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Where does the labelling of extrinsic semiconductors as “n” and “p” come from?


Where did the concept of energy come from?Where does the reverse current come from in a organic semiconducting diode?Where do Newton's laws come from?Where do Maxwell's equations come from?semiconductors extrinsic and intrinsic carriers concentrations equationsWhere does the lowered effective mass of electrons come from?Where does the factor of half come from, boltzmann distribution for bandgap energyMass-Action LawWhere does the proportionality symbol originate from?Where did the concept of field come from?













2












$begingroup$


The naming of doped semiconductors as "n-type" (for donor-doped) and "p-type" (for acceptor-doped) is ubiquitous. But I am having a hard time digging up where this naming tradition comes from and how it has come to be so widely accepted. From my perspective, there is nothing intuitive about this choice of notation. Henceforth the question:



Where does the tradition of labelling donor-doped extrinsic semiconductors as "n" and acceptor-doped as "p" come from?










share|cite|improve this question









$endgroup$











  • $begingroup$
    Simple - n for negative, p for positive
    $endgroup$
    – Nilay Ghosh
    Apr 28 at 19:13















2












$begingroup$


The naming of doped semiconductors as "n-type" (for donor-doped) and "p-type" (for acceptor-doped) is ubiquitous. But I am having a hard time digging up where this naming tradition comes from and how it has come to be so widely accepted. From my perspective, there is nothing intuitive about this choice of notation. Henceforth the question:



Where does the tradition of labelling donor-doped extrinsic semiconductors as "n" and acceptor-doped as "p" come from?










share|cite|improve this question









$endgroup$











  • $begingroup$
    Simple - n for negative, p for positive
    $endgroup$
    – Nilay Ghosh
    Apr 28 at 19:13













2












2








2





$begingroup$


The naming of doped semiconductors as "n-type" (for donor-doped) and "p-type" (for acceptor-doped) is ubiquitous. But I am having a hard time digging up where this naming tradition comes from and how it has come to be so widely accepted. From my perspective, there is nothing intuitive about this choice of notation. Henceforth the question:



Where does the tradition of labelling donor-doped extrinsic semiconductors as "n" and acceptor-doped as "p" come from?










share|cite|improve this question









$endgroup$




The naming of doped semiconductors as "n-type" (for donor-doped) and "p-type" (for acceptor-doped) is ubiquitous. But I am having a hard time digging up where this naming tradition comes from and how it has come to be so widely accepted. From my perspective, there is nothing intuitive about this choice of notation. Henceforth the question:



Where does the tradition of labelling donor-doped extrinsic semiconductors as "n" and acceptor-doped as "p" come from?







semiconductor-physics history






share|cite|improve this question













share|cite|improve this question











share|cite|improve this question




share|cite|improve this question










asked Apr 28 at 18:03









Ignat InsarovIgnat Insarov

1163




1163











  • $begingroup$
    Simple - n for negative, p for positive
    $endgroup$
    – Nilay Ghosh
    Apr 28 at 19:13
















  • $begingroup$
    Simple - n for negative, p for positive
    $endgroup$
    – Nilay Ghosh
    Apr 28 at 19:13















$begingroup$
Simple - n for negative, p for positive
$endgroup$
– Nilay Ghosh
Apr 28 at 19:13




$begingroup$
Simple - n for negative, p for positive
$endgroup$
– Nilay Ghosh
Apr 28 at 19:13










2 Answers
2






active

oldest

votes


















5












$begingroup$

I want to supplement Eagle's answer.
Long before people deliberately doped semiconductors, physicists were studying samples of crystalline germanium.
While playing with these crystals, some seemed to act as if they had a few n or negative carriers in them, and others seemed to have p or positive carriers in them.
At first it was not understood why they behaved this way, and the naming convention long predates their use in electronics.






share|cite|improve this answer











$endgroup$








  • 1




    $begingroup$
    So I should understand those germanium crystals were rather impure?
    $endgroup$
    – Ignat Insarov
    Apr 28 at 18:40










  • $begingroup$
    Actually, can you refer me to the records of those early experiments?
    $endgroup$
    – Ignat Insarov
    Apr 28 at 18:58










  • $begingroup$
    I actually read this in an old article in the physical review (before it branched apart) I will try to find a reference ...
    $endgroup$
    – Paul Young
    Apr 29 at 3:41










  • $begingroup$
    djena.engineering.cornell.edu/hws/history_of_semiconductors.pdf Start with the first reference
    $endgroup$
    – Paul Young
    Apr 29 at 3:51







  • 1




    $begingroup$
    And, yes, these early crystals were impure. Figuring out that the impurities were responsible for the conductivity was a huge step forward.
    $endgroup$
    – Paul Young
    Apr 29 at 14:57


















6












$begingroup$

For semiconductors, n-type mainly refers to Negative electrons which are the major charge carriers, whereas p-type refers to Positive, indicating holes which are the majority charge carriers (in this case), and can be thought of as positive.



In short, it tells us about the majority charge carriers in a particular type of semiconductor.






share|cite|improve this answer









$endgroup$













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    2 Answers
    2






    active

    oldest

    votes








    2 Answers
    2






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    5












    $begingroup$

    I want to supplement Eagle's answer.
    Long before people deliberately doped semiconductors, physicists were studying samples of crystalline germanium.
    While playing with these crystals, some seemed to act as if they had a few n or negative carriers in them, and others seemed to have p or positive carriers in them.
    At first it was not understood why they behaved this way, and the naming convention long predates their use in electronics.






    share|cite|improve this answer











    $endgroup$








    • 1




      $begingroup$
      So I should understand those germanium crystals were rather impure?
      $endgroup$
      – Ignat Insarov
      Apr 28 at 18:40










    • $begingroup$
      Actually, can you refer me to the records of those early experiments?
      $endgroup$
      – Ignat Insarov
      Apr 28 at 18:58










    • $begingroup$
      I actually read this in an old article in the physical review (before it branched apart) I will try to find a reference ...
      $endgroup$
      – Paul Young
      Apr 29 at 3:41










    • $begingroup$
      djena.engineering.cornell.edu/hws/history_of_semiconductors.pdf Start with the first reference
      $endgroup$
      – Paul Young
      Apr 29 at 3:51







    • 1




      $begingroup$
      And, yes, these early crystals were impure. Figuring out that the impurities were responsible for the conductivity was a huge step forward.
      $endgroup$
      – Paul Young
      Apr 29 at 14:57















    5












    $begingroup$

    I want to supplement Eagle's answer.
    Long before people deliberately doped semiconductors, physicists were studying samples of crystalline germanium.
    While playing with these crystals, some seemed to act as if they had a few n or negative carriers in them, and others seemed to have p or positive carriers in them.
    At first it was not understood why they behaved this way, and the naming convention long predates their use in electronics.






    share|cite|improve this answer











    $endgroup$








    • 1




      $begingroup$
      So I should understand those germanium crystals were rather impure?
      $endgroup$
      – Ignat Insarov
      Apr 28 at 18:40










    • $begingroup$
      Actually, can you refer me to the records of those early experiments?
      $endgroup$
      – Ignat Insarov
      Apr 28 at 18:58










    • $begingroup$
      I actually read this in an old article in the physical review (before it branched apart) I will try to find a reference ...
      $endgroup$
      – Paul Young
      Apr 29 at 3:41










    • $begingroup$
      djena.engineering.cornell.edu/hws/history_of_semiconductors.pdf Start with the first reference
      $endgroup$
      – Paul Young
      Apr 29 at 3:51







    • 1




      $begingroup$
      And, yes, these early crystals were impure. Figuring out that the impurities were responsible for the conductivity was a huge step forward.
      $endgroup$
      – Paul Young
      Apr 29 at 14:57













    5












    5








    5





    $begingroup$

    I want to supplement Eagle's answer.
    Long before people deliberately doped semiconductors, physicists were studying samples of crystalline germanium.
    While playing with these crystals, some seemed to act as if they had a few n or negative carriers in them, and others seemed to have p or positive carriers in them.
    At first it was not understood why they behaved this way, and the naming convention long predates their use in electronics.






    share|cite|improve this answer











    $endgroup$



    I want to supplement Eagle's answer.
    Long before people deliberately doped semiconductors, physicists were studying samples of crystalline germanium.
    While playing with these crystals, some seemed to act as if they had a few n or negative carriers in them, and others seemed to have p or positive carriers in them.
    At first it was not understood why they behaved this way, and the naming convention long predates their use in electronics.







    share|cite|improve this answer














    share|cite|improve this answer



    share|cite|improve this answer








    edited Apr 29 at 19:15

























    answered Apr 28 at 18:28









    Paul YoungPaul Young

    1,683421




    1,683421







    • 1




      $begingroup$
      So I should understand those germanium crystals were rather impure?
      $endgroup$
      – Ignat Insarov
      Apr 28 at 18:40










    • $begingroup$
      Actually, can you refer me to the records of those early experiments?
      $endgroup$
      – Ignat Insarov
      Apr 28 at 18:58










    • $begingroup$
      I actually read this in an old article in the physical review (before it branched apart) I will try to find a reference ...
      $endgroup$
      – Paul Young
      Apr 29 at 3:41










    • $begingroup$
      djena.engineering.cornell.edu/hws/history_of_semiconductors.pdf Start with the first reference
      $endgroup$
      – Paul Young
      Apr 29 at 3:51







    • 1




      $begingroup$
      And, yes, these early crystals were impure. Figuring out that the impurities were responsible for the conductivity was a huge step forward.
      $endgroup$
      – Paul Young
      Apr 29 at 14:57












    • 1




      $begingroup$
      So I should understand those germanium crystals were rather impure?
      $endgroup$
      – Ignat Insarov
      Apr 28 at 18:40










    • $begingroup$
      Actually, can you refer me to the records of those early experiments?
      $endgroup$
      – Ignat Insarov
      Apr 28 at 18:58










    • $begingroup$
      I actually read this in an old article in the physical review (before it branched apart) I will try to find a reference ...
      $endgroup$
      – Paul Young
      Apr 29 at 3:41










    • $begingroup$
      djena.engineering.cornell.edu/hws/history_of_semiconductors.pdf Start with the first reference
      $endgroup$
      – Paul Young
      Apr 29 at 3:51







    • 1




      $begingroup$
      And, yes, these early crystals were impure. Figuring out that the impurities were responsible for the conductivity was a huge step forward.
      $endgroup$
      – Paul Young
      Apr 29 at 14:57







    1




    1




    $begingroup$
    So I should understand those germanium crystals were rather impure?
    $endgroup$
    – Ignat Insarov
    Apr 28 at 18:40




    $begingroup$
    So I should understand those germanium crystals were rather impure?
    $endgroup$
    – Ignat Insarov
    Apr 28 at 18:40












    $begingroup$
    Actually, can you refer me to the records of those early experiments?
    $endgroup$
    – Ignat Insarov
    Apr 28 at 18:58




    $begingroup$
    Actually, can you refer me to the records of those early experiments?
    $endgroup$
    – Ignat Insarov
    Apr 28 at 18:58












    $begingroup$
    I actually read this in an old article in the physical review (before it branched apart) I will try to find a reference ...
    $endgroup$
    – Paul Young
    Apr 29 at 3:41




    $begingroup$
    I actually read this in an old article in the physical review (before it branched apart) I will try to find a reference ...
    $endgroup$
    – Paul Young
    Apr 29 at 3:41












    $begingroup$
    djena.engineering.cornell.edu/hws/history_of_semiconductors.pdf Start with the first reference
    $endgroup$
    – Paul Young
    Apr 29 at 3:51





    $begingroup$
    djena.engineering.cornell.edu/hws/history_of_semiconductors.pdf Start with the first reference
    $endgroup$
    – Paul Young
    Apr 29 at 3:51





    1




    1




    $begingroup$
    And, yes, these early crystals were impure. Figuring out that the impurities were responsible for the conductivity was a huge step forward.
    $endgroup$
    – Paul Young
    Apr 29 at 14:57




    $begingroup$
    And, yes, these early crystals were impure. Figuring out that the impurities were responsible for the conductivity was a huge step forward.
    $endgroup$
    – Paul Young
    Apr 29 at 14:57











    6












    $begingroup$

    For semiconductors, n-type mainly refers to Negative electrons which are the major charge carriers, whereas p-type refers to Positive, indicating holes which are the majority charge carriers (in this case), and can be thought of as positive.



    In short, it tells us about the majority charge carriers in a particular type of semiconductor.






    share|cite|improve this answer









    $endgroup$

















      6












      $begingroup$

      For semiconductors, n-type mainly refers to Negative electrons which are the major charge carriers, whereas p-type refers to Positive, indicating holes which are the majority charge carriers (in this case), and can be thought of as positive.



      In short, it tells us about the majority charge carriers in a particular type of semiconductor.






      share|cite|improve this answer









      $endgroup$















        6












        6








        6





        $begingroup$

        For semiconductors, n-type mainly refers to Negative electrons which are the major charge carriers, whereas p-type refers to Positive, indicating holes which are the majority charge carriers (in this case), and can be thought of as positive.



        In short, it tells us about the majority charge carriers in a particular type of semiconductor.






        share|cite|improve this answer









        $endgroup$



        For semiconductors, n-type mainly refers to Negative electrons which are the major charge carriers, whereas p-type refers to Positive, indicating holes which are the majority charge carriers (in this case), and can be thought of as positive.



        In short, it tells us about the majority charge carriers in a particular type of semiconductor.







        share|cite|improve this answer












        share|cite|improve this answer



        share|cite|improve this answer










        answered Apr 28 at 18:07









        EagleEagle

        4091418




        4091418



























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