Stabilizing halide perovskite surfaces for solar cell operation with wide-bandgap lead oxysalts

Science
Shuang YangJinsong Huang

Abstract

We show that converting the surfaces of lead halide perovskite to water-insoluble lead (II) oxysalt through reaction with sulfate or phosphate ions can effectively stabilize the perovskite surface and bulk material. These capping lead oxysalt thin layers enhance the water resistance of the perovskite films by forming strong chemical bonds. The wide-bandgap lead oxysalt layers also reduce the defect density on the perovskite surfaces by passivating undercoordinated surface lead centers, which are defect-nucleating sites. Formation of the lead oxysalt layer increases the carrier recombination lifetime and boosts the efficiency of the solar cells to 21.1%. Encapsulated devices stabilized by the lead oxysalt layers maintain 96.8% of their initial efficiency after operation at maximum power point under simulated air mass (AM) 1.5 G irradiation for 1200 hours at 65°C.

References

Nov 25, 1985·Physical Review Letters·R Car, M Parrinello
Sep 18, 1999·Journal of Colloid and Interface Science·D PeakD L Sparks
Sep 30, 2009·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Paolo GiannozziRenata M Wentzcovitch
Oct 14, 2011·Physical Chemistry Chemical Physics : PCCP·Samantha J O HardmanWendy R Flavell
Aug 22, 2014·Nature Materials·Michael Grätzel
May 9, 2015·Nature Communications·Jixian XuEdward H Sargent
Jan 29, 2016·Accounts of Chemical Research·Yongbo Yuan, Jinsong Huang
May 18, 2016·Nature Communications·Wanyi NieAditya D Mohite
Oct 27, 2016·Physical Chemistry Chemical Physics : PCCP·Jie XingJinsong Huang
May 8, 2018·Nano Letters·Adharsh RajagopalAlex K-Y Jen

❮ Previous
Next ❯

Citations

May 19, 2020·Advanced Materials·Tingwei HeMingjian Yuan
Apr 9, 2020·Nanoscale Horizons : the Home for Rapid Reports of Exceptional Significance in Nanoscience and Nanotechnolgy·Sanghyun JeonSoong Ju Oh
Jun 17, 2020·Nature Communications·Xiangchuan MengYiwang Chen
Sep 11, 2020·Chemical Society Reviews·Nengxu LiHuanping Zhou
Nov 4, 2020·Nature Communications·Jin-Wook LeeYang Yang
Feb 2, 2021·Science Advances·Shangshang ChenJinsong Huang
Mar 18, 2021·Nature Communications·Ye LiuJinsong Huang

❮ Previous
Next ❯

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.