dorsal/arxiv
View SchemaThe Pedagogy of the p-n Junction: Diffusion or Drift?
| Authors | S. O. Kasap, C. Tannous |
|---|---|
| Categories | |
| ArXiv ID | physics/0306153 |
| URL | https://arxiv.org/abs/physics/0306153 |
Abstract
The majority of current textbooks on device physics at the undergraduate level derive the diode equation based on the diffusion of injected minority carriers. Generally the drift of the majority carriers, or the extent of drift, is not discussed and the importance of drift in the presence of a field in the neutral regions is almost totally ignored. The assumptions of zero field in the neutral regions and conduction by minority carrier diffusion lead to a number of pedagogical problems and paradoxes for the student. The purpose of this paper is to address the pedagogical problems and paradoxes apparent in the current treatment of conduction in the pn junction as it appears in the majority of texts.
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"abstract": "The majority of current textbooks on device physics at the undergraduate\nlevel derive the diode equation based on the diffusion of injected minority\ncarriers. Generally the drift of the majority carriers, or the extent of drift,\nis not discussed and the importance of drift in the presence of a field in the\nneutral regions is almost totally ignored. The assumptions of zero field in the\nneutral regions and conduction by minority carrier diffusion lead to a number\nof pedagogical problems and paradoxes for the student. The purpose of this\npaper is to address the pedagogical problems and paradoxes apparent in the\ncurrent treatment of conduction in the pn junction as it appears in the\nmajority of texts.",
"arxiv_id": "physics/0306153",
"authors": [
"S. O. Kasap",
"C. Tannous"
],
"categories": [
"physics.ed-ph",
"physics.gen-ph"
],
"title": "The Pedagogy of the p-n Junction: Diffusion or Drift?",
"url": "https://arxiv.org/abs/physics/0306153"
},
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