0
Is in p type semiconductors electron hole pair is form at room temperature?
Wiki User
∙ 11y ago
yes, they form in both p & n type at any temperature other than absolute zero (which can't be reached).
Wiki User
∙ 11y ago
In p-type semiconductors, electron-hole pairs can be created at room temperature by thermal excitation. When a hole is created by an electron moving from the valence band to the conduction band, a corresponding electron-hole pair is formed. This process can occur due to energy supplied by thermal vibrations even at room temperature.
Add your answer:
Earn +20 pts
How do you generate electricity using a semiconductor p-n junction?
When light shines on a semiconductor p-n junction, the energy from photons can create electron-hole pairs, generating a potential difference across the junction. This potential difference can create an electric current when connected to an external circuit, allowing for the generation of electricity through the photovoltaic effect.
Why is there a hole in school chairs?
The hole in school chairs is there to provide ventilation and prevent a student's back from getting too hot and sweaty from prolonged sitting. It also allows for easier cleaning and maintenance of the chairs.
What does education was the great equalizer mean?
"Education is the great equalizer" means that providing access to quality education for all individuals can help level the playing field and create more equal opportunities for people regardless of their background or socioeconomic status. It emphasizes the transformative power of education in overcoming barriers and enabling individuals to reach their full potential.
What does not cut out for teaching mean in idiom?
The idiom "not cut out for teaching" means someone who is not suited or well-equipped for a career in teaching due to lack of necessary skills, qualities, or temperament. It implies that the person does not possess the inherent abilities or characteristics required to be successful in a teaching role.
What is the orbital speed of the sun?
The sun orbits around the center of the Milky Way galaxy at an average speed of about 450,000 miles per hour (720,000 kilometers per hour). This orbital speed is influenced by the gravitational pull of the galaxy's massive black hole at the center, as well as the gravitational interactions with other celestial bodies in the galaxy.
What are degenerate and non degenerate semiconductors?
Non degenerate semiconductors are those which: -are lightly doped -have less value of electron and hole concentration -violate Pauli's exclusion principle Degenerate semiconductors are those which: -are highly doped -have high value of electron and hole concentration -follow Pauli's exclusion principle
What has the author A A Rogachev written?
A. A. Rogachev has written: 'Sotsial'noe razvitie sela' 'Trudovye resursy sela: vosproizvodstvo, ispol'zovanie' 'Electron-hole liquids in semiconductors' -- subject(s): Liquid semiconductors
What are p type semiconductors?
P type semiconductors have been doped with trivalent elements, causing them to conduct via "hole" flow. N type semiconductors have been doped with pentavalent elements, causing them to conduct via electron flow.
What roles do free electrons and holes play in intrinsic semiconductor?
Free electrons and holes are the charge carriers-not only in intrinsic semiconductors(these are the purest form of semiconductors-typically as pure as can be made available with the present technology) but also in extrinsic semiconductors(doped semiconductors).In intrinsic semiconductors,electron-hole pairs are created due to the natural processes like-absorption of heat energy from the surroundingsabsorption of energy from photons.this absorbed energy results in breakdown ofcovalant bonds in intrinsic semiconductors as a result of which electron-hole pairs are created.It is this electron hole pair which is responsible for carrying the current through the intrinsic semiconductor when a potential difference is applied across it.In extrinsic semiconductor the case is slightly different-here, we have-majority charge carriers and minority charge carriers.in an n-type semiconductor-majority charge carriers are the electrons contributed by the pentavalent impurities while the minority charge carriers are the holes which are generated as electron-hole pairs due to natural processes discussed above.in p-type semiconductor-majority charge carriers are the holes contributed by trivalent impuritieswhereas the minority charge carriers are the electronswhich are generated as electron-hole pairs due to natural processes discussed above.these are the majority charge carriers which contribute heavily in the flow of current through the extrinsic semiconductors than the minority charge carriers.I suggest you to please go through mass action law and law of electrical neutrality of semiconductors for better understanding.
What is M.U.?
mu is the mobility(electrons or holes ) of the current carriers in the semiconductors. mu-e being electron mobility and mu-a being the hole mobility.
How the hole moves?
A hole is a place where an electron is missing. If an electron moves into that places, the electron will be missing somewhere else - the hole has moved along.A hole is a place where an electron is missing. If an electron moves into that places, the electron will be missing somewhere else - the hole has moved along.A hole is a place where an electron is missing. If an electron moves into that places, the electron will be missing somewhere else - the hole has moved along.A hole is a place where an electron is missing. If an electron moves into that places, the electron will be missing somewhere else - the hole has moved along.
Where does the ozone hole form over?
The ozone hole forms over Antarctica. It is because of low temperature.
What is need to study about hole curren when there is actually electron current which is involved?
actually it is the holes which lead to the movement of the electron,as electron moves to the hole's place creating a hole behind.
Why hole has positive charge?
A hole is a place where an electron is missing. Since the electron has a negative charge, the lack of an electron produces a net positive charge.
When an electron is displaced in a semiconductor the hole thats left behind is what?
When an electron is displaced in a semiconductor, the hole that is left behind is called an electron hole. Energy can still be conducted because other electrons can and do jump to the space left by a displaced electron.
When an electron is displaced in a semiconductor the hole that left behind is?
A lack of electron
What is recombination in electronics?
Process by which a conduction band electron gives up energy (in the form of heat or light) and falls into a valence band hole.
