Relationship of Band-Edge Luminescence to Recombination Lifetime in Silicon Wafers

Details Relationship of Band-Edge Luminescence to Recombination Lifetime in Silicon Wafers Relationship of Band-Edge Luminescence to Recombination Lifetime in Silicon Wafers

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008jemat..37..396a&link_type=abstract

Journal of Electronic Materials, Volume 37, Issue 4, pp.396-402

Physics

3

Silicon, Recombination Lifetime, Minority Carrier Lifetime, Photoluminescence

Scientific paper

In recent years, intrinsic luminescence has been used as a method to characterize the recombination lifetime of crystalline silicon. The assumption is that the steady-state intrinsic photoluminescence at 1.09 eV (1.134 μm) can be related to the recombination lifetime. In this work, we measured the band-edge photoluminescence (PL) intensities of a number of single-crystal wafers. The resistivity in the wafer set ranges from 1 to 11,000 ohm-cm under constant excitation intensity. We then measured the PL spectra and recombination lifetimes of these wafer sets under a variety of conditions. The lifetime was measured using resonant-coupled photoconductive decay (RCPCD) in both air ambient and an iodine/methanol solution. The same procedure was used for the PL spectra. Plots of the measured lifetime versus the PL intensity showed weak correlation between the two quantities in air ambient. However, there is a positive relationship between the near-bandgap PL intensity and the recombination lifetime for passivated surfaces. Some fundamental physical reasons will be used to explain these results.

Affiliated with

Also associated with

No associations

Rating

Relationship of Band-Edge Luminescence to Recombination Lifetime in Silicon Wafers does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Relationship of Band-Edge Luminescence to Recombination Lifetime in Silicon Wafers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Relationship of Band-Edge Luminescence to Recombination Lifetime in Silicon Wafers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1703328