Electron–hole pair and motion of a holeइलेक्ट्रॉन–होल युग्म और होल की गतिElectron–hole pair and motion of a hole
NCERT Fig 14.5 · Class 12 Physics · Chapter 14 · interactive diagram
Read Chapter 14 with this diagramइस डायग्राम के साथ अध्याय 14 पढ़ेंIs diagram ke saath Ch 14 padhiyeAll Physics diagramsसभी भौतिकी डायग्रामSaare Physics diagrams
Parts and what they mean
- (a) Hole at site 1 ((a) स्थल 1 पर होल) — Thermal energy breaks a bond. The vacancy left behind has an effective charge +q and is called a hole.
- Free (conduction) electron, charge −q (मुक्त (चालन) इलेक्ट्रॉन, आवेश −q) — It moves independently through the crystal and gives the electron current Ie in an electric field.
- (b) Bound electron jumps from site 2 to site 1 ((b) बँधा इलेक्ट्रॉन स्थल 2 से स्थल 1 पर कूदता है) — An electron from a neighbouring covalent bond fills the vacancy. The free electron of (a) takes no part in this.
- Hole now at site 2 (अब होल स्थल 2 पर) — So the hole has apparently moved from 1 to 2. In a field holes drift towards the negative potential, giving the hole current Ih; total I = Ie + Ih.
- Covalent bond (सहसंयोजक आबंध) — Two shared electrons.
- +4 core (+4 क्रोड) — Si or Ge inner core.
Original diagram drawn by Simple Learning Hub, based on NCERT Fig 14.5. Report a mistake