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215066

Sigma-Aldrich

Gallium(III) oxide

≥99.99% trace metals basis

Synonym(s):

Gallium trioxide

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10 G
$139.00
50 G
$493.00

About This Item

Empirical Formula (Hill Notation):
Ga2O3
CAS Number:
12024-21-4
Molecular Weight:
187.44
EC Number:
234-691-7
MDL number:
MFCD00011020
UNSPSC Code:
12352303
PubChem Substance ID:
24852864
NACRES:
NA.23

$139.00

Available to ship onApril 29, 2025Details

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Quality Level

100

assay

≥99.99% trace metals basis

form

(crystalline powder)

reaction suitability

reagent type: catalyst
core: gallium

density

5.88 g/mL at 25 °C

SMILES string

O=[Ga]O[Ga]=O

InChI

1S/2Ga.3O

InChI key

QZQVBEXLDFYHSR-UHFFFAOYSA-N

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General description

Gallium(III) oxide (Ga2O3) is a wide band gap semiconductor that belongs to a family of transparent semiconducting oxides (TSO). It can form different polymorphs such as α-,β-, γ-, δ-, and ε-. Polycrystalline and nanocrystalline Ga2O3 can be prepared using several methods such as chemical vapor deposition, thermal vaporization, and sublimation, molecular beam epitaxy, melt growth, etc. It is widely used as a functional material in various applications including optoelectronics, chemical sensors, catalysis, semiconductor devices, field-effect transistors, and many others.

Application

Ga2O3 is widely used as a host material for the fabrication of electroluminescent devices. For example, europium-doped Ga2O3 thin films can be used as a light-emitting layer to fabricate an optically transparent electroluminescent device.

Due to its distinct optical and electrical properties like moderate conductivity and high laser damage threshold, Ga2O3 can be used in laser-driven electron accelerators, low-loss plasmonics, and Si-based dielectric laser accelerators.

It can also be used as an effective catalyst for the dehydrogenation of propane to propene.
Starting material for the preparation of Sr2CuGaO3S, an example of a rare square pyramidal gallium.[1]

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
STBL4588
STBK8242
STBK2547
STBJ8092
STBJ4829

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Vladimir N Sigaev et al.
Nanoscale, 5(1), 299-306 (2012-11-21)
Nanoparticles in amorphous oxides are a powerful tool for embedding a wide range of functions in optical glasses, which are still the best solutions in several applications in the ever growing field of photonics. However, the control of the nanoparticle
Naoya Kumagai et al.
Chemical communications (Cambridge, England), 47(6), 1884-1886 (2010-12-07)
Using the Rh(3+) ion (Rh d(6)) in a regular octahedral coordination, which forms fully occupied t(2g)(6) and empty e(g)(0) as a result of ligand-field splitting, we demonstrated that Rh-doped ZnGa(2)O(4) had midgap states created by t(2g)(6) and e(g)(0) that had
Bipin Pandey et al.
Langmuir : the ACS journal of surfaces and colloids, 28(38), 13705-13711 (2012-09-01)
This paper reports the formation of self-organized nanoporous gallium oxide by anodization of solid gallium metal. Because of its low melting point (ca. 30 °C), metallic gallium can be shaped into flexible structures, permitting the fabrication of nanoporous anodic oxide
Baoxiu Zhao et al.
Journal of environmental sciences (China), 24(4), 774-780 (2012-08-17)
Perfluorooctanoic acid (PFOA) is a new-found hazardous persistent organic pollutant, and it is resistant to decomposition by hydroxyl radical (HO*) due to its stable chemical structure and the high electronegativity of fluorine. Photocatalytic reduction of PFOA with beta-Ga2O3 in anoxic
Sr(2)CuGaO(3)S, a Rare Example of Square Pyramidal Gallium.
W. J. Zhu et al.
Inorganic chemistry, 36(17), 3576-3577 (1997-08-13)
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Questions

1–3 of 3 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. 1. β-Ga2O3 powder로 받을 수 있을까요? 2. 받을 수 있는 particle size를 알고 싶습니다.

    1 answer

    1. The particle size of this product has not been determined. This material is assigned an appearance specification of crystalline powder. Please see the link below to review a sample Certificate of Analysis:
      https://www.sigmaaldrich.com/certificates/Graphics/COfAInfo/fluka/pdf/PDF739379.pdf

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