Which diode is better silicon or germanium?
Which diode is better silicon or germanium?
In present, Silicon is preferred over Germanium for semiconductor. Why is Silicon preferred over Germanium for semiconductor? The reason is, Silicon can be worked at a higher temperature as compared to germanium. The structure of Germanium crystals will be destroyed at higher temperature.
What is an advantage of a germanium diode over silicon?
However, the germanium diode has one major advantage over Si. Ge has higher electron and hole mobility and because of this Ge devices can function up to a higher frequency than Si devices. The germanium diode is also superior to silicon diode in terms of energy loss, current loss, etc.
What is the difference between silicon and germanium?
Silicon and germanium have four valence electrons but at the given temperature germanium will have more free electrons and higher conductivity than silicon. Silicon is more widely used in the electronic device than germanium since it can be used at a higher temperature.
How can you tell if a germanium diode is silicon?
How can I tell if I have a Ge or Si diode? You can easily distinguish Silicon and Germanium Diodes. Silicon diodes should read approx 0.7V and Germanium diodes should read 0.3V.
What is a germanium diode used for?
They are, by far, the most common type of diode used in electronics. Germanium diodes are made from germanium. They used to be used a lot in early electronics, such as radios, but they have largely been replaced by silicon diodes….Germanium Diode Circuit.
| Voltage Drops Across Diode at Various Supplied Voltages | ||
|---|---|---|
| 15V | 0.27V | 0.70V |
What are the disadvantages of germanium?
Germanium has disadvantages in addition to the need for cooling: energy resolution is sensitive to radiation damage (a feature common to all semiconductor diode-type detectors) and efficiency is low for higher energy gamma rays.
Why is germanium a better conductor than silicon?
Ge has energy band gap of 0.72ev and Si has energy band gap of 1.12ev. So Ge has higher conductivity. Answer: Germanium has lower energy band gap than that of the silicon.
Why do we use germanium diode?
In addition to its applications in electronic devices, germanium is used as a component of alloys and in phosphors for fluorescent lamps. Because germanium is transparent to infrared radiation, it is employed in equipment used for detecting and measuring such radiation, such as windows and lenses.
