Semiconductor materials are the key to operating devices and technologies that we use in our daily life-from smartphones and laptops to solar panels and LED lighting. This article will take you into the depths of semiconductor materials-from their properties, types, applications, and advantages. Types such as intrinsic and extrinsic property of the type and its applications in electronics, solar cells, LED lighting, medical devices, automotive industry, telecommunications, defense, and aerospace. The advantages of using semiconductor materials, include high efficiency, low power consumption, compact size, versatility, and durability.
What are Materials?
Semiconductor materials are vital in fabricating electronic devices, mainly integrated circuits, which provide the basis for contemporary technology and be the drive for innovation in the semiconductor industry. Such materials possess their unique electrical behavior by which they become suitable for integrated circuit designing to miniaturize electronic components and manufacture very sophisticated electronic devices. Modern ongoing developments in semiconductor materials have also allowed installments of better performances, efficiencies, and reduced power consumption for electronic devices, contributing to the ever-moving development of the semiconductor industry.
Chemicals Used
In semiconductor materials, atoms belong to a combination of group III & V or either group IV or combinations of group II & VI, containing different groups from the periodic table. Various semiconductors have been elaborately drawn with different material sources from different groups in the periodic table. And properties of the semiconductors vary from one semiconductor to another.
Silicon (Si) is a group IV element in the periodic table and one of the most commonly used materials as a semiconductor because it virtually forms the base of ICs or integrated circuits. Consequently, most solar cells are Si (Silicon) based. The below figure shows semiconductor materials under the periodic table. Above figure shows a section of a periodic table indicating common semiconductor materials. Typically, a semiconductor exists as a single element like silicon, germanium, or a compound like GaAs, CdTe/InP, or as an alloy like AlGaAs/SiGe.
New Innovative Materials
- High-power gallium nitride material for ultra-rapid power conversions; perfect in electric grid systems as it has the maximum critical energy field.
- Antimonide-and bismuthide-based semiconductors are now penetrating the enhanced military-infrared sensor into the medical domain.
- Graphene material is likely to outperform silicon and could become a truly universal semiconductor material.
- The pyrite will enable transforming the earthly cadmium telluride for the use in solar cells though they are in scarce supply. Thus, pyrite is abundant, inexpensive, and nontoxic.
Applications
These materials are mainly used for switching, energy conversion, and amplification, sensors, etc. Commonly made components and products with semiconductor materials include diodes, field-effect transistors, integrated circuits, junction field-effect transistors, bipolar transistors, LEDs (light-emitting diode), MOSFETs (metal-oxide-semiconductor FETs), SCR (silicon-controlled rectifiers), etc. These semiconductor materials are used for different components in almost all major industries of electronic devices, and they are so important that different industrial sectors rely on semiconductor materials such as energy, artificial intelligence, communication, clean energy, military, health care, computing & the Internet of Things.
The energy band gap of silicon establishes it as the most commonly preferred semiconductor material for electronic fabrication. With a value of 0.7 eV, the band energy gap of silicon leads to a generation thermally smaller number of pairs. It is easily available in nature and produces less noise while the formation of SiO2 is also quite easy.
