Why group III and group V elements are used for manufacturing LED’s?
Answers
Answer:
These so-called III-V compounds are used to make semiconductor devices that emit light efficiently or that operate at exceptionally high frequencies. ... bonding is typical of the III–V semiconductors—i.e., those consisting of one element from the third column of the periodic table and one from the fifth column.
Answer:
These so-called III-V compounds are used to make semiconductor devices that emit light efficiently or that operate at exceptionally high frequencies.
Explanation:
The one sentence solution is "due to the number of valence electrons factors of group III & institution V own". To make clear, we ought to evaluation right short an overarching fact — one which is probably rudimentary to you — however that unites the overall concept of semiconductor doping. In that spirit, consider that the Periodic table possesses a incredible organizational scheme in step with which factors of a common group (or, "column") of the Periodic table are grouped (no pun intended) by using their comparable chemical houses. The most essential of those is the wide variety of valence electrons. likely the single most handy function of the desk is that we know, just with the aid of locating an detail's group number, what number of valence electrons it as. for instance, hydrogen and the Alkali Metals all have a single valence electron, the Alkaline Earth Metals have , the institution III factors have... look forward to it... 3, and so on and so forth. because electrons mediate chemical reactions, grouping factors through the variety of electrons of their floor kingdom valence shell is the unmarried maximum powerful way of organization while what we're interested by is comparable chemical conduct.
Sidenote: The Octet Rule, you can remember, is for all realistic purposes, a principle to which the chemical bonding for all genuinely all elements via length 3 of the Periodic desk is sure. With this in thoughts, it can appear affordable to rationalize that the tetravalency (that is, a kingdom of valence of 4) of carbon/silicon makes them neither decidedly electronegative nor decidedly electropositive. this selection makes them properly-acceptable as a base material for semiconductors; every other important one is that both factors are amenable to concatenation (i.e., the formation of extended network solids), although that is truly just again a result of their tetravalence.
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