Measuring Indium Concentrations

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Discussion Overview

The discussion revolves around methods for measuring indium concentrations in the context of research on photovoltaics, specifically after copper etching processes with CIGS films. Participants explore various techniques that could be employed in the absence of immediate access to absorption spectroscopy equipment.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant suggests absorption spectroscopy for measuring indium concentrations but notes a delay in obtaining necessary parts.
  • Another participant proposes X-ray fluorescence and SIMS as viable alternatives, contingent on access to the required equipment.
  • A later reply reiterates the suggestion of X-ray fluorescence and SIMS, seeking additional methods.
  • Wet analysis is mentioned as another potential method, though it is noted to require more effort compared to the previously mentioned techniques.

Areas of Agreement / Disagreement

Participants present multiple competing views on measurement methods, with no consensus on a single approach. The discussion remains unresolved regarding the best alternative method to absorption spectroscopy.

Contextual Notes

Limitations include potential dependencies on equipment availability and the varying complexity of the suggested methods.

Who May Find This Useful

Researchers and students working in the field of photovoltaics or materials science, particularly those interested in analytical techniques for measuring element concentrations.

EpiGen
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I am undergoing a research term at my university working with photovoltaics. We are required to measure the concentration of Indium after doing copper etching processes with CIGS films. We've considered absorption spectroscopy but it will be weeks until we have the parts necessary to use this method and I would like to start sooner. Does anyone have any other methods or ideas? Thank you very much!
 
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Xray fluorescence and SIMS should both work if you have access to the equipment.
 
phyzguy said:
Xray fluorescence and SIMS should both work if you have access to the equipment.


Thanks! Are there any others?
 
Wet Analysis could be another way out.

but unfortunately it requires bit more workout than those formerly described by phyzguy!
 
Last edited:

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