Highly stable Na: CsPb(Br,I)3 @Al2 O3 nanocomposites prepared by a pre-protection strategy

Nanoscale
Yongqiang JiNikolai V Gaponenko

Abstract

Among the leading energy materials, metal tri-halide perovskite quantum dots (PQDs) with outstanding optoelectronic properties are at the forefront of current research. However, enormous challenges remain to be addressed, including hazardous components and poor stability, before achieving practical applications of PQDs. Although there are diverse methods to improve the stability of PQDs, it is of central importance to avoid damage during operation. Herein, we develop a pre-protected strategy in which the coating combines the advantages of doping with sodium ions to jointly improve stability. Because the stable Na-rich surface acts as a defence, it protects the PQDs from damage during the coating process; therefore, they retain their initial fluorescence. When employing these Na-rich PQDs as core materials of a coating, the highly fluorescent Na: CsPb(Br,I)3@Al2O3 nanocomposites can maintain good stability even when directly immersed in water or exposed to illumination. Clearly, the combination of these features sheds light on the stabilization and applications of PQDs.

References

Jul 28, 2015·Journal of the American Chemical Society·Quinten A AkkermanLiberato Manna
Aug 27, 2016·Chemistry of Materials : a Publication of the American Chemical Society·Francisco PalazonLiberato Manna
Mar 31, 2017·Journal of the American Chemical Society·Zeke LiuA Paul Alivisatos
May 27, 2017·Angewandte Chemie·Anna LoiudiceRaffaella Buonsanti
Nov 22, 2017·Nanoscale·A KostopoulouE Stratakis
Dec 13, 2017·Journal of the American Chemical Society·Huicheng HuYadong Yin
Feb 21, 2018·Nature Materials·Quinten A AkkermanLiberato Manna
Apr 14, 2018·The Journal of Physical Chemistry Letters·Quinten A AkkermanLiberato Manna
Apr 26, 2018·ACS Applied Materials & Interfaces·Xinyu ShenWilliam W Yu
Jul 6, 2018·ACS Central Science·Qiao Zhang, Yadong Yin
May 1, 2019·Nanoscale·Lakshminarayana PolavarapuRoman Krahne
Oct 9, 2019·Chemical Communications : Chem Comm·Yongqiang JiNikolai V Gaponenko

❮ Previous
Next ❯

Citations

Feb 18, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Yongqiang JiArshad Saleem Bhatti
Apr 14, 2021·The Journal of Physical Chemistry Letters·Yongqiang JiArshad Saleem Bhatti
May 11, 2021·ACS Applied Materials & Interfaces·Lin ZhangZhaoxin Wu
Nov 11, 2020·The Journal of Physical Chemistry Letters·Yongqiang JiNikolai V Gaponenko

❮ Previous
Next ❯

Methods Mentioned

BETA
transmission electron microscopy
X-ray
infrared spectroscopy

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.