On conversion of luminescence into absorption and the van Roosbroeck-Shockley relation
Mesoscale and Nanoscale Physics
2015-06-05 v1 Other Condensed Matter
Abstract
The problem of conversion of experimentally measured luminescence spectrum into the absorption cross section is revisited. The common practice of using the van Roosbroeck-Shockley (or Kubo-Martin-Schwinger or Kennard-Stepanov) relation in this context is incorrect because luminescence from semiconductors is essentially all due to the spontaneous emission component of the recombination of carriers distributed far-from-equilibrium. A simple, physically consistent, and practical prescription for converting the luminescence spectra into absorption is presented and its relation to the so-called nonequilibrium generalization of the van Roosbroeck-Shockley relationship is discussed.
Keywords
Cite
@article{arxiv.1205.4405,
title = {On conversion of luminescence into absorption and the van Roosbroeck-Shockley relation},
author = {Rupak Bhattacharya and Bipul Pal and Bhavtosh Bansal},
journal= {arXiv preprint arXiv:1205.4405},
year = {2015}
}
Comments
3 pages, 2 figures