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Search found 4 matches

by brad2thebone
May 1st, 2014, 7:11 am
Forum: Solar Cell Measurements
Topic: 4-point solar cell IV with 2450 and custom relay
Replies: 3
Views: 18503

Re: 4-point solar cell IV with 2450 and custom relay

Thanks, Dale. When we are characterizing the diode quality in the dark, the current levels can be in the 1 E-8 A range, give or take an order of magnitude. By default, the routine is to step the voltage by some set value and measure the current. I haven't personally experimented with sourcing curren...
by brad2thebone
April 30th, 2014, 9:28 am
Forum: Solar Cell Measurements
Topic: 4-point solar cell IV with 2450 and custom relay
Replies: 3
Views: 18503

4-point solar cell IV with 2450 and custom relay

Our organic solar cells have 6 pixels on a substrate that we would like to measure with 4-points, switching via a custom relay. We will use a 2450 with the rear triax connections, passing triax cable through a metallic enclosure (nitrogen glovebox), then into a metallic project box that will house t...
by brad2thebone
April 17th, 2014, 11:56 am
Forum: Low Current Measurements
Topic: Low Level Measurements, 7th edition
Replies: 3
Views: 16482

Re: Low Level Measurements, 7th edition

Thanks,
Dale

-Brad
by brad2thebone
April 17th, 2014, 7:17 am
Forum: Low Current Measurements
Topic: Low Level Measurements, 7th edition
Replies: 3
Views: 16482

Low Level Measurements, 7th edition

I was at the APS MArch meeting in Denver and spoke with the gentleman who was the representative and product engineer about the 2450. He scanned my badge to send me a quote for the 2450 and a print copy of the low level measurements guide. I never received the guide and when I called Keithley to enq...

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