Can anyone suggest a source where I can buy substrates for bottom gate, bottom contact OFETs which already have pre-structured S/D contacts? I.e. substrates where I only have to deposit my organic semiconductor in order to obtain functioning devices e.g. for material testing?
A possible source is
Fraunhofer-Institut für Photonische Mikrosysteme IPMS
Maria-Reiche-Str. 2
01109 Dresden
https://www.ipms.fraunhofer.de/de/research-development/end-of-line-test-substrates.html
On the website you find a contact person.
Hi Mrs Hauke,
Interesting bottom gate substrates (Si based) with SiO2 as dielectric and linear top contacts with length of up to 10 um may be found in Ossila website.
https://www.ossila.com/products/prefabricated-platinum-ofet-test-chips
Other website to buy contacts, not for FETs, is the Metrohm’s. Most are for sensors.
( https://www.metrohm.com/en/products/electrochemistry/electrochemistry-electrodes/ )
Hope it may help you,
Bests,
Ossila is a good vendor for prefabricated OTFT substrates. If you are willing to use SiO2 dielectric then its easier compared to glass substrates in which you have to buy another gate mask also.
https://www.ossila.com/products/prefabricated-platinum-ofet-test-chips
https://www.ossila.com/products/interdigitated-ito-ofet-substrates
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