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Diffusion length and resistivity distribution characteristics of silicon wafer by photoluminescence

  • Sungkyunkwan University

Research output: Contribution to journalArticlepeer-review

Abstract

Photoluminescence is a convenient, contactless method to characterize semiconductors. Its use for room-temperature silicon characterization has only recently been implemented. We have developed the PL efficiency theory as a function of substrate doping densities, bulk trap density, photon flux density, and reflectance and compared it with experimental data initially for bulk Si wafers. New developed PL intensity ratio method is able to predict the silicon wafer properties, such as doping densities, minority carrier diffusion length and bulk trap density.

Original languageEnglish
Pages (from-to)157-163
Number of pages7
JournalMaterials Research Bulletin
Volume58
DOIs
StatePublished - Oct 2014

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • A. Semiconductors
  • B. Luminescence
  • B. Optical properties
  • D. Diffusion
  • D. Electrical properties

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