Which semiconductor compounds can indium form with Group 15 elements?

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Indium, a member of the boron group, forms several binary compounds with Group 15 (nitrogen group) elements that exhibit semiconductor properties. These compounds are classified as III-V semiconductors, referring to the combination of elements from Group 13 and Group 15 of the periodic table.12

The specific semiconductor compounds formed by indium with Group 15 elements include:

  • Indium nitride (InN)1
  • Indium phosphide (InP)1
  • Indium arsenide (InAs)1
  • Indium antimonide (InSb)13

These materials are significant in modern technology; for instance, indium nitride nanorods are utilized in high-speed field-effect transistors and light-emitting diodes (LEDs). Additionally, indium antimonide is recognized as a photosensitive material frequently employed in infrared photodetectors.13