Magnesium Oxide Powder

CAS Number 1309-48-4

Battery Materials, Inorganic Electronic Materials, Metal Oxides, Perovskite Interface Materials

A metal oxide used in a wide range of applications

reducing recombination losses in solar cells and improving cycling performance of lithium batteries, MgO

Overview | Product Information | Related Products

Magnesium oxide powder (CAS number 1309-48-4) is a metal oxide that consists of Mg²⁺ and O^2- ions in a cubic crystal lattice. With a large bandgap of approximately 7.8 eV, MgO serves as a hole-blocking layer in perovskite solar cells and dye-sensitized solar cells. MgO effectively blocks charge recombination during the charge transport process from the perovskite layer to the negative electrode. This results in an 11% increase in power conversion efficiency when a thin MgO layer is employed. Additionally, MgO is a superior substrate compared to SnO₂ for the growth of perovskite (CsPbIBr₂), reducing the formation of interface δ-phase perovskite.

Magnesium oxide powder also finds its application in lithium sulfur (Li-S) batteries. MgO can efficiently capture dissolved polysulfides, thereby enhancing the reversibility of Li-S battery cells. MgO-functionalized Li-S battery cells demonstrate an initial discharge capacity of 980 mAh/g, compared to 729 mAh/g in control cells. Furthermore, after 200 cycles, the capacity retention remains at 78.3%.

Hole-blocking in solar cells

Reducing charge recombination for optimal PCE

Used in multiple applications

such as solar cells, batteries and composites

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Quick and reliable shipping

High Purity

99.9% pure

General Information

CAS Number	1309-48-4
Chemical Formula	MgO
Full Name	Magnesium oxide
Molecular Weight	40.30 g/mol
Melting Point	2852 °C
Synonyms	Magnesium monoxide, Magnesia
Classification or Family	Metal oxides, DSSCs, Perovskite solar cells, Lithium batteries, Hole-blocking layers

Product Details

Purity	99.9%
Particle Size	30 – 50 nm
Appearance	White powder

MSDS Documentation

Magnesium oxide powder MSDS Sheet

References

The influence of magnesium oxide interfacial layer on photovoltaic properties of dye-sensitized solar cells, M. Asemi et al., Appl. Phys. A, 122, 842 (2016); DOI: 10.1007/s00339-016-0369-0.
Highly efficient perovskite solar cells for light harvesting under indoor illumination via solution processed SnO₂/MgO composite electron transport layers, J. Dagar et al., Nano Energy, 49, 290–299 (2018); DOI: 10.1016/j.nanoen.2018.04.027.
MgO nanoparticle modified anode for highly efficient SnO₂-based planar perovskite solar cells, J. Ma et al., Adv. Sci., 4, 1700031 (2017); DOI: 10.1002/advs.201700031.

Conductive and stable magnesium oxide electron-selective contacts for efficient silicon solar cells, Y. Wan et al., Adv. Energy Mater., 7, 1601863 (2017); DOI: 10.1002/aenm.201601863.
Multifunctional MgO layer in perovskite solar cells, X. Guo et al., ChemPhysChem, 16, 1727–1732 (2015); DOI: 10.1002/cphc.201500163.
Interface modulator of ultrathin magnesium oxide for low-temperature-processed inorganic CsPbIBr₂ perovskite solar cells with efficiency over 11%, H. Wang et al., Sol. RRL, 4, 2000226 (2020); DOI: 10.1002/solr.202000226.
Metal-organic framework-derived magnesium oxide@carbon interlayer for stable lithium-sulfur batteries, H. Kang et al., ACS Sustainable Chem. Eng., 11, 1344–1354 (2023); DOI: 10.1021/acssuschemeng.2c05064.
Improvement of cycling performance of lithium-sulfur batteries by using magnesium oxide as a functional additive for trapping lithium polysulfide, R. Ponraj et al., ACS Appl. Mater. Interfaces, 8, 4000–4006 (2016); DOI: 10.1021/acsami.5b11327.

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