8. pn-Junctions

  1. C. Julian Chen

Published Online: 11 AUG 2011

DOI: 10.1002/9781118172841.ch8

Physics of Solar Energy

Physics of Solar Energy

How to Cite

Chen, C. J. (2011) pn-Junctions, in Physics of Solar Energy, John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9781118172841.ch8

Author Information

  1. Department of Applied Physics and Applied Mathematics, Columbia University, USA

Publication History

  1. Published Online: 11 AUG 2011
  2. Published Print: 6 JUL 2011

ISBN Information

Print ISBN: 9780470647806

Online ISBN: 9781118172841



  • pn-junction - electron–hole pair, storing substantial portion of photon energy;
  • intrinsic semiconductors - thermal excitation, electrons forming electron–hole pairs;
  • p-type and n-type semiconductors - conductivity, depending on type and concentration of impurities;
  • pn-junction analysis, applying a positive bias voltage - connecting positive terminal of battery to p-side and negative terminal to n-side;
  • bias voltage effect, in a pn-junction at equilibrium without external bias - diffusion current and drift current canceling each other


This chapter contains sections titled:

  • Semiconductors

  • Formation of a pn-Junction

  • Analysis of pn-Junctions

  • Problems