[labnetwork] Cross contamination due to evaporation on lead containing perovskite material

[Fouad Karouta]

Dear Aamer,

Our open access e-beam evaporator is regularly used to evaporate gold on perovskite materials. We haven't experienced any issue with this.
Only point of attention, pumping time may go bit longer to reach the required vacuum. Some users reduce the system base pressure when they use it for evaporating gold on perovskite.

Best regards,
Fouad

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Manager ANFF ACT Node
Australian National Fabrication Facility
Research School of Physics
L. Huxley Building (#56), Mills Road, Room 4.02
Australian National University
ACT 2601, Canberra, Australia
Tel: + 61 2 6125 7174
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Email: fouad.karouta at anu.edu.au<mailto:fouad.karouta at anu.edu.au>
http://anff-act.anu.edu.au/



From: labnetwork-bounces at mtl.mit.edu <labnetwork-bounces at mtl.mit.edu> On Behalf Of Dr. Aamer Mahmood
Sent: Sunday, 10 November 2019 9:54 PM
To: labnetwork at mtl.mit.edu
Subject: [labnetwork] Cross contamination due to evaporation on lead containing perovskite material

Hello all,
I have been asked by a colleague to evaporate gold on some organic photovoltaic cells. The cells contain lead containing perovskite material.
The evaporator used traditionally for perovskite based research is currently down and to save time the use of another evaporator used for evaporation of metals and reactively deposited metal oxides is being explored.
I am concerned about contamination of the chamber - especially by lead.
I would appreciate relevant experiences and opinions.
Thanks.
-Aamer Mahmood

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