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Silver–Bismuth Bilayer Anode for Perovskite Nanocrystal Light-Emitting Devices
- Source :
- The Journal of Physical Chemistry Letters. 11:3853-3859
- Publication Year :
- 2020
- Publisher :
- American Chemical Society (ACS), 2020.
-
Abstract
- Perovskite nanocrystal light-emitting devices (PNC LEDs) exhibit great potential in display and lighting applications. Balanced hole and electron injection in the light-emitting layer is undoubtedly an effective way to improve LED performance. Here, bismuth (Bi) was introduced into PNC LEDs to form a silver-bismuth (Ag-Bi) bilayer anode. Ag diffused into a defective 2 nm thick Bi layer to form an alloy-like state that promoted hole injection, reduced the charge transfer resistance, and enhanced charge transfer, leading to more balanced hole-electron carriers in the emission layer through hole injection enhancement. As a result, the turn-on voltage and brightness changed from 2.41 V and 2200 cd m
- Subjects :
- Materials science
business.industry
Bilayer
chemistry.chemical_element
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Bismuth
Anode
law.invention
chemistry
Nanocrystal
Electron injection
law
Optoelectronics
General Materials Science
Physical and Theoretical Chemistry
0210 nano-technology
business
Layer (electronics)
Perovskite (structure)
Light-emitting diode
Subjects
Details
- ISSN :
- 19487185
- Volume :
- 11
- Database :
- OpenAIRE
- Journal :
- The Journal of Physical Chemistry Letters
- Accession number :
- edsair.doi.dedup.....602517bbeaa283a15a837718eb6d3975