Multiple choice

Which of the following is used for construction of infrared detectors?

  1. Hypochlorous acid

  2. Hypophosphorous acid

  3. Indium antimonide

  4. Indium arsenide

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Indium arsenide is a semiconductor material. It has the appearance of grey cubic crystals with a melting point 942 °C. Indium arsenide is used for construction of infrared detectors, for the wavelength range of 1-3.8 µm. The detectors are usually photovoltaic photodiodes.