Speaker
Mr
Juvet Nche Fru
(University of Pretoria)
Description
The interactions between aluminium, gold, silver, tin, gold/zinc metal electrodes with methylammonium lead tribromide perovskite were studied. The metals were deposited on the substrates by physical vapour deposition using a resistive evaporator. Likewise, methylammonium lead tri-bromide perovskite thin films were grown on the deposited metal films by sequential physical vapour deposition of lead (II) bromide and methylammonium bromide. The structural and morphological properties were observed over a period of one month. Field emission scanning electron microscopy showed that aluminium reacts aggressively with the perovskites immediately after deposition leading to exfoliation of the grains. X-ray diffraction patterns confirmed that the exfoliation was a result formation of alumina in air. On the other hand, gold/zinc alloy was relatively stable with methylammonium lead tri-bromide. This study paves the way for the selection of electrode metals for stable methylammonium lead tri-bromide perovskites solar cells
Apply to be<br> considered for a student <br> award (Yes / No)?
Yes
Level for award<br> (Hons, MSc, <br> PhD, N/A)?
PhD
Primary author
Mr
Juvet Nche Fru
(University of Pretoria)
Co-authors
Dr
Mmantsae Diale
(University of Pretoria)
Dr
Nolwalzi Nombona
(Department of Chemistry, University of Pretoria, Private Bag X20, Hatfield 0028, South Africa)
