MindMap Gallery Semiconductor Physics Chapter 1
Semiconductor Physics Chapter 1: Electron Energy States in Semiconductors
Edited at 2019-09-29 08:13:00This Valentine's Day brand marketing handbook provides businesses with five practical models, covering everything from creating offline experiences to driving online engagement. Whether you're a shopping mall, restaurant, or online brand, you'll find a suitable strategy: each model includes clear objectives and industry-specific guidelines, helping brands transform traffic into real sales and lasting emotional connections during this romantic season.
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The ice hockey schedule for the Milano Cortina 2026 Winter Olympics, featuring preliminary rounds, quarterfinals, and medal matches for both men's and women's tournaments from February 5–22. All game times are listed in Eastern Standard Time (EST).
This Valentine's Day brand marketing handbook provides businesses with five practical models, covering everything from creating offline experiences to driving online engagement. Whether you're a shopping mall, restaurant, or online brand, you'll find a suitable strategy: each model includes clear objectives and industry-specific guidelines, helping brands transform traffic into real sales and lasting emotional connections during this romantic season.
This Valentine's Day map illustrates love through 30 romantic possibilities, from the vintage charm of "handwritten love letters" to the urban landscape of "rooftop sunsets," from the tactile experience of a "pottery workshop" to the leisurely moments of "wine tasting at a vineyard"—offering a unique sense of occasion for every couple. Whether it's cozy, experiential, or luxurious, love always finds the most fitting expression. May you all find the perfect atmosphere for your love story.
The ice hockey schedule for the Milano Cortina 2026 Winter Olympics, featuring preliminary rounds, quarterfinals, and medal matches for both men's and women's tournaments from February 5–22. All game times are listed in Eastern Standard Time (EST).
Electron energy states in semiconductors
Crystal structure
Characteristics of crystal structure
periodic arrangement
fixed melting point
Single crystal anisotropy
Lattice➕Primitive
lattice
unit cell
Maintain macroscopic symmetry
One or more grid points
primitive cell
Smallest size
subtopic
Primitive
Can have multiple atoms
Crystal orientation and planes
Crystal orientation: []<>
Planes:(){}
energy state of electrons
free electrons
Potential field = 0, wave function, energy continuous
electrons in crystal
Periodic potential field, single electron approximation, bloch wave function
Quasi-free electron approximation
tight binding approximation
square potential well approximation
Band
The corresponding Brillouin zone
Energy bands of conductors, semiconductors and insulators
Movement and effective mass of electrons in crystals
movement of electrons
v;a;F outside
subtopic
Effective mass m*
The meaning of effective quality
Cyclotron Resonance Experiment
isotropic
anisotropy
Impurity and defect energy levels in semiconductors
Impurities
Shallow level impurities
donor impurity
n Donor energy level, impurity ionization ➡Positive center & conducting electrons
Ionization energy calculation ΔED
acceptor impurity
p acceptor energy level, impurity ionization ➡negative center & conductive hole
Ionization energy calculation ΔEA
Impurity compensation
Improve conductivity and change conductivity type
deep level impurities
Form an effective composite center
Impurity concentration
defect
point defect
Dislocation