Electroluminescence setup using OceanOptics spectrometers and Keithley 2400 sourcemeter

[Scirobo]

I am relatively new to LabVIEW, but am trying to write a VI for Electroluminescence using an
OceanOptics USB2000+UV-VIS-ES spectrometer and Keithley 2425 sourcemeter
that performs an I-V sweep and then outputs the current and voltage for a specific luminescence with
the corresponding spectral waveform. Any help would be appreciated. Thanks.

[Albert.Geven]

Did you download the drivers for both the instruments?

[Scirobo]

Thank you for your reply

Yes currently I am able to use the keithley labview to set up a current sweep with my specifications,

and am also able to read the LED response using the oceanoptics usb2000+ labview.

What I would like to do is to incorporate the two VIs so that the ocean optics IV can save the

voltage and current values at a certain optical emission level and then save the spectral curve for that

emission level.

For now I am physically reading the output voltage and current then saving the spectra for those parameters.

Ideally I would like to develop a VI that outputs a chart with Electroluminescence, Peak wavelenght, voltage and current

with current as the independent variable.

I have attached the labviews that I am trying to work with.

[Scirobo]

also using this

[Perry_S]

Hi Scirobo,

It seems that you already have all of the components for your VI. Simply adding them together should not be too difficult. You can simply create a VI that uses the code from each of the VIs that does individual tasks. You can copy and paste the code in or use the VIs as Sub VIs. Are you having any specific issues with this? Let me know.

Regards,

Perry S.

[Scirobo]

Perry S,

Thank you for your reply. I guess the main issue that I am having is figuring out a way to trigger the spectrometer to record the optical spectrum to a spreadsheet for

specific emmission levels, and then also record the voltage and current reading at those emmision levels.

Thanks

[Albert.Geven]

Instead of a spreadsheet file, start with a textfile and record the following numbers on one line:

time, current, voltage, spectrum values

[Perry_S]

Hi Scirobo,

What version of LabVIEW are you working with? Have you tried using the write to spreadsheet VI? Are you able to get the data into LabVIEW? Once you can get the information into LabVIEw, logging it should be relatively easy.

Regards,

Perry S.