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/418/501/product-dating-information-06-25-mk.pdf
646687
Silicon
wafer (single side polished), <100>, N-type, contains no dopant, diam. × thickness 2 in. × 0.5 mm
Sustainability features
Synonym(s):
Silicon element
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
1 ea | Available to ship TODAY | $248.00 |
5 ea | Available to ship TODAY | $1,080.00 |
About This Item
$248.00
Available to ship TODAYDetails
Quality Segment
form
crystalline (cubic (a = 5.4037)), wafer (single side polished)
does not contain
dopant
sustainability
Sustainability features
diam. × thickness
2 in. × 0.5 mm
matrix
Silicon base material
bp
2355 °C (lit.)
mp
1410 °C (lit.)
density
2.33 g/mL at 25 °C (lit.)
semiconductor properties
<100>, N-type
SMILES string
[Si]
InChI
1S/Si
InChI key
XUIMIQQOPSSXEZ-UHFFFAOYSA-N
General description
Application
- Innovative Solutions for High-Performance Silicon Anodes in Lithium-Ion Batteries: Overcoming Challenges and Real-World Applications.: This article addresses the challenges and real-world applications of high-performance silicon anodes in lithium-ion batteries, presenting innovative solutions to enhance their efficiency (Khan et al., 2024).
- Strain Engineering: Perfecting Freestanding Perovskite Oxide Fabrication.: This research focuses on strain engineering to improve the fabrication of freestanding perovskite oxides, which are crucial for various high-purity silicon applications in academia (Yun et al., 2024).
1 of 1
This Item | |||
|---|---|---|---|
| description wafer (single side polished), <100>, N-type, contains no dopant, diam. × thickness 2 in. × 0.5 mm | description nanoparticles, 40 nm avg. part. size, ≥99% trace metals basis | description disks, 13mm, thickness 0.38mm, single crystal, 100% | description disks, 15.9mm, thickness 0.38mm, single crystal, n-type, 100% |
| form crystalline (cubic (a = 5.4037)), wafer (single side polished) | form nanoparticles, powder or crystals | form foil | form foil |
| matrix Silicon base material | matrix - | matrix - | matrix - |
| bp 2355 °C (lit.) | bp 2355 °C (lit.) | bp 2355 °C (lit.) | bp 2355 °C (lit.) |
| density 2.33 g/mL at 25 °C (lit.) | density 2.33 g/mL at 25 °C (lit.) | density 2.33 g/mL at 25 °C (lit.) | density 2.33 g/mL at 25 °C (lit.) |
| Quality Level 100 | Quality Level 100 | Quality Level - | Quality Level - |
| mp 1410 °C (lit.) | mp 1410 °C (lit.) | mp 1410 °C (lit.) | mp 1410 °C (lit.) |
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Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
PPE (personal protective equipment)
Eyeshields, Gloves, type N95 (US)
Storage Class
11 - Combustible Solids
WGK
nwg
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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Oxygen content: ≤ 1~1.8 x 1018 /cm3; Carbon content: ≤ 5 x 1016 /cm3 seems very large amounts for a FZ sample. have oxygen and carbon being introduced on purpouse? have the sample received a thermal annealing proccess? if so, what T?
1 answer-
There is no process for intentionally introducing oxygen and carbon into this silicon wafer. The oxygen and carbon content are not tested for this product.
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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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Bonjour, quelle est la signification d'un type N si il n'a pas pas de dopant ?
1 answer-
The Si wafer 646687 contains impurities even it is un-doped. So it could be N type.
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Do the 2" Si wafers come with a flat or not?
1 answer-
The silicon wafers have 2 flats <110><110>.
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