ3FMDJP-H
Royal Society
ERC Advanced Investigator Grant, Novox, ERC-2009-adG - No. 247276
Gates Cambridge Scholarship, EPSRC - No. EP/G060738/1
The copyright line for this article was changed on February 19, 2015, after original online publication.
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201405044