Speaker
Description
The successful use of Sn-based material as light absorber in Schottky barrier solar cell with a PCE efficiency of 0.9%, encouraged researchers to pursue the material as a possible replacement of lead for stability of perovskites. This led to the development of 2D/3D Sn-based perovskites as prospective future candidates for stable HaP solar cell, where the photo conversion efficiency (PCE) has steadily increased to 14.81%. However, the fast and easy oxidation of Sn^(2+) to Sn^(4+) in the system contributes to poor stability and low PCE of Sn-based perovskite solar cells. In this work, SnF2 was gradually introduced in the FASnI3 perovskite precursor solution alongside N-N’-diphenyl-P-phenylenediamine (DPP-DTT) antioxidant as a co- additive, and their effect on the performance and stability of the perovskite film studied. The results show improved stability from less than an hour with SnF2 alone to more than 1300 hours with DPP-DTT. A 3D planar inverted FTO/PEDOT:PSS/FASnI3/PCBM:P3HT/Ag structure was fabricated. The results show improved stability from less than an hour with SnF2 alone to more than 1300 hours with DPP-DTT.
Level for award;(Hons, MSc, PhD, N/A)?
N/A
| Apply to be considered for a student ; award (Yes / No)? | No |
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