Polycrystalline Silicon for Research and Development

university wafer substrates

Depositing Ru on Polycrystalline Silicon Wafers

A Phd candidate requested a quote for the following:

I wish to request a quote for 200 nm Ru deposited with 10 nm Ti seed layer on polycrystalline Si wafer (500 um or thicker wafer). I request quote for (1) 6 wafers deposited on 4 in diameter (2) 1 wafer deposited

I am looking for 200 nm Ru deposited with 10 nm Ti seed layer on polycrystalline Si wafer (500 um or thicker wafer).
Either 100 mm diameter or 300 mm diameter is fine.

Reference #272215 for our specs/qty.

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Can You Make Polycrystalline Silicon Batteries?

Polycrystalline Silicon is not commonly used as a material for batteries. However, there are some specialized applications where polycrystalline silicon may be used as an electrode material in batteries.

To make a polycrystalline silicon battery, the following steps can be followed:

  1. Preparation of Polycrystalline Silicon Electrodes: The silicon material is melted and then rapidly cooled to form small, randomly oriented silicon crystals. These crystals are then pressed together to form a compact, polycrystalline silicon electrode.

  2. Electrode Coating: To improve the conductivity and stability of the electrode, it may be coated with a thin layer of metal, such as nickel or gold.

  3. Cell Assembly: The coated polycrystalline silicon electrode is then combined with a cathode material, such as lithium metal or lithium cobalt oxide, and an electrolyte to form a battery cell.

  4. Cell Testing: The completed battery cell is then tested to evaluate its performance and safety, such as its capacity, voltage, and discharge rate.

It is important to note that this is a highly simplified process, and the actual process of making a polycrystalline silicon battery is much more complex and requires specialized expertise and equipment. Additionally, there are many challenges associated with using silicon as an electrode material, such as its low conductivity, high expansion and contraction during cycling, and tendency to degrade over time. As a result, the use of polycrystalline silicon in batteries is still in the research and development stage, and further advances are needed before it can be widely used in commercial applications.