
Interpretation:
The movement of electronsis to be described in a solar battery that uses p-type and n-type semiconductors, during the exposure of solar light.
Concept introduction:
Semiconductors are solids that have a conductivity that lies between that of conductors and insulators.
The gap between theirconduction bands and valence bands is small, so electrons may jump from the valence band to the conduction band.
The addition of very small quantity of an element with one more or one fewer valence electrons than the natural semiconductor is called doping.
The addition of very small quantity of an element that has extra electrons than the natural semiconductor, the electron increases its conductivity and the semiconductor is called n-type semiconductor.
The addition of very small quantity of an element which has fewer valence electrons than the natural semiconductor, creating a hole in semiconductor. These holes increaseits conductivity and the semiconductor is called p-type semiconductor.

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Chapter 12 Solutions
Chemistry
- A mixture of C7H12O2, C9H9OCl, biphenyl and acetone was put together in a gas chromatography tube. Please decide from the GC resutls which correspond to the peak for C7,C9 and biphenyl and explain the reasoning based on GC results. Eliminate unnecessary peaks from Gas Chromatography results.arrow_forwardIs the molecule chiral, meso, or achiral? CI .CH3 H₂C CIarrow_forwardPLEASE HELP ! URGENT!arrow_forward
- Identify priority of the substituents: CH3arrow_forwardHow many chiral carbons are in the molecule? OH F CI Brarrow_forwardA mixture of three compounds Phen-A, Acet-B and Rin-C was analyzed using TLC with 1:9 ethanol: hexane as the mobile phase. The TLC plate showed three spots of R, 0.1 and 0.2 and 0.3. Which of the three compounds (Phen-A; Acet-B or Rin-C) would have the highest (Blank 1), middle (Blank 2) and lowest (Blank 3) spot respectively? 0 CH: 0 CH, 0 H.C OH H.CN OH Acet-B Rin-C phen-A A A <arrow_forward
- Chemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning

