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File:Fluorescent lighting spectrum peaks labelled.png

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Summary

Description
English: Fluorescent lighting spectrum with emission peaks numbered. Graph of Intensity (counts) vs. Wavelength (nm) in the visible spectrum.
Date circa September 2005
date QS:P,+2005-09-00T00:00:00Z/10,P1480,Q5727902
Source This file was derived from: Fluorescent lighting spectrum peaks labelled.gif
Author Original: Deglr6328 at English Wikipedia
Derivative work: H Padleckas
Other versions Fluorescent lighting spectrum peaks labelled.gif



Spectrum with peaks labelled taken with an Ocean Optics HR2000 spectrometer [1] of ambient light provided by fluorescent lamps. Spectrum taken by me (apparently en:user:Deglr6328). The spectrometer appears to be about ~.6 to .8 nm off judging from the location of known peaks. Interpretation of spectral peaks has been done using the NIST database of spectra for mercury [2], a paper on the photoluminescent properties of Eu:Y2O3 [3], also here [4] and here[5], and an article on fluorescent light phosphors [6]. This spectrum is not calibrated for intensity.

Peak number Wavelength of peak (nm) Species producing peak Actual line location (nm)
1 405.4 mercury 404.656
2 436.6 mercury 435.833
3 487.7 terbium from Tb3+ ~485 to 490
4 542.4 terbium from Tb3+ ~543 to 544
5 546.5 mercury 546.074
6 577.7 likely terbium from Tb3+ or mercury 576.960 for Hg or ~578 for Tb
7 580.2 mercury or terbium from Tb3+ 579.066 for Hg or ~580 for Tb
8 584.0 possibly terbium from Tb3+ or europium in Eu+3:Y2O3 ~580
9 587.6 likely europium in Eu+3:Y2O3 ~587
10 593.4 likely europium in Eu+3:Y2O3 ~593
11 599.7 likely europium in Eu+3:Y2O3 ~598
12 611.6 europium in Eu+3:Y2O3 ~611
13 625.7 likely terbium from Tb3+ ~625
14 631.1 likely europium in Eu+3:Y2O3 ~630
15 650.8 likely europium in Eu+3:Y2O3 ~650
16 662.6 likely europium in Eu+3:Y2O3 ~661
17 687.7 likely europium in Eu+3:Y2O3 ~687-688
18 693.7 likely europium in Eu+3:Y2O3 ~693
19 707 and 709 likely europium in Eu+3:Y2O3 ~707 and ~709
20 712.3 likely europium in Eu+3:Y2O3 ~712
21 760.0 likely argon 758.9315 or 763.5106 (??)
22 811.0 likely argon 811.531
  • Note that the terbium could be either Tb3+, Ce3+:LaPO4 or Tb3+:CeMgAl11O19.

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Date/TimeThumbnailDimensionsUserComment
current05:52, 3 June 2009Thumbnail for version as of 05:52, 3 June 20091,268 × 777 (16 KB)H Padleckas{{Information |Description={{en|1=Fluorescent lighting spectrum with emission peaks labeled}} |Source=file:Fluorescent lighting spectrum peaks labelled.gif |Author=en:user:Deglr6328 |Date=about September 2005 |Permission= |other_versions=[[:file:
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