Silicon (Si): Advantages and Disadvantages

This page explores the pros and cons of using Silicon (Si). It outlines the benefits and drawbacks associated with this widely used element.

What is Silicon (Si)?

Introduction:

• Silicon is a chemical element represented by the symbol Si.
• It has an atomic number of 14.
• Silicon (Si) is a tetravalent metalloid and a semiconductor. It’s known for being a hard, brittle crystalline solid with a blue-grey metallic sheen.
• It’s the 8th most common element in the universe by mass.
• Silicon is found in various forms, including Silicon (Si) dioxide (silica) and silicate.
• It’s the 2nd most abundant element in the Earth’s crust, following oxygen.
• Silicon (Si) is often used commercially without extensive processing of its natural mineral forms.
• It’s an indirect gap semiconductor with an energy gap of 1.12 eV.

Benefits or Advantages of Silicon (Si)

Here are the key benefits and advantages of using Silicon (Si):

• As mentioned earlier, it’s the second most abundant element on Earth, making it readily available.
• It’s relatively inexpensive due to the well-established processing techniques used in its production.
• There’s a large and robust market for crystalline Silicon (Si).
• It offers high efficiency in various applications.
• Its hardness allows for the safe handling of large wafers without causing damage.
• It’s thermally stable up to 1100°C.

Drawbacks or Disadvantages of Silicon (Si)

Here are the downsides to using Silicon (Si):

• It requires a thick layer (crystalline form).
• It’s brittle, making it susceptible to cracking or breaking.
• It has limited substrate options.
• Producing Silicon (Si) crystals can be expensive.
• Some processing methods can be wasteful.
• It has relatively short life cycles in certain applications.
• The manufacturing process involves the use and production of toxic substances.