On any I-V measurement system (Keithely or Agilent) there is an option available to set x-axis and y-axis. we can set they as I-t , I-V or V-t. I'm only familiar with Agilent one(Agilent B2900A quick I/V measurement software), in which we can easy set the axes by selecting as

Graph properties - Quick settings- X data type(Current, Voltage, Time) and Y-data type(Current, Voltage, Time)

@Shamjid- Thanks for replying. I am using Labtracer 2.9 software to drive Keithley sourcemeter. I did not find any option to measure I-t or V-t curve.

@ atharva- this option is available in keithley 2400 series source meter. For operation we are using labtracer 28... if available go through it.

@Prakash- Can you please elaborate. Did you get labtracer 28 from the internet ?

You mention that you want to measure voltage and current decays for your devices. Are you talkning about photovoltage/photocurrent transients ? In that case, you're talking about which temporal resolution ? Usually, you would do such measurements on solar cells in the 100ps - 100ms regime, and so, we usually use a transient set-up based on a pulsed light focused on the sample (in addition of a bias light used to vary the operation conditions up to full sunlight), and the electrical recording on the cell is made using a fast digital oscilloscope...

If you just want to measure the time evolution of your signal (current or voltage), then it's indeed only a matter of properly using the built-in commands of your SMU.

@Johanan- I need to measure the time evolution of my current / voltage signal and not the transients. The temporal resolution I am looking for is of the order of seconds. Can you please elaborate on how to use the in-built commands of my SMU to do so. I am using Labtracer 2.9 to drive my sourcemeter. Any help is appreciated.

I'm not used to Labtracer. We always develop our automations using Labview.

Good luck for your developments.

Cheers,

@Johanan-Thanks anyways !

 I think the easy way, just measure the I-V and by manually try to close and open, the light in three second, respectively (for example) by using something thick (to be dark completely), then  you can plot I-time and V-time, we can say this way use for time response and photo sensitivity of the solar cell.

Thanks for answering Karwan. But I want to follow the time evolution of photovoltage. I guess your suggested method wont allow me that. Thanks anyways

@ Atharva,

I am also trying to find the solution for the same characterization. ie, for photodiodes, time vs current. I am using Agilent B2900. Did you got the answer for your question. If yes, please share it

Nope...but i m now using a potentiostat to measure the same. It has a built-in finction to measure transient current or voltage

Hi,

I know, it has been a year, but I faced the same issue and got the solution recently which I am sharing here. Keithley has this software for various models called 'KickStart Instrument Control Software' which do the job for I-t or V-t measurements. 

The link is attached as well.

http://www.tek.com/software/KickStart/1-8-0

Dear @Md Nadim Ferdous Hoque, I am facing the same problem of measuring I-t with V fixed and your suggestions helped me lot. I found and installed the KickStart, however, I cannot successfully connect the software and my instrument (Keithley 2400). Could you please let me know which Keithley model that you succeeded in?

@Xiaowen Zhan, I have also used Keithley 2400 and it worked! Did you use GPIB connector ?

@ Md Nadim Ferdous Hoque, It worked! Thanks for your reply!

Labtracer works like a charm.

@ Md Nadim Ferdous Hoque and @ Xiaowen Zhan,  i have a keithley 2636B , is it possible to use this to measure the current vs time curve ?

how can I measure the conductivity from the I V plots? I don't have any other data