4.8 Article

A hybrid blue perovskite@metal-organic gel (MOG) nanocomposite: simultaneous improvement of luminescence and stability

Journal

CHEMICAL SCIENCE
Volume 10, Issue 45, Pages 10524-10530

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c9sc03829a

Keywords

-

Funding

  1. U.G.C.
  2. SERB [SB/FT/CS-116/2014, EMR/2016/000410]
  3. DST-Inspire fellowship [DST/INSPIRE/03/2016/001694]
  4. DST Nanomission Thematic Unit

Ask authors/readers for more resources

Blue light-emitting hybrid perovskite nanocrystals (NCs) are promising candidates for optoelectronic applications. However, these NCs suffer severely from low photoluminescence quantum yield (PLQY) and inferior stability under working conditions. Herein, we report, for the first time, a simultaneous dramatic improvement in both the luminescence and the stability of hybrid perovskite NCs through embedding in a porous metal-organic gel (MOG) matrix. The nanocomposite (EAPbBr(3)@MOG, EA: ethylammonium) shows sharp emission in the intense blue region (lambda(max) < 440 nm), with a substantial ten-fold enhancement in the PLQY (similar to 53%) compared with EAPbBr(3) NCs (PLQY similar to 5%). Incorporation of perovskite NCs into the soft MOG matrix provides the additional benefits of flexibility as well as water stability. As a proof of principle, these nanocomposites were further utilized to fabricate a white light-emitting diode. The combination of high brightness, stability and flexibility of these nanocomposites could render them viable contenders in the development of efficient, blue light-emitting diodes for practical applications.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.8
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available