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重要文件

900708

Sigma-Aldrich

石墨烯量子点

blue luminescent, 1 mg/mL in H2O

同義詞:

GQD

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About This Item

CAS號碼:
7440-44-0
分類程式碼代碼:
12352200
暫時無法取得訂價和供貨情況

描述

topographic height: 1-2.0 nm

形狀

suspension

濃度

1 mg/mL in H2O

顏色

colorless

直徑

<5 nm

螢光

λex 350 nm; λem 445 nm FWHM 65 nm, quantum yield >65%

InChI

1S/C

InChI 密鑰

OKTJSMMVPCPJKN-UHFFFAOYSA-N

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一般說明

石墨烯量子点（GQDs）是横向尺寸小于100 nm的少层石墨烯片，具有强大的量子限制和边缘效应。因此，它们具有独特的物理性质，如强光致发光，可通过控制其尺寸、形状、缺陷和功能而针对特定应用进行定制。与经典的QD（如金属或硅量子点）相比，GQD具有生物相容性、光稳定性并且继承了石墨烯出色的热力性质、电性质和机械性能。这些特性极大促进了各种最先进的应用：
  • 荧光增白剂。
  • 安全应用的标志物。
  • 生物成像标记。
  • 荧光聚合物。
  • 抗菌、抗生物污染、消毒系统。
  • 重金属、湿度和压力传感器。
  • 电池。
  • 闪存设备。
  • 光电设备。
  • 发光二极管。

儲存類別代碼

12 - Non Combustible Liquids

水污染物質分類（WGK）

nwg

閃點（°F）

Not applicable

閃點（°C）

Not applicable

從最近期的版本中選擇一個：

分析證明 (COA)

Lot/Batch Number
MKCR2226
MKCQ2322
MKCN8390
MKCM2748
MKCK8189

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文章

Graphene Quantum Dots: Properties, Synthesis & Applications

Properties, synthesis & applications of Graphene Quantum Dots explained. GQDs have advantages of nontoxicity, good solubility, stable photoluminescence & better surface grafting.

石墨烯量子點：特性、合成與應用

石墨烯量子點的特性、合成與應用說明。GQDs 具有無毒、溶解性佳、光發光穩定及表面接枝性佳等優點。

Synthesis and Applications of Graphene Nanoribbons Synthesized

Graphene nanoribbons (GNRs) are quasi-one-dimensional narrow strips of graphene comprised of sp2-hybridized carbon atoms arranged into hexagonal honeycomb lattice configurations.

Perovskite Quantum Dots Synthesis

Perovskite quantum dots research progresses overcoming challenges, enabling rapid development of light-emitting devices.

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

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    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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  2. 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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