English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We report here the fabrication of highly efficient and long-lasting quantum-dot light emitting diodes (QLEDs) by blending various alkali metal carbonate in magnesium (Mg) doped zinc oxide (ZnO) (MZO) electron transport layer (ETL). Alkali metal carbonates blending in MZO, X 2 CO 3 :MZO, control the band-gap, electrical properties, and thermal stability. This can therefore enhance the operational lifetime of QLEDs. It is found that the conductivity of X 2 CO 3 :MZO film can be controlled and the thermal stability of ETLs could be improved by X 2 CO 3 blending in MZO. The inverted red QLEDs (R-QLEDs) with Cs 2 CO 3 :MZO, Rb 2 CO 3 :MZO, and K 2 CO 3 :MZO ETLs exhibited the operational lifetime of 407 h for the R-QLEDs with Cs 2 CO 3 :MZO, 620 h with Rb 2 CO 3 :MZO and 94 h with K 2 CO 3 :MZO ETLs at T 95 with the initial luminance of 1000 cd/m 2 . Note that all red QLEDs showed the high brightness over 150,000 cd/m 2 . But the R-QLEDs with Na 2 CO 3 :MZO and Li 2 CO 3 :MZO ETLs exhibited shorter operational lifetime and poor brightness than the R-QLED with pristine MZO ETL.

Stability of Quantum-Dot Light Emitting Diodes with Alkali Metal Carbonates Blending in Mg Doped ZnO Electron Transport Layer