Looking for Spectral Response of CdTe

[Anton Driesse]

Does anyone have a good quality and relatively recent spectral response
measurement of a CdTe module that they are allowed to share with the
world, and willing to share with the world?

Anton

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PV Performance Labs
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www.pvperformancelabs.com

[kevina...@gmail.com]

Not ideal, but maybe better than nothing... some old, public, SRs for First Solar Series 4 are in this report: https://web.archive.org/web/20191109091649/https://www.firstsolar.com/-/media/First-Solar/Technical-Documents/Series-4-Energy-Prediction/Third-Party-Validation-of-First-Solar-PAN-Files.ashx?la=en

Kevin

[Anton Driesse]

Thanks very much, Kevin. I have this one, but I know that the Series 5 already had much better UV response, so using the Series 4 SR with current CdTe modules would probably be quite far off the mark. 🙁

Anton

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[Anton Driesse]

Ok, so it seems everyone has signed NDAs or something.  Is anyone able and willing to comment qualitatively on the differences between First Solar Series 4.2 spectral response and later series?

Thanks!

Anton

 4.2 which led to two different sets of co-efficients for the spectral impact

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PV Performance Labs
Emmy-Noether-Str. 2
79110 Freiburg
Germany

+49-761-8973-5603 (Office)
+49-174-532-7677 (Mobile)

www.pvperformancelabs.com

[cwh...@sandia.gov]

Anton,

I don't have data to share, only passing along that there are several presentations at this year's PVSC, on the topic of spectral response for CdTe devices. I don't know if the work involved the measurements you are seeking. If you aren't able to see the titles in the online program, I could pull those for you when I'm back at the office.

Cliff

[Anton Driesse]

Thanks for thinking of this, Cliff.  I had looked up Keith's presentation already, and have now looked at Daniel's as well. Indeed they both appear to have spectral response data, but given the commercial nature of those presentations, I do not think that they will share this data.

Based on information that I have been able to find, it appears that the SR of the FS modules has not changed significantly since the Series 4.2. That would be the non-authoritative answer to my qualitative question. Perhaps it helps someone out there who has the older data and is wondering about using it today.

I think the most promising avenue for getting the actual SR measurements into the public domain would be for a national lab to take the initiative.

Anton

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