I need to measure voltage and current transients on my devices (solar cell, photodetector). Can this be done using a keithley sourcemeter? I have a 2602A series sourcemeter from Keithley (if that helps).
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,
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 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
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